Texas Instruments Amplifier and Data Converter User Manual

Operational Amps
Instrumentation Amps
Comparators
Special Function Analog
Delta-Sigma (∆Σ) ADCs
MicroSystems ADCs
SAR ADCs
Pipeline ADCs
High-Performance DACs
Current Steering DACs
High-Speed Amps
Power Amps
Buffers
Ref
Amp
ADC
Processor
Ref
DAC
Amp
Amplifier and Data Converter
Selection Guide
3Q 2007
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
2
Amplifier and Data Converter Selection Guide
Signal Chain
Plug-In
Power
Power Supply
Control
Battery
Management
LDOs
DC/DC
Conversion
LVDS/
MLVDS
Serial Gigabit
Transceiver
USB
RS-485/
422
Low-Power
RF
CAN
Temp Sensors
Pages 83-85
Inputs
Amp
ADC
Pages 52-68 Pages 86-93
Processor
REF
Pages 81-82
DSP
C6000™, C5000™,
C2000™
Microcontrollers
MSP430 Series
MSC12xx Series Page 57
Power and
Control
SAR
Pages 58-63
Pipeline
Pages 64-68
Signal & High-Speed Op Amps pg. 6-19 Video Op Amps pg. 20-22 Comparators pg. 23-25 Voltage-Controlled Gain Amps pg. 34-36 Audio Input Amps pg. 37-41 Logarithmic Amps pg. 47 Integrating Amps pg. 48
Difference Amps pg. 26-27 Current Shunt Monitors pg. 28-29 Instrumentation Amps pg. 30-33 Digitally Programmable Gain Amps pg. 34-36
Sensor Conditioners and 4-20mA Transmitters pages 45-46
Amplifiers for Driving ADCs pages 50-51
Isolation Amplifiers page 49
Audio Products
Pages 98-100
Pages 52-57
Plug-In
Power
Power Supply
Control
Battery
Management
LDOs
DC/DC
Conversion
LVDS/
MLVDS
Serial Gigabit
Transceiver
USB
RS-485/
422
Low-Power
RF
CAN
Temp Sensors
Pages 83-85
Inputs
Amp
ADC
Pages 52-68 Pages 86-93
Processor
REF
Pages 81-82
DSP
C6000™, C5000™,
C2000™
Microcontrollers
MSP430 Series
MSC12xx Series Page 57
Power and
Control
SAR
Pages 58-63
Pipeline
Pages 64-68
Signal & High-Speed Op Amps pg. 6-19 Video Op Amps pg. 20-22 Comparators pg. 23-25 Voltage-Controlled Gain Amps pg. 34-36 Audio Input Amps pg. 37-41 Logarithmic Amps pg. 47 Integrating Amps pg. 48
Difference Amps pg. 26-27 Current Shunt Monitors pg. 28-29 Instrumentation Amps pg. 30-33 Digitally Programmable Gain Amps pg. 34-36
Sensor Conditioners and 4-20mA Transmitters pages 45-46
Amplifiers for Driving ADCs pages 50-51
Isolation Amplifiers page 49
Audio Products
Pages 98-100
Pages 52-57
Analog
Monitoring and
Control
Voltage
References
Temperature
Sensors
High-
Reliability
Products
Amplifiers
Analog-to-
Digital
Converters
Digital-to-
Analog
Converters
Technical
Support
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifier and Data Converter Selection Guide
Signal Chain
3
Hot
Swap
Special
Functions
DSP and
FPGA Power
Digital Power
DAC
Pages 69-76 Pages 94-97
High
Performance
Pages 69-74
Amp
Power
PCI
1394
UARTs GTLP/ VME
INTERFACE
Current
Steering
Pages 75-76
Analog
Monitoring
and Control
Pages 77-80
PWM Driver
REF
Pages 81-82
Operational Amps pg. 6-14 High-Speed Amps pg. 15-19
Video Amps pg. 20-22
Power Amps and Buffers pg. 42-43
PWM Valve, Solenoid Drivers & Speaker Drivers pg. 44
Clocks &
Timers
POWER MANAGEMENT
Outputs
Page 69
Audio DACs
Pages 98-100
Hot
Swap
Special
Functions
DSP and
FPGA Power
Digital Power
DAC
Pages 69-76 Pages 94-97
High
Performance
Pages 69-74
Amp
Power
PCI
1394
UARTs GTLP/ VME
INTERFACE
Current
Steering
Pages 75-76
Analog
Monitoring
and Control
Pages 77-80
PWM Driver
REF
Pages 81-82
Operational Amps pg. 6-14 High-Speed Amps pg. 15-19
Video Amps pg. 20-22
Power Amps and Buffers pg. 42-43
PWM Valve, Solenoid Drivers & Speaker Drivers pg. 44
Clocks &
Timers
POWER MANAGEMENT
Outputs
Page 69
Audio DACs
Pages 98-100
Analog
Monitoring and
Control
Voltage
References
Temperature
Sensors
High-
Reliability
Products
Amplifiers
Analog-to-
Digital
Converters
Digital-to-
Analog
Converters
Technical
Support
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifier and Data Converter Selection Guide
Table of Contents
4
Precision Operational Amplifiers <50MHz
Overview/Technology Primer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Low Offset Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Low Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Low Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Low Input Bias Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Wide Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Wide Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Single Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
High-Speed Amplifiers >50MHz
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-19
Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-22
Comparators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-25
Difference Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26-27
Current Shunt Monitors
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Analog Output Current Shunt Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28-29
Digital Output Current Shunt Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77-80
Instrumentation Amplifiers
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30-31
Single Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Dual Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Digitally Programmable Gain Amplifiers . . . . . . . . . . . . . . . . .34
Voltage-Controlled Gain Amplifiers . . . . . . . . . . . . . . . . . . . . .35-36
Audio Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37-41
Power Amplifiers and Buffers . . . . . . . . . . . . . . . . . . . . . . . . . . .42-43
Pulse Width Modulation Power Drivers . . . . . . . . . . . . . . . . . .44
Sensor Conditioners/4-20mA Transmitter . . . . . . . . . . . . .45-46
Logarithmic Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Integrating Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Isolation Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Amplifiers for Driving ADCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-51
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifier and Data Converter Selection Guide
Table of Contents
5
Analog-to-Digital Converters (ADCs) by Architecture
Delta-Sigma (∆Σ) ADCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52-55
Wide Bandwidth ∆Σ ADCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Intelligent ADCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
SAR ADCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58-63
Pipeline ADCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64-68
Analog Monitoring and Control (ADC and DAC) . . . . . . . . . . . . . . . . . . . . . . . .77-80
Digital-to-Analog Converters (DACs) by Architecture
Industrial Bipolar Delta-Sigma (∆Σ) DACs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
High-Accuracy, Industrial Bipolar and General-Purpose DACs . . . . . . . . . . . . .70-74
Current Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75-76
Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
Analog Monitoring and Control
AMC Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77-79
Digital Current Shunt Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
Voltage References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81-82
Temperature Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83-85
Quick Reference Selection Tables for Data Converters
Quick Reference ADC Selection Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86-93
Quick Reference DAC Selection Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94-97
Quick Reference Touch Screen Controllers with/without Audio Selection Tables . . . .98
Quick Reference Audio Converters Selection Tables . . . . . . . . . . . . . . . . . . . .98-100
Design and Evaluation Tools
TINA-TI™/Spice Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Amplifiers Design Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
FilterPro™, SARdriverPro™ and MDACBufferPro™ . . . . . . . . . . . . . . . . . . . . . . . .102
Digitally Calibrated Sensor Signal Condition and 4-20mA Evaluation Modules . . . .103
Signal Chain Prototyping System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104-105
Evaluation Boards and ADCPro™ Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106
Data Converter Plug-In (DCP) for Code Composer StudioTMIDE . . . . . . . . . .107-110
Application Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111-114
Reference Designs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Device Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115-118
Worldwide Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
6
Amplifiers
Texas Instruments (TI) offers a wide range of op amp types including high precision, microPower, low voltage, high voltage, high speed and rail-to-rail in several different process technologies. TI has developed the industry's largest selection of low-power and low-voltage op amps with features designed to satisfy a very wide range of applications. To help facilitate the selection process, an interactive online op amp parametric search engine is available at amplifier.ti.com/search with links to all op amp specifications.
Design Considerations
Choosing the best op amp for an application involves consideration of a variety of inter­related requirements. In doing so, designers must often consider conflicting size, cost and performance objectives. Even experienced engineers can find the task daunting, but it need not be so. Keeping in mind the following issues, the choices can quickly be narrowed to a manageable few.
Supply voltage (VS)—tables include low
voltage (< 2.7V min) and wide voltage range (> 5V min) sections. Other op amp selection criteria (e.g., precision) can be quickly exam­ined in the supply range column for an appropriate choice. Applications operating from a single power supply may require rail-to-rail performance and consideration of precision-related parameters.
Precision—primarily associated with input
offset voltage (VOS) and its change with respect to temperature drift, PSRR and CMRR. It is generally used to describe op amps with low input offset voltage and low input offset voltage temperature drift. Precision op amps are required when amplifying tiny signals from thermocouples and other low-level sensors. High-gain or multi-stage circuits may require low offset voltage.
Gain bandwidth product (GBW)—the gain
bandwidth of a voltage-feedback op amp determines its useful bandwidth in an application. The maximum available bandwidth is approximately equal to the gain bandwidth divided by the closed-loop gain of the applica­tion. For voltage feedback amplifiers, GBW is a constant. Many applications benefit from choosing a much wider bandwidth/slew rate
op amp to achieve low distortion, excellent linearity, good gain accuracy, gain flatness or other behavior that is influenced by feedback factors.
Power (IQrequirements)—a significant issue
in many applications. Because op amps can have a considerable impact on the overall system power budget, quiescent current, especially in battery-powered applications, is a key design consideration.
Rail-to-rail performance—rail-to-rail
output provides maximum output voltage swing for widest dynamic range. This may be particularly important with low operating voltage where signal swings are limited. Rail-to-rail input capability is often required to achieve maximum signal swing in buffer (G = 1) single-supply applications. It can be useful in other applications, depending on amplifier gain and biasing considerations.
Voltage noise (VN)—amplifier-generated
noise may limit the ultimate dynamic range, accuracy or resolution of a system. Low­noise op amps can improve accuracy, even in slow DC measurements.
Input bias current (IB)—can create offset
error by reacting with source or feedback impedance. Applications with high source impedance or high impedance feedback elements (such as transimpedance amplifiers or integrators) often require low input bias
current. FET-Input and CMOS op amps generally provide very low input bias current.
Slew rate—the maximum rate of change of
the amplifier output. It is important when driving large signals to high frequency. The available large signal bandwidth of an op amp is determined by the slew rate SR/.707(2π)V
P
.
Package size—TI offers a wide variety of
microPackages, including WCSP, SOT23, SC70 and small, high power-dissipating PowerPAD™ packages to meet space­sensitive and high-output drive requirements. Many TI single-channel op amps are available in SOT23, with some dual amplifiers in SOT23-8.
Shutdown mode—an enable/disable
function that places the amp in a high impedance state, reducing quiescent current in many cases to less than 1µA. Allows designers to use wide bandwidth op amps in lower power applications, enabling them only when they are needed.
Decompensated amplifiers—for
applications with gain greater than unity gain (G > 1), decompensated amps provide significantly higher bandwidth, improved slew rate and lower distortion over their unity-gain stable counterparts on the same quiescent current or noise.
What is the amplitude of the input signal?
To ensure signal errors are small relative to the input signal, small input signals require high precision (e.g., low offset voltage) amplifiers. Ensure that the amplified output signal stays within the amplifier output voltage.
Will the ambient temperature vary?
Op amps are sensitive to temperature variations, so it is important to consider offset voltage drift over temperature.
Does the common-mode voltage vary?
Make sure the op amp is operated within its common-mode range and has an adequate common-mode rejection ratio
(CMRR). Common-mode voltage will induce additional offset voltage.
Does the power supply voltage vary?
Power supply variations affect the offset voltage. This may be especially important in battery-powered applications.
Precision Application Examples
• High gain circuits (G > 100)
• Measuring small input signals (e.g., from a thermocouple)
• Wide operating temperature range circuits (i.e., in automotive or industrial applications)
• Single-supply 5V data-acquisition systems where input voltage span is limited
Common Op Amp Design Questions
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
7
Technology Primer
Understanding the relative advantages of basic semiconductor technologies will help in selecting the proper device for a specific application.
CMOS Amps—when low voltage and/or low
power consumption, excellent speed/power ratio, rail-to-rail performance, low cost and small packaging are primary design considerations, choose microPackaged CMOS amps boasting the highest precision in the industry.
High-Speed Bipolar Amps—when the highest
speed at the lowest power is required, bipolar technology delivers the best performance. Extremely good power gain gives very high output power and full power bandwidths on the lowest quiescent power. Higher voltage requirements are also only satisfied in bipolar technologies.
Precision Bipolar Amps—excel in limiting
errors relating to offset voltage. These amps include low offset voltage and temperature drift, high open-loop gain and common-mode rejection. Precision bipolar op amps are used extensively in applications where the source
impedance is low, such as a thermocouple amplifier, and where voltage errors, offset voltage and drift, are crucial to accuracy.
Low I
B
FET Amps—when input impedance is
very high, FET-input amps provide better over­all precision than bipolar-input amps because of very low input bias current. Using a bipolar amp in applications with high source imped­ance (e.g., 500MpH probe), the offset, drift and noise produced by bias currents flowing through the source would render the circuit virtually useless. When low current errors are required, FET amps provide extremely low input bias current, low offset current and high input impedance.
Dielectrically Isolated FET (Difet™) Amps
Difet processing enables the design of extremely low input leakage amplifiers by eliminating the substrate junction diode present in junction isolated processes. This technique yields very high-precision, low­noise op amps. Difet processes also minimize parasitic capacitance and output transistor saturation effects, resulting in improved bandwidth and wider output swing.
Op Amp Rapid Selector
The tables on the following pages have been subdivided into several categories to help quickly narrow the alternatives.
Precision Offset Voltage
(VOS< 500µV) Pg. 8
Low Power
(IQ< 500µA) Pg. 9
Low Noise
(VN≤ 10nV/ Hz Pg. 10
Low Input Bias Current
(IB≤ 10pA) Pg. 11
Wide Bandwidth, Precision
GBW > 5MHz Pg. 12
Wide Voltage Range
(±5 ≤ VS≤ ±20V) Pg. 13
Single Supply
(VS(min) 2.7V) Pg. 14
High Speed
BW 50MHz Pg. 17
Recommended Recommended
Supply Voltage Design Requirements Typical Applications Process TI Amp Family
VS ≤ 5V Rail-to-Rail, Low Power, Precision, Small Packages Battery Powered, Handheld CMOS OPA3xx, TLVxxxx VS≤ 16V Rail-to-Rail, Low Noise, Low Voltage Offset, Precision, Small Packages Industrial, Automotive CMOS OPA3x, TLCxxxx, OPA7xx VS≤ +3V Low Input Bias Current, Low Offset Current, Industrial, Test Equipment, Optical Networking FET, Difet™ OPA1xx, OPA627
High Input Impedance (ONET), High-End Audio VS≤ +44V Low Voltage Offset, Low Drift Industrial, Test Equipment, ONET, High-End Audio Bipolar OPA2xx, TLExxxx ±5V to ±15V High Speed on Dual Supplies XDSL, Video, Professional Imaging, Difet, High-Speed OPA6xx*, OPA8xx* Dual Supply Data Converter Signal Conditioning Bipolar, BiCOM THSxxxx*
2.7V VS≤ 5V High Speed on Single Supply Consumer Imaging, Data Converter Signal High-Speed CMOS OPA35x, OPA6xx*, Single Supply Conditioning, Safety-Critical Automotive THSxxxx*, OPA8xx*
*See High-Speed section, Page 15-19
Operational Amplifier Naming Conventions
Channels
Single = No Character Dual = 2 Triple = 3 Quad = 4
y
OPA
63
3
Base Model
100 = FET 200 = Bipolar 300 = CMOS (5.5V) 400 = High Voltage (>40V) 500 = High Power (>200mA) 600 = High-Speed (>50MHz) 700 = CMOS (12V) 800 = High-Speed (>50MHz)
Amp Class
TLV = Low Supply Voltage TLC = 5V CMOS TLE = Wide Supply Voltage
278
TLV
x
Channels and Shutdowon Options
0 = Single with Shutdown 1 = Single 2 = Dual 3 = Dual with Shutdown 4 = Quad 5 = Quad with Shutdown
Amp Class
THS = High Speed
y
x
THS
01
Amplifier Type
30 = Current Feedback 31 = Current Feedback 40 = Voltage Feedback 41 = Fully Differential 42 = Voltage Feedback 43 = Fast Voltage Feedback 45 = Fully Differential 46 = Transimpedance 60 = Line Receiver 61 = Line Driver 73 = Programmable Filters
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
Precision Operational Amplifiers
8
1.8V, Zero-Offset, Zero-Drift, Ultra-Low-Power, RRIO, CMOS Amplifiers
OPA333, OPA2333
Get samples, datasheets, and app reports at: www.ti.com/OPA333 and www.ti.com/sc/device/OPA2333
Key Features
• Low offset voltage: 10µV (max)
• Zero drift: 0.05µV/°C (max)
• 0.01Hz to 10Hz noise: 1.1µV
PP
• Quiescent current: 17µA
• Single-supply operation: 1.8V to 5.5V
• Rail-to-rail input/output
• microSize packages: SC70 and SOT23
Applications
• Temperature measurement
• Electronic scales
• Medical instrumentation
• Battery-powered instruments
• Handheld test equipment
The OPA333 series of CMOS operational amplifiers are optimized for low-voltage, single-supply operation and combine TI’s proprietary zero-drift techniques to provide very low offset voltage (10µV max) and near-zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high-impedance inputs that have a commonmode range 100mV beyond the rails and rail-to-rail output that swings within 50mV of the rails.
Low Offset Voltage Operational Amplifiers (V
OS
<
500µV)
IQPer Slew VOSV
OS
VNat
VSV
S
Ch. GBW Rate (25°C) Drift IBCMRR 1kHz Rail-
(V) (V) (mA) (MHz) (V/µs) (mV) (µV/°C) (pA) (dB) (nV
//
Hz) Single to-
Device Description/Technology Ch. (min) (max) (max) (typ) (typ) (max) (typ) (max) (min) (typ) Supply Rail Package(s) Price
*
OPAy334/5 Zero-Drift, SHDN, CMOS 1, 2 2.7 5.5 0.35 2 1.6 0.005 0.02 200 110 Y Out SOT-23, MSOP, SOIC $1.00 OPAy734/5 12V, Auto-Zero, SHDN, CMOS 1, 2 2.7 12 0.75 1.6 1.5 0.005 0.01 200 115 110 Y Out SOT-23, SOIC $1.25
OPAy333 µPower, Zero Drift, CMOS 1, 2 1.8 5.5 0.025 0.35 0.16 0.01 0.02 200 106 Y I/O SC-70, SOT-23, SOIC $0.95
OPAy277 Precision, Bipolar 1, 2, 4 4 36 0.825 1 0.8 0.02 0.1 1000 130 8 N N SON, SOIC, PDIP $0.85 OPA378 Low Power, Wideband 1,2 1.8 5.5 0.100 1 0.5 0.025 0.1 1000 100 15 Y I/O SC70, SOT-23, SOIC $0.95 OPAy380 Auto-Zero, 85MHz, TIA, CMOS 1, 2 2.7 5.5 8.8 90 80 0.025 0.03 50 100 110 Y Out MSOP, SOIC, SSOP $1.95 OPAy381 Precision, 18MHz, TIA, CMOS 1, 2 2.7 5.5 1 18 12 0.025 0.03 50 100 110 Y Out MSOP, SON $1.45 TLC2652A Low Offset, Chopper Stabilized 1 3.8 16 2.4 1.9 3.1 0.001 0.003 100 120 23 N N SOIC $2.20
OPAy211 Low Offset Drift, Bipolar 1, 2 4.5 36 3.6 58 27 0.25 0.2 15,000 114 1.1 N Out SOIC, MSOP, SON $3.45
OPAy227/28 Low Noise, Bipolar 1, 2, 4 5 36 3.8 8 2.3 0.075 0.1 10000 120 3 N N SOIC, PDIP $1.10
OPA827 Precision, FET Input 1, 2 8 36 4.5 18 22 0.25 1 3 108 4.5 N N SOIC, MSOP $5.75
TLE2027/37 Wide Supply, Low Noise, Bipolar 1 8 38 5.3 13, 50 2.8, 7.5 0.1 0.4 90000 100 2.5 N N SOIC, PDIP $0.90 OPAy234 Low Power, Wide Supply, Bipolar 1, 2, 4 2.7 36 0.3 0.35 0.2 0.1 0.5 25000 96 25 N N MSOP, SOIC $1.05 OPA627/37 Ultra-Low THD+N, Difet 1 9 36 7.5 16 55 0.1 0.4 1 106 5.2 N N PDIP, SOIC $12.25 OPAy336 µPower, CMOS 1, 2, 4 2.3 5.5 0.032 0.1 0.03 0.125 1.5 10 80 40 Y Out SOT-23, SOIC $0.40
OPAy727/8 e-trim™, Precision CMOS 1, 2 4 12 4.3 20 30 0.15 0.3 100 86 23 N N MSOP, SON $0.95 OPA365 Wideband, Zero-Crossover 1,2 2.2 5.5 5 50 25 0.2 1 10 100 5 Y I/O SOT-23-5,8SOIC $0.95
OPAy241 µPower, Bipolar 1, 2, 4 2.7 36 0.03 0.035 0.01 0.25 0.4 20000 80 45 Y Out SOIC, DIP $1.15 OPAy251 µPower, ±15V Bipolar 1, 2, 4 2.7 36 0.038 0.035 0.01 0.25 0.5 20000 100 45 Y Out SOIC, DIP $1.15 OPA124 Wide Bandwidth, Bipolar 1 10 36 3.5 1.5 1.6 0.25 1 1 100 8 N N SOIC $3.95 TLC1078 Precision, CMOS 2 1.4 16 0.017 0.085 0.032 0.45 1.1 600 70 68 N N SOIC, DIP $2.30 TLV2211 Low Power, 10V, CMOS 1 2.7 10 0.025 0.065 0.025 0.45 0.5 150 70 22 Y Out SOT23 $0.42
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
OPA333 low power bridge sensing unit.
V
EX
R
R
R
R
OPA333
+
R
+5V
R
1
V
OUT
V
1
REF
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Precision Operational Amplifiers
9
Low-Power Operational Amplifiers (I
Q
<
500µA) Selection Guide
IQPer Slew VOSOffset VNat VSVSCh. GBW Rate (mV) Drift IBCMRR 1kHz Rail­(V) (V) (mA) (MHz) (V/µs) (25°C) (µV/°C) (pA) (dB) (nV/ Hz) to-
Device Description Ch. (min) (max) (max) (typ) (typ) (max) (typ) (max) (min) (typ) Rail Package(s) Price
*
TLV240x 2.5V, Sub-µPower, SS, CMOS 1, 2, 4 2.5 16 0.00095 0.0055 0.0025 1.2 3 300 63 I/O MSOP, PDIP, SOIC, SOT23, TSSOP $0.65 TLV224x Low Voltage, 1µA, SS, CMOS 1, 2, 4 2.5 12 0.0012 0.0055 0.002 3 3 500 55 I/O MSOP, PDIP, SOIC, SOT23, TSSOP $0.60
OPA369 Lowest Power, Zero Crossover 1,2 1.8 5.5 0.001 0.01 0.005 1 2 10 100 160 I/O SC70, SOT23 $0.95
OPAy349 1µA, SS, CMOS 1, 2 1.8 5.5 0.002 0.07 0.02 10 10 15 52 I/O SC70, SOIC, SOT23 $0.75
OPAy333 µPower, SS, RRIO, Zero-Drift, CMOS 1,2 1.8 5.5 0.025 0.35 0.16 0.01 0.05 200 106 60 I/O SC70, SOT23, SOIC $0.95 OPA379 1.8V, Ultra-Low Power, CMOS 1, 2, 4 1.8 5.5 0.005 0.1 0.03 1.5 2.7 50 90 80 I/O SC70, SOT23, SOIC $0.75
TLC1078 Low Voltage, Precision, Bipolar 2 1.4 16 0.017 0.085 0.032 0.45 1.1 600 70 68 Out SOIC, PDIP $2.30 OPAy241 Bipolar, µPower, High CMRR, 1, 2, 4 2.7 36 0.035 0.35 0.1 0.25 0.4 20000 80 45 Out PDIP, SOIC $1.15 OPA703/4 12V, RRIO, General Purpose 1, 2, 4 4 12 0.2 1 0.6 0.75 4 10 70 45 I/O MSOP, SOIC, TSSOP, PDIP $0.40 OPAy336 µPower, SS, CMOS 1, 2, 4 2.3 5.5 0.032 0.1 0.03 0.125 1.5 10 80 40 Out SOT23, SOIC $0.40 OPAy347 µPower, Low Cost, SS, CMOS 1, 2, 4 2.3 5.5 0.034 0.35 0.17 6 2 10 70 60 I/O SC70, SOT23, SOIC, PDIP $0.48 TLV245x µPower, SS, CMOS 1, 2, 4 2.7 6 0.035 0.22 0.12 1.5 0.3 5000 64 51 I/O SOT23, SOIC, PDIP $0.60 OPAy251 µPower, Precision, Bipolar 1, 2, 4 2.7 36 0.038 0.035 0.01 0.25 0.5 20000 100 45 Out SOIC, PDIP $1.15
OPA378 Wide Bandwidth, microPower, e-trim™ 1, 2 1.8 5.5 0.10 1 0.5 0.025 0.1 1000 100 15 I/O SC70, SOT23, SOIC $0.85
OPAy244 µPower, SS, Low Cost, Bipolar 1, 2, 4 2.7 36 0.05 0.24 0.1 1.5 4 25000 84 22 N MSOP, PDIP, SOIC, SOT23, TSSOP $0.55 OPAy348 High Open-Loop Gain, SS, CMOS 1, 2, 4 2.1 5.5 0.065 1 0.5 5 2 10 70 35 I/O SC70, SOIC, SOT23, CSP $0.45 OPA345 Wideband, Single-Supply 1,2,4 2.7 5.5 0.25 4 4 0.5 2.5 10 80 32 I/O SOT23, SOIC, MSOP $1.20 OPA137 Low Cost, FET-Input 1,2,4 4.5 36 0.27 1 3.5 3 15 100 76 45 N SOT23, SOIC, DIP $0.60 OPA234 Low Power, Precision 1, 2, 4 2.7 36 0.3 0.35 0.2 0.1 0.5 25000 96 24 N MSOP, SOIC $1.05 OPAy334/5 Zero-Drift, Precision, CMOS, SS, SHDN 1, 2 2.7 5.5 0.35 2 0.5 0.005 0.02 200 110 Out MSOP, SOIC, SOT23 $1.00
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Ultra-Low-Power, 1µA, RRIO, Zero-Crossover Operational Amplifier
OPA369
Get samples, datasheets, and app reports at: www.ti.com/sc/device/OPA369
Key Features
• Ultra-low supply current: 1µA (max)
• RRIO Zero-Crossover input topology
• Excellent CMRR: 100dB
• Low offset voltage: 1mV (max)
• Excellent GBW for low power: 10kHz
• microPackages: SC70-3, SOT23-3, MSOP
Applications
• Battery-powered instruments
• Portable devices
• High impedance applications
• Medical instruments
• Precision integrators
• Test equipment
The OPA369 family of operational amplifiers combines the TI’s rail-to-rail input/output Zero­Crossover input topology with ultra low power to offer excellent precision to single supply applications. Designed with battery powered instrumentation in mind, the OPA369 features 1mV offset voltage, 10kHz bandwidth, and linear input offset over the entire input range of the 1.8V to 5.5V supply range.
OPA369 as low-power gas-detection circuit. *Expected release date 3Q 2007.
V
CC
+
1/2
OPA2369
C
C
R
1
R
1
REF
S
W
1
R
B
C
2
R
R
F
V
L
CC
1/2
OPA2369
+
V
OUT
10
Amplifiers
Precision Operational Amplifiers
Low-Noise Operational Amplifiers (V
N
10nV/ Hz)
IQPer Slew V
OS
V
OS
VNat VSVSCh. GBW Rate (25°C) Drift IBCMRR 1kHz Rail­(V) (V) (mA) (MHz) (V/µs) (mV) (µV/°C) (pA) (dB) (nV
//
Hz) Single to-
Device Description/Technology Ch. (min) (max) (max) (typ) (typ) (max) (typ) (max) (min) (typ) Supply Rail Package(s) Price
*
OPAy211 Ultra-Low Noise, 1, 2 8 36 3.6 80 27 0.1 0.2 15000 114 1.1 N N MSOP, SOIC, SON $3.95
High Precision TLE2027 Wide Supply, Bipolar 1 8 38 5.3 13 2.8 0.1 0.4 90000 100 2.5 N N SOIC $0.90 OPA300 Very Wide Bandwidth 1 2.7 5.5 12 150 80 2.5 5 5 66 3 Y Out SOT23-6,SOIC-8 $1.25 OPA227 High Precision, Bipolar 1, 2, 4 5 36 3.8 8 2.3 0.075 0.1 10000 120 3 N N SOIC, PDIP $1.10 OPA228 High Speed, Precision, 1, 2, 4 5 36 3.8 33 10 0.075 0.1 10000 120 3 N N SOIC, PDIP $1.10
OPAy827 Ultra-Low THD+N, 1, 2 8 36 4.5 18 22 0.25 1 3 108 4.5 N N MSOP, SOIC $5.75
High-Precision OPAy350 Excellent ADC Driver, 1, 2, 4 2.7 5.5 7.5 38 22 0.5 4 10 76 5 Y I/O MSOP $0.85
OPA365 High Speed, Zero Crossover 1, 2 2.2 5.5 5 50 25 0.5 1 10 100 5 Y I/O SOT-23, SO-8 $0.95
OPA353 Good ADC Driver, 1, 2, 4 2.7 5.5 8 44 22 8 5 10 76 5 Y I/O SOT-23, SOIC $1.00
Low THD+N, CMOS
OPA376 Low Offset, 5MHz 1, 2, 4 2.2 5.5 0.95 5 4 0.05 2 10 80 7.5 Y I/O SC70, SOT23, MSOP, $0.95
General Purpose SO8, TSSOP OPA627/37
Precision, High Speed, 1 9 36 7.5 16, 80 55, 135 0.1 0.4 1 106 5.2 N N SOIC $12.25
Difet™ OPA376 Low Power RRIO 1, 2, 4 2.2 55 0.95 5 4 0.05 2 10 80 7.5 Y I/O SC70, SOT23 $0.95 OPA121 Precision, Difet S 10 36 4.5 2 2 3 2 5 86 8 N N SOIC-8 $5.10 OPAy277 High Precision 1, 2, 4 4 36 0.825 1 0.8 0.02 0.1 1000 130 8 N N SOIC, PDIP $0.85 OPA124 Low Noise, Precision, 1 10 36 7.5 1.5 1.6 0.25 2 1 100 8 N N PDIP $3.95
Bipolar
TLC220x Precision, Low Power, 1, 2 4.6 16 1.5 1.8 2.5 0.5 0.5 100 85 8 Y Out SOIC, PDIP $1.65
LinCMOS OPAy132 Wide Bandwidth, FET-Input 1, 2, 4 4.5 36 4.8 8 20 0.5 2 50 96 8 N N SOIC $1.45
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
1.1nV/ Hz Noise, Low-Power, Precision Bipolar Operational Amplifier
OPA211, OPA2211
Get samples, datasheets, and app reports at: www.ti.com/OPA211 and www.ti.com/sc/device/OPA2211
OPA211 noise density vs. frequency. *Expected Release Date 4Q 2007.
Key Features
• Low noise voltage: 1.1nV/ Hz at 1kHz
• 100nVPPinput voltage noise: 0.1Hz to10Hz
• Low offset voltage: 100µV (max)
• Low offset voltage drift: 0.2µV/°C (typ)
• Unity gain bandwidth 58MHz
• Wide supply range: ±2.25V to ±18V, +4.5V to +36V
• Rail-to-rail output
• Output current: 30mA
• Shutdown: 20µA (max)
Applications
• Low-noise signal processing
• High-performance ADC drivers
• Active filters
• Ultrasound amplifiers
• Professional audio preamplifiers
• Hydrophone amplifiers
• MRI and CAT Scan
The OPA211 and OPA2211 use proprietary design techniques combined with a high voltage isolated silicon germanium process to deliver outstanding noise performance, (1.1nV/ Hz) precision (100µV) offset voltage and wide supply range from 4.5V to 36V single supply operation or ±2.25V to ±18V. Devices have a specified temperature range of –40°C to +125°C and operating temperature range of –55°C to +150°C. This performance is available in very small packaging 3mm x 3mm 8-pin DFN and the 8-pin MSOP.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
10
Hz
Voltage Noise (nV/
1
10
+15V
3.6mA I
Q
+
100µV
OPA211
_
-15V
Frequency (Hz)
1.1nV/ Hz
100
200mV
1k
Amplifiers
Precision Operational Amplifiers
11
JFET Input, High Precision, Low-Noise Operational Amplifier
OPA827
Get samples, datasheets, and app reports at: www.ti.com/sc/device/OPA827
Key Features
• Ultra-low-input bias current: 3pA
• Low Offset: 250µV (max)
• Drift: 1µV/°C
• Low noise: 4.5nV/ Hz at 1kHz
• Bandwidth: 18MHz
• Packages:
Single: MSOP-8, SO-8
Dual: TSSOP-8, SO-8
Applications
• Precision ±10V input front-ends
• Transimpedance amplifiers
• Active filters
• ADC drivers
• DAC output buffer
• High-performance audio
The OPA827 and OPA2827 use proprietary design techniques combined with a high voltage isolated silicon germanium process and FET-input transistors to deliver high input impedance (1 x 1013Ω), outstanding noise performance, (4.5nV/ Hz) and high precision (250µV) offset voltage. Devices have specified temperature range of –40°C to +125°C. This performance is available in very small, 8-pin MSOP packaging.
OPA827 features extremely low noise for data acquisition.
*Expected Release Date 4Q 2007.
Low Input Bias Current Operational Amplifiers (I
B
10pA)
IQPer Slew V
OSVOS
VNat VSVSCh. GBW Rate (25°C) Drift IBCMRR 1kHz Rail­(V) (V) (mA) (MHz) (V/µs) (mV) (µV/°C) (pA) (dB) (nV
//
Hz) Single to-
Device Description/Technology Ch. (min) (max) (max) (typ) (typ) (max) (typ) (max) (min) (typ) Supply Rail Package(s) Price
*
OPA129 Ultra-Low Bias, Difet™ 1 10 36 1.8 1 2.5 2 3 0.1 80 17 N N SOIC $3.20 OPA124 Low Noise, High Precision 1 10 36 7.5 1.5 1.6 0.25 2 1 100 8 N N PDIP $3.95 OPA627/37 Ultra-Low THD+N, Difet 1 9 36 7.5 16, 80 55, 135 0.1 0.4 1 106 5.2 N N PDIP, SOIC $12.25
OPAy827 Low Noise, Precision, FET-Input 1, 2 8 36 4.5 18 22 0.25 1 3 108 4.5 N N MSOP, SOIC $5.75
OPA344 Low Power, RRIO, SS 1, 2, 4 2.7 5.5 0.25 1 1 0.5 2.5 10 80 32 Y I/O MSOP, DIP, SOIC $0.55 OPA363 1.8V, RRIO, High CMRR 1, 2 2.7 5.5 0.75 7 5 0.5 3 10 74 17 Y I/O MSOP, SOIC, SOT23 $0.60 OPAy336 SS, µPower, CMOS 1, 2, 4 2.3 5.5 0.032 0.1 0.03 0.125 1.5 10 80 40 Y Out SOT23, SOIC $0.40 OPAy340 CMOS, Wide Bandwidth 1, 2, 4 2.7 5.5 0.95 5.5 6 0.5 2.5 10 80 25 Y I/O MSOP, SOIC, SOT23, TSSOP $0.80 OPAy350 Excellent ADC Driver, Low Noise 1, 2, 4 2.7 5.5 7.5 38 22 0.5 4 10 76 5 Y I/O PDIP, MSOP, SOIC $0.85
OPAy365 High Speed, Zero-Crossover, 1, 2 2.2 5.5 5 50 25 0.5 1 10 100 5 Y IN SOT23, SO8 $0.95
CMOS
OPA376 Low Offset, 5MHz 1, 2, 4 2.2 5.5 0.95 5 4 0.05 2 10 80 7.5 Y I/O SC70, SOT23, MSOP, $0.95
SO8, TSSOP
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
400nV
PP
PP
200nV /Div
3.6mA I
250µV
+15V
Q
OPA827
0.1Hz to 10Hz Noise
+5V
ADS8505
±10V Input
1600nV
Closest Competition
PP
–15V
1s/Div Frequency (Hz)
Amplifiers
Precision Operational Amplifiers
12
2.2V, 50MHz, 5nV/ Hz, Zero-Crossover Operational Amplifier
OPA365
Get datasheets at: www.ti.com/OPA365
OPA365 designed for 16-bit, single supply acquisition.
Key Features
• Wide bandwidth: 50MHz
• High slew rate: 25V/µs
• Low noise: 5nV/ Hz
• Excellent THD+N: 0.0006%
• Low offset: 500µV (max)
• High CMRR: 100dB
• Rail-to-rail input/output without crossover
• Available in single, dual: OPA365, OPA2365
• microPackaging: SOT23-5, SO-8, DFN-8
Applications
• Precision signal conditioning
• Data acquisition
• Process control
• Test equipment
• Active filters
• Audio
The OPA365 is the newest member of the Zero-Crossover family of op amps featuring TI’s patented single-supply, zero-crossover input stage designed to offer excellent performance for very low-voltage, single-supply ADC applications. These amplifiers are optimized for driving 16-bit SAR ADCs and feature precision CMRR without the crossover associated with traditional complementary input stages. The input common-mode range includes both the negative and positive supplies and the output voltage swing is 10mV beyond supply rails. All versions are specified for operation from –40°C to +125°C. The OPA365 operates on single supplies from
2.2V (±1.1V) to 5.5V (±2.25V) and features 500µV offset on 5mA supply current.
Wide-Bandwidth, Precision Operational Amplifiers (GBW > 5MHz)
IQPer Slew V
OSVOS
VNat
VSVSCh. GBW Rate (25°C) Drift I
B
CMRR 1kHz Rail-
(V) (V) (mA) (MHz) (V/µs) (mV) (µV/°C) (pA) (dB) (nV
//
Hz) Single to-
Device Description/Technology Ch. (min) (max) (max) (typ) (typ) (max) (typ) (max) (min) (typ) Supply Rail Package(s) Price
*
TLV2460 Lowest Power, Wide 1, 2, 4 2.7 6 0.575 5.2 1.6 2 2 14000 66 11 Y I/O SOT23-6, PDIP-8, $0.65
Bandwidth SOIC-8, TSSOP-8 OPAy340 Low Power, CMOS 1, 2, 4 2.7 5.5 0.95 5.5 6 0.5 2.5 10 80 25 Y I/O SOT23, DIP, SOIC $0.80 OPA343 General Purpose 1,2,4 2.5 5.5 1.25 5.5 6 3 8 10 74 25 Y I/O SOT23-5, SOIC-8 $0.60 OPAy363/4 1.8V, Zero-Crossover, CMOS 1, 2, 4 1.8 5.5 0.75 7 5 0.5 3 10 74 17 Y I/O SOT, SOIC $0.60 OPA373 Best Performance/Price 1 2.7 5.5 0.75 6.5 5 3 5 10 80 Y I/O SOT23-6, SOIC-8 $0.36 OPA743 Precision, 12V 1,2,4 3.5 12 1.5 7 10 8 7 10 66 30 Y I/O SOT23-5, PDIP-8, $0.95
SOIC-8
OPAy227
Low Noise, Precision, Bipolar
1, 2, 4 5 36 3.8 8 2.3 0.075 0.1 10000 120 3 N N SOIC $1.10 OPAy132 High Speed, FET-Input 1, 2, 4 4.5 36 4.8 8 20 0.5 2 50 96 8 N N SOIC $1.45 OPAy227 Low Noise, Bipolar 1, 2, 4 5 36 3.8 8 2.3 0.075 0.1 10000 120 3 N N SOIC, PDIP $1.10 TLE2027A Low Noise, Bipolar 1 8 38 5.3 13 2.8 0.025 0.2 90000 11 2.5 N N SOIC, PDIP $1.25 OPA627 Precision, High Speed, Difet™ 1 9 36 7.5 16 55 0.1 0.4 1 106 5.2 N N SOIC, PDIP $12.25 OPA381 Precision TIA, CMOS 1 2.7 5.5 1 18 12 0.025 0.03 50 95 110 Y Out MSOP, SON $1.45
OPAy827 Ultra-Low THD+N, 1, 2 8 36 4.5 18 22 0.25 1 3 108 4.5 N N MSOP, SOIC $5.75
High Precision OPA727/8 Precision, e-trim™, CMOS 1 4 12 4.3 20 30 0.15 0.3 100 86 10 Y Out MSOP, SON $0.95 OPAy228 Precision, Low Noise, 1, 2, 4 5 36 3.8 33 10 0.075 0.1 10000 120 3 N N SOIC, PDIP $1.10 OPAy350 Single Supply, Rail-to-Rail, 1, 2, 4 2.7 5.5 7.5 38 22 0.5 4 10 76 5 Y I/O MSOP, SOIC, PDIP $0.85 THS4281 Very Low Power RRIO 1 2.7 15 1 80 35 3.5 4 10 12.5 Y I/O SOT23,MSOP, SOIC $0.95
OPA365 High Speed, Zero-Crossover 1, 2 2.2 5.5 5 50 25 0.5 1 10 100 5 Y In SOT23, SOIC-8 $0.95
OPAy211 Ultra-Low Noise, 1, 2 8 36 3.6 80 27 0.1 0.2 15000 114 1.1 N N MSOP, SOIC, SON $3.95
High Precision OPA637 Precision, Decomp, Difet 1 9 36 7.5 80 135 0.1 0.4 1 106 5.2 N N DIP, SOIC $12.25 OPAy380 Precision, Wideband TIA 1, 2 2.7 5.5 1 85 80 0.025 0.1 50 100 5 at 1MHz Y Out MSOP, SOIC, SSOP $1.95
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Precision Operational Amplifiers
13
Wide Voltage Range Operational Amplifiers (±5V < VS< ±20V) Selection Guide
IQPer Slew VOSV
OS
VNat
VSVSCh. GBW Rate (25°C) Drift IBCMRR 1kHz Rail-
(V) (V) (mA) (MHz) (V/µs) (mV) (µV/°C) (pA) (dB) (nV/ Hz) Single to-
Device Description Ch. (min) (max) (max) (typ) (typ) (max) (typ) (max) (min) (typ) Supply Rail Package(s) Price
*
TLE214x Widest Supply, Low Noise, High Speed 1, 2, 4 4 44 4.5 5.9 45 0.9 1.7 1500000 85 10.5 N N PDIP, SOIC $0.55 TLE202x Low Power, FET-Input 1, 2, 4 4 40 0.3 1.2 0.5 0.6 2 70000 85 17 N N SOIC, TSSOP, PDIP $0.45 TLE2027 Excalibur™, Low Noise, Bipolar 1 8 38 5.3 13/50 2.8 0.1 0.4 90000 100 2.5 N N SOIC, PDIP $0.90 TLE2037 Excalibur, Low Noise, G5, Bipolar 1 8 38 5.3 13/50 2.8 0.1 0.4 90000 100 2.5 N N SOIC, PDIP $0.90 OPAy241 µPower, Precision, Bipolar 1, 2, 4 2.7 36 0.03 0.035 0.01 0.25 0.4 20000 100 45 Y Out SOIC, PDIP $1.15 OPAy251 µPower, Precision, Bipolar 1, 2, 4 2.7 36 0.038 0.035 0.01 0.25 0.5 20000 100 45 Y Out PDIP, SOIC $1.15 OPAy244 µPower, Low Cost, Bipolar 1, 2, 4 2.6 36 0.05 0.43 0.1 1.5 4 25000 84 22 N N SOT-23, SOIC, PDIP $0.55 OPAy137 Low Cost, FET-Input 1, 2, 4 4.5 36 0.27 1 3.5 3 15 100 76 45 N N SOT23, SOIC $0.60 OPAy234 Low Power, Precision, Bipolar 1, 2, 4 2.7 36 0.35 0.35 0.2 0.1 0.5 25000 91 25 N N MSOP, SOIC $1.05 OPAy237 Low Cost, Low Power, Bipolar 1, 2 2.7 36 0.35 1.4 0.5 0.75 2 40000 78 28 N N SOT23, SOIC $0.55 OPAy130 Low Power, FET-Input 1, 2, 4 4.5 36 0.65 1 2 1 2 20 90 16 N N SOIC $1.40 OPAy277 High Precision, Low Power, Bipolar 1, 2, 4 4 36 0.825 1 0.8 0.02 0.1 1000 130 8 N N SON, SOIC $0.85 OPAy131 General Purpose, FET-Input 1, 2, 4 9 36 1.75 4 10 0.75 2 50 80 15 N N SOIC $0.75 OPAy227 Precision, Low Noise, Bipolar 1, 2, 4 5 36 3.8 8 2.3 0.075 0.1 10000 120 3 N N PDIP, SOIC $1.10 OPAy228 Precision, Low Noise, G 5, Bipolar 1, 2, 4 5 36 3.8 33 11 0.075 0.1 10000 120 3 N N PDIP, SOIC $1.10 OPAy132 Wide Bandwidth, FET-Input 1, 2, 4 4.5 36 4.8 8 20 0.5 2 50 96 8 N N SOIC $1.45 OPA124 Low Noise, Precision, Bipolar 1 10 36 7.5 1.5 1.6 0.25 2 1 100 8 N N PDIP $3.95 OPA627 Ultra-Low THD+N, Difet™ 1 9 36 7.5 16 55 0.1 0.4 1 106 5.2 N N PDIP, SOIC $12.25 OPA637 Ultra-Low THD+N,G5, Difet 1 9 36 7.5 80 135 0.1 0.4 1 106 5.2 N N PDIP, SOIC $12.25
OPAy211 Ultra-Low Noise, High-Precision 1, 2 8 36 3.6 80 27 0.1 0.2 15000 114 1.1 N N MSOP, SOIC, SON $3.95 OPAy827 Ultra-Low THD+N, High-Precision 1, 2 8 36 4.5 18 22 0.25 1 3 108 4.5 N N MSOP, SOIC $5.75
TLV240x 2.5V, 1µA, Bipolar 1, 2, 4 2.5 16 0.00095 0.0055 0.0025 1.2 3 300 63 800 Y I/O SOT23, SOIC, PDIP $0.65 TLV238x Low Power, RRIO, Bipolar 1, 2 2.7 16 0.01 0.16 0.06 6.5 1.1 60 72 90 Y I/O SOT, SOIC, PDIP $0.60 TLC220x Precision, Low Noise, Bipolar 1, 2 4.6 16 1.5 1.8 2.5 0.5 0.5 100 85 8 Y Out SOIC, PDIP $1.65 TLC08x Low Noise, Wide Bandwidth, Bipolar 1, 2, 4 4.5 16 2.5 10 16 1 1.2 50 100 8.5 N N MSOP, SOIC, PDIP $0.45 TLV237x 550µA, 3MHz, SHDN 1, 2, 4 2.7 15 0.66 3 2.4 4.5 2 60 57 39 Y I/O SOT23, MSOP $0.43 OPAy703/4 12V, Low Power, SHDN, CMOS 1, 2, 4 4 12 0.2 1 0.6 0.75 4 10 70 45 Y I/O MSOP, SOIC, DIP $1.30 OPAy734/5 12V, Auto-Zero Precision, SHDN 1, 2 2.7 12 0.75 1.6 1.5 0.005 0.05 200 115 150 Y Out SOT23, SOIC $1.25 OPAy743 12V, 7MHz, CMOS 1, 2, 4 3.5 12 1.5 7 10 7 8 10 66 30 Y I/O MSOP, SOIC $0.95 OPAy727/8 20MHz, e-trim™ Precision CMOS 1, 2, 4 4 12 4.3 90 30 0.25 0.3 100 86 23 N N MSOP, SON $0.95 OPAy725/6 Very Low Noise, SHDN 1, 2 4 12 5.5 20 30 3 4 200 88 23 Y Out SOT23, SOIC $0.90
*
Suggested resale price in U.S. dollars in quantities of 1,000. Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
Precision Operational Amplifiers
14
Single-Supply Operational Amplifiers VS(min)
2.7V
Slew V
OS
Offset VN at
V
S
VSIQPer GBW Rate (25°C) Drift IBCMRR 1kHz Rail-
(V) (V) Ch. (MHz) (V/µs) (mV) (µV/°C) (pA) (dB) (nV/ Hz) to-
Device Description/Technology Ch. (min) (max) (mA) (typ) (typ) (max) (typ) (max) (min) (typ) Rail Package Price*
TLV1078 Single 1.8V RRIO, 8MHz, w/SHDN, CMOS 1, 2, 4 1.4 1.6 0.017 0.085 0.032 0.45 111 800 50 68 Out SOT23, SOIC $2.30 OPA349 1µA, Rail-to-Rail, CMOS 1, 2 1.8 5.5 0.002 0.07 0.02 10 10 15 52 I/O SC70, SOT23, SOIC $0.75 OPAy363/4 High CMR,RRIO SHDN, CMOS 1, 2, 4 1.8 5.5 0.75 7 5 0.5 3 10 74 25 I/O SOT23, SOIC $0.60
OPA369 Lowest Power, Zero Crossover 1,2 1.8 5.5 0.001 0.01 0.005 1 2 10 100 160 I/O SC70, SOT23 $0.95
OPA379 1.8V, Ultra-Low Power, Low Offset, 1, 2, 4 1.8 5.5 0.0045 0.09 0.03 1.5 2.7 50 100 80 I/O SC70, SOT23, SOIC $0.75
OPA378 Wide Bandwidth microPower e-trim™ 1,2 1.8 5.5 0.05 1 1 0.1 2 10 90 35 I/O SOT23, MSOP $0.95
OPA333 µPower, Zero-Drift, CMOS 1,2 1.8 5.5 0.025 0.35 0.16 0.01 0.05 200 106 130 I/O SC70, SOT23, SOIC $0.95
OPA376 Low Offset, 5MHz 1, 2, 4 2.2 5.5 0.95 5 4 0.05 2 10 80 7.5 I/O SC70, SOT23, $0.95
MSOP, SO8, TSSOP
TLV224x microPower, Lowest supply 1, 2, 4 2.5 12 0.0012 0.0055 0.002 3.0 3.0 500 55 800 I/O
SOT23, MSOP, SOIC
$0.60
TLV237x Precision, Low Power 1, 2, 4 2.7 15 0.66 3 2.4 4.5 2.0 60 50 39 I/O
SOT23, MSOP, SOIC
$0.47
TLV240x Sub 1µA, Low Offset 1, 2, 4 2.5 16 .00095 0.0055 .0025 1.2 3.0 300 63 800 I/O
SOT23, MSOP,
$0.65
SOIC,
TSSOP
TLV245x Low Offset, General Purpose 1, 2, 4 2.7 6.0 0.035 0.22 0.12 1.5 0.3 5000 70 51 I/O SOT23, MSOP, $0.60
SOIC, TSSOP
TLV246x Wide Bandwidth, Low Noise, Low Power 1, 2, 4 2.7 6.0 0.575 5.2 1.6 1.6 2.0 14000 66 11 I/O SOT23, MSOP, $0.60
SOIC, TSSOP TLV247x Low Noise, General Purpose 1, 2, 4 2.7 6.0 0.75 2.8 1.4 2.2 0.4 50 61 15 I/O SOT23, SOIC $0.60 TLV248x Low Noise, Low Voltage 1, 2, 4 1.8 3.6 .82 8.0 4.3 3.0 8.0 15 50 18 I/O SOT23, SOIC $0.65 OPA348 1MHz, 45µA, RRIO, CMOS 1, 2, 4 2.1 5.5 0.065 1 0.5 5 2 10 70 35 I/O SC70, SOT23, SOIC $0.45
OPAy365 High-Speed, Zero-Crossover, CMOS 1, 2 2.2 5.5 5 50 25 0.5 1 10 100 5 In SOT23, SO8 $0.95
OPA336 µPower, CMOS 1, 2, 4 2.3 5.5 0.032 0.1 0.03 0.125 1.5 10 80 40 Out SOT23, SOIC $0.40 OPA347 Low Power, SC70, CMOS 1, 2, 4 2.3 5.5 0.034 0.35 0.17 6 2 10 70 60 I/O SC70, SOT23, DIP, $0.48
SOIC OPA343 General Purpose, CMOS 1, 2, 4 2.5 5.5 1.25 5.5 6 8 3 10 74 25 I/O SOT23, SOIC $0.60 TLV2770 Single 2.7V High Slew Rate, R/R 1, 2, 4 2.5 5.5 2 4.8 9 2.5 2 100 70 21 Out MSOP, SOIC, DIP $0.70
Output, SHDN, CMOS
OPA244 µPower, Single-Supply, 1, 2, 4 2.6 36 0.05 0.43 0.1 1.5 4 25000 84 22 In SOT23, SOIC, DIP $0.55
MicroAmplifier™ Series, Bipolar
OPA237 Single-Supply, MicroAmplifier 1, 2, 4 2.7 36 0.35 1.4 0.5 0.75 2 40000 78 28 In SOT23, SOIC $0.55
Series, Bipolar OPA241 Single-Supply, µPower, Bipolar 1, 2, 4 2.7 36 0.03 0.035 0.01 0.25 0.4 20000 80 45 Out SOIC, DIP $1.15 OPA300/1 High Speed, Low Noise, SS, CMOS 1 2.7 5.5 12 150 80 5 2.5 5 66 3 Out SOT23, SOIC $1.25 OPA334/5 Zero Offset 0.05µV/°C (max), SHDN, CMOS 1, 2 2.7 5.5 0.35 2 1.6 0.005 0.02 200 110 50 Out SOT23 $1.00 OPA337 120dB AOL, CMOS Input 1, 2 2.7 5.5 1 3 1.2 3 2 10 74 26 Out SOT23, MSOP, $0.43
SOIC, DIP
OPA338 Good Speed/Power, G 5, CMOS 1, 2 2.7 5.5 1 12.5 4.6 3 2 10 74 26 Out SOT23, SOIC $0.43 OPA340 5.5MHz, CMOS 1, 2, 4 2.7 5.5 0.95 5.5 6 0.5 2.5 10 80 25 I/O SOT23, SOIC, DIP $0.80 OPA341/2 Low Cost, Low Power, CMOS 1, 2, 4 2.7 5.5 1 5.5 6 6 2 10 74 32 I/O SOT23, SOIC $0.75 OPA344 Low Power, Low Offset, CMOS 1, 2, 4 2.7 5.5 0.25 1 1 0.5 2.5 10 80 32 I/O SOT23, SOIC, DIP $0.55 OPA345 Low Power, Single-Supply, R/R, 1, 2, 4 2.7 5.5 0.25 4 4 0.5 2.5 10 80 32 I/O SOT23, SOIC $0.55
MicroAmplifier Series, CMOS OPA350 High-Speed, Single-Supply, R/R , CMOS 1, 2, 4 2.7 5.5 7.5 38 22 0.5 4 10 76 5 I/O MSOP, SOIC, DIP $0.85 OPA353 Good ADC Driver, Low THD+N, CMOS 1, 2, 4 2.7 5.5 8 44 22 8 5 10 76 5 I/O SOT23, SOIC $1.00 OPA373/4 6.5MHz, 585µA, Shutdown, CMOS 1 2.7 5.5 0.75 6.5 5 5 3 10 80 30 I/O SOT23, SOIC $0.36 THS4281 High Speed, Low Power 1 2.7 15 1 40 35 3.5 7 10 92 12.5 I/O
SOT23, MSOP, SOIC
$0.95
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
High-Speed Amplifiers
15
TI develops high-speed signal conditioning products using state-of-the-art processes that give leading-edge performance. Used in high-speed signal chains and analog-to-digital drive circuits, high-speed amps are broadly defined as any amplifier having at least 50MHz of bandwidth and at least 100V/µs slew rate. High-speed amps from TI come in several different types and supply voltage options.
Design Considerations
Voltage-feedback type—the most
commonly used amp and the basic building block of most analog signal chains such as gain blocks, filtering, level shifting, buffering, etc. Most voltage-feedback amps are unity­gain stable, though some are decompensated to provide wider bandwidth, faster slew rate and lower noise.
Current-feedback type—most commonly
seen in video or DSL line driver applications, or designs where extremely fast slew rate is needed.
Fully differential amplifier (FDA)—the fully
differential input and output topology has the primary benefit of reducing even order harmonics, thereby reducing total harmonic distortion. The FDA also rejects common-mode components in the signal and provides a larger output swing to the load relative to single­ended amplifiers. Fully differential amplifiers are well-suited to driving analog-to-digital converters. A V
COM
pin sets the output common-mode voltage required by newer, single-supply, ADCs.
FET-Input (or CMOS) amplifiers—have higher
input impedance than typical bipolar amps and are more useful to interfacing to high impedance sources, such as photodiodes in transimpedance circuits.
Video amplifiers—can be used in a
number of different ways, but generally are in the signal path for amplifying, buffering, filtering or driving video lines. The specifica­tions of most interest are differential gain and differential phase. Current-feedback amps are typically used in video applications, because of their combination of high slew rate and excellent output drive at low quiescent power.
Fixed and variable gain—these amps have
either a fixed gain, or a variable gain that can be set either digitally with a few control pins, or linearly with a control voltage. Fixed-gain amplifiers are fixed internally with gain setting resistors. Variable gain amplifiers can have different gain ranges, and can also be differential input and/or output.
Packaging—high-speed amplifiers typically
come in surface-mount packages, because parasitics of DIP packages can limit perform­ance. Industry standard surface-mount packages (SOIC, MSOP, TSSOP and QFN) handle the highest speed requirements. For band­widths approaching 1GHz and higher, the QFN package decreases inductance and capacitance.
Evaluation boards—high-speed amps have an
associated fully populated evaluation module (EVM) or an unpopulated printed circuit board (PCB). EVMs are a very important part of high-speed amplifier evaluation, since layout is critical to design success. To make layout simple, Gerber files for the EVMs are available. See page 101 for more information.
High-speed amplifiers selection tree.
High-Speed < 500MHz (GBW Product)
THS4001 THS4011/4012 THS4051/4052 THS4081/4082 THS4041/4042 OPA820/OPA4820 OPA2613 OPA2614 OPA842 OPA2652 OPA2822 THS4271 OPA690/2690/3690
OPA890/OPA2890 OPA2889
Fully Differential
THS4120/4121 THS4130/4131 THS4140/4141 THS4500/4501 THS4502/4503 THS4509 THS4508 THS4511 THS4513
THS4520
Very High-Speed > 500MHz (GBW Products)
OPA843 OPA847 OPA846/OPA2846 THS4271 THS4302
Voltage Feedback
FET or CMOS Input
OPA656 OPA657 (G > 7) OPA355/2355/3355 OPA356/2356 OPA354/2354/4354 OPA357/2357 OPA358/OPA360/OPA361 OPA300/OPA2300 OPA301/OPA2301 THS4631 OPA380/OPA2380
Low Voltage 3.3V
THS4120/21 OPA355/2355/3355 OPA356/2356 OPA354/2354/4354 OPA357/2357 OPA300/OPA2300 OPA301/OPA2301 OPA830/OPA2830/OPA4830 OPA832/OPA2832/OPA3832
Rail-to-Rail Input or Output
OPA355/2355/3355 OPA356/2356 THS4222/4226 OPA354/2354/4354 OPA357/2357 OPA358/OPA360/OPA361 OPA830/OPA2830/OPA4830 OPA832/OPA2832/OPA3832
Low Noise 3nV/ Hz
THS4031/4032 OPA2822 THS4130/4131 THS4271 OPA300/OPA301 OPA820/OPA4820 OPA842 OPA843 (G > 3) OPA846/OPA2846 (G > 7) OPA847 (G > 12) OPA358 OPA820/OPA4820
Variable and Fixed Gain
THS7530 VCA2612/2613/2614/2616/2618 VCA810 VCA8613/VCA8617 VCA2615/VCA2617 OPA860 OPA861 BUF602 BUF634 OPA615 OPA693/OPA3693
Voltage Limiting Output
OPA698 OPA699 (G 4)
Current Feedback
General Purpose
+5V to ±5V Operational
OPA683/2683 OPA684/2684/3684/4684 OPA691/2691/3691 OPA692/3692 (G = 2 or ±1) OPA2677 THS3201/02 OPA694/OPA2694 OPA2674
General Purpose
±5V to ±15V Operational
THS3112/15 THS3122/25 THS3110/11 THS3120/1 THS3091/95 THS3092/96 THS6184
Very High-Speed > 500MHz
OPA695 THS3201/THS3202 OPA694/OPA2694
Preview devices appear in BLUE.
New devices appear in RED.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
High-Speed Amplifiers
16
Low-Distortion, Fully Differential Amplifier with Rail-to-Rail Outputs
THS4520
Get samples, datasheets and EVMs at: www.ti.com/sc/device/THS4520
THS4520 as differential ADC driver.
Key Features
• Settling time: 7ns to 0.1% (2V step, G=2V/V, RL = 200Ω)
• Slew rate: 570V/µs
• Centered input common-mode range
• Output common-mode control
• Small-signal bandwidth: 450MHz (AV=+2)
• Output current: 105mA
• Input voltage noise: 2nV/ Hz (f>10kHz)
• HD2: –115dBc at 100kHz, (8VPP, G=2V/V, RL=1kΩ)
• HD3: –123dBc at 100kHz, (8VPP, G=2V/V, RL=1kΩ)
• Power-down quiescent current: 15µA
• Packaging: QFN-16
Applications
• 5V and 3.3V data acquisition systems
• High linearity ADC amplifier
• Wireless communication
• Test and measurement
• Voice processing systems
The THS4520 is a fully differential op amp with rail-to-rail output that operates from 3.3V or 5V supply. The independent output common-mode control makes it well-suited for dc-coupled, high-accuracy data acquisition systems. With its low distortion, the THS4520 is ideal to drive TI’s industry-leading, 16-bit SAR analog-to-digital converters.
Single and Triple 2:1 High-Speed Video Multiplexers
OPA875, OPA3875
Get samples, datasheets and EVMs at: www.ti.com/sc/device/OPA875 and www.ti.com/sc/device/OPA3875
OPA3875 functional block diagram.
Key Features
• Small-signal bandwidth: 700MHz (AV=+2)
• Bandwidth: 425MHz, 4V
PP
• Gain flatness: 0.1dB to 200MHz
• Channel switching time: 4ns
• Switching glitch: 40mV
PP
• Slew rate: 3100V/µs
• Gain accuracy: 2.0V/V ±0.4%
• 0.025%/0.025° differential gain/phase
• Packaging: SO-8 or MSOP-8 (OPA875) or SSOP-16 (OPA3875)
Applications
• RGB or Y/Pb/Pr video switching
• Analog routing switcher
• LCD projector input select
• High resolution monitors
• Broadcast video processing
• Triple high speed ADC input mux
The OPA875 and OPA3875 are high-speed, very wideband, single-channel and triple-channel, 2:1 multiplexers. Gain accuracy and switching glitch of 40mV
PP
are improved over earlier solutions using a new (patented) input stage switching approach. System power may be optimized using the enable feature for the OPA3875. Using this, the OPA3875 powers down to a mere 0.9mA total supply current. The fixed gain-of-2 output stage is ideal for driving double terminated video loads directly. Where a single channel of the OPA3875 is required, consider the OPA875.
500
500
V
V
i
500
CM
THS4520
500
16-bit SAR
ADC
+5V
75
RGB
Channel 0
RGB
Channel 1
75
75
75
75
OPA3875
(Patented)
75
75
75
RGB Out
75
–5V EN
Channel
Select
RGB Switching
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
High-Speed Amplifiers
17
High-Speed Amplifiers Selection Guide
Distortion
Settling THD 1Vpp, G = 2, I
Q
BW BW GBW Time 2Vpp 5MHz Differential Per
Supply at A
CL
G = +2 Product Slew 0.1% G = 1 HD
2
HD
3
V
N
V
OS
I
B
Ch. I
OUT
Voltage A
CL
(MHz) (MHz) (MHz) Rate (ns) 1MHz (dBc) (dBc) Gain Phase (nV/ Hz) (mV) (µA) (mA) (mA)
Device Ch. SHDN (V) (min) (typ) (typ) (typ) (V/µs) (typ) (dB) (typ) (typ) (typ) (%) (°) (typ) (max) (max) (typ) (typ) Package(s) Price
*
Voltage Feedback (Sorted by Ascending Gain Bandwidth Product)
THS4051/52 1, 2 N ±5, ±15 1 70 38 50 240 60 –82 –66 –79 0.01 0.01 14 10 6 8.5 100 SOIC, MSOP PowerPAD™ $0.95
THS4281 1 N
+2.7, ±5, +15
1 90 40 35 78 0.05 0.25 12.5 30 0.5 750 30 SOT23-5, MSOP, SOIC $0.95
OPA2889 2 Y 5, ±5 1 115 60 75 250 25 –74 –76 –79 0.06 0.04 8.4 5 0.75 0.46 40 MSOP, SOIC $1.20
THS4011/12 1, 2 N ±5, ±15 1 290 50 100 310 37 –80 –65 –80 0.006 0.01 7.5 6 6 7.8 110 SOIC, MSOP PowerPAD $1.45
THS4081/82 1, 2 N ±5, ±15 1 175 70 100 230 43 –64 –67 –52 0.01 0.05 10 7 6 3.4 85 SOIC, MSOP PowerPAD $1.20
OPAy354/57 1, 2, 4 Y 2.5 to 5.5 1 250 90 100 150 30 –75 –83 0.02 0.09 6.5 8 50pA 4.9 100 SOT23, SOIC PowerPAD $0.75
OPAy890 1, 2 Y 5, ±5 1 275 92 120 400 10 –88 –82 –90 0.05 0.03 8 6 1.6 2.25 40 MSOP, SOIC $0.80
OPAy830 1, 2 ,4 N +3, +5, ±5 1 310 120 110 600 42 –82 –71 –77 0.07 0.17 9.5 1.5 10 4.25 150 SOT23, SOIC $0.75
THS4221/22 1, 2 N 3, 5, ±5, 15 1 230 100 120 975 25 –100 –79 –92 0.007 0.007 13 10 3 14 100 SOIC, MSOP PowerPAD $1.90
OPA2613 2 N 5, ±6 1 230 110 125 70 40 –94 1.8 1 10 6 350 SOIC, SOIC PowerPAD $1.55
OPAy300/301 1 Y 2.7 to 5.5 1 400 80 150 80 30 –74 –78 0.01 0.1 3 5 0.5 12 40 SOT23, SOIC $1.25
OPA842 1 N ±5 1 350 150 200 400 15 –107 –100 –104 0.003 0.008 2.6 1.2 35 20.2 100 SOT23, SOIC $1.55
OPA2652 2 N ±5 1 700 200 200 335 –100 –76 –66 0.05 0.03 8 7 15 5.5 140 SOT23, SOIC $1.15
OPAy356 1, 2 N 2.5 to 5.5 1 450 100 200 300 30 –81 –93 0.02 0.05 5.8 9 50pA 8.3 60 SOT23, SOIC, MSOP $0.70
OPAy355 1, 2, 3 Y 2.5 to 5.5 1 450 100 200 300 30 –81 –93 0.02 0.05 5.8 9 50pA 8.3 60 SOT23, SOIC, MSOP, TSSOP $0.70
THS4031/32 1, 2 N ±5, ±15 1 275 100 220 100 60 –72 –77 –67 0.015 0.025 1.6 2 6 8.5 90 SOIC, MSOP PowerPAD $1.65
OPA2822 2 N 5, ±5 1 400 200 220 170 32 –96 –81 –91 0.02 0.03 2 1.2 12 4.8 150 SOIC, MSOP $1.35
OPA656 1 N ±5 1 400 185 240 290 8 –92 –80 –89 0.01 0.01 6 2 20pA 25 60 SOT23, SOIC $3.35
OPA698 1 N 5, ±5 1 450 215 250 1100 –93 –82 –88 0.012 0.008 5.6 5 10 15.5 120 SOIC $1.90
OPAy820 1, 4 N 5 to ±5 1 800 240 280 240 18 –84 –90 –110 0.01 0.03 7.5 0.75 17 5.6 110 SOIC, SOIC PowerPAD $0.90
OPA2614 2 N 5, ±6 2 180 180 290 145 35 –85 –72 –81 1.8 1 14.5 6.5 350 SOIC, SOIC PowerPAD $1.55
OPAy690 1, 2, 3 Y 5, ±5 1 500 220 300 1800 8 –91 –78 –78 0.06 0.03 5.5 4 8 5.5 190 SOT23, SOIC, SSOP $1.35
THS4271/75 1 Y 5, ±5, 15 1 1400 390 400 1000 25 –110 –100 –94 0.007 0.004 3 10 15 22 160 SOIC, MSOP PowerPAD $2.25
OPA843 1 N ±5 3 500 800 1000 7.5 –105 0.001 0.012 2 1.2 35 20.2 100 SOT23, SOIC $1.60
THS4304 1 N 3 to ±5 1 3000 1000 870 1000 5 –92 –92 –75 2.4 4 6 18 100 SOT23, SOIC, MSOP $1.75
OPA699 1 N 5, ±5 4 260 1000 1400 7 0.012 0.008 4.1 5 10 15.5 120 SOIC $1.95
OPA657 1 N ±5 7 350 1600 700 10 4.8 1.8 20pA 14 70 SOT23, SOIC $3.80
OPAy846 1, 2 N ±5 7 500 1750 625 10 0.02 0.02 1.2 0.6 19 12.6 80 SOT23, SOIC $1.70
OPA847 1 Y ±5 12 600 3800 950 10 0.85 0.5 39 18.1 75 SOT23, SOIC $2.00
Current Feedback (Sorted by Ascending Gain of +2 Bandwidth)
THS3110/11 1 Y ±5, ±15 1 100 90 1300 27 –78 –60 –61 0.01 0.03 3 6 20 4.8 260 SOIC, MSOP PowerPAD $1.30
THS3112/15 2 Y ±5, ±15 1 110 110 1550 63 –78 –77 –80 0.01 0.011 2.2 8 23 4.9 270 SOIC, SOIC PowerPAD $2.00
THS3120/1 1 Y ±5, ±15 1 130 120 1500 11 –53 –65 –53 0.007 0.018 2.5 6 3 7 475 SOIC, MSOP PowerPAD $1.85
THS3122/25 2 Y ±5, ±15 1 160 128 1550 64 –78 –70 –77 0.01 0.011 2.2 6 23 8.4 440 SOIC, SOIC PowerPAD $2.95
OPAy683 1, 2 Y 5, ±5 1 200 150 540 –84 –70 –85 0.06 0.03 4.4 3.5 4 0.94 110 SOT23, SOIC $1.20
OPAy684
1, 2, 3, 4
Y 5, ±5 1 210 160 820 –77 –73 –77 0.04 0.02 3.7 3.5 35 1.7 120 SOT23, SOIC, TSSOP $1.35
OPA2677 2 N 5, ±6 1 220 200 2000 –87 –75 –85 0.03 0.01 2 4.54 30 9 500 SOIC, SOIC PowerPAD, QFN $1.65
THS3091/5 1 Y ±5, ±15 1 235 210 5000 42 –72 –79 –88 0.013 0.02 2 3 15 9.5 280 SOIC, SOIC PowerPAD $2.45
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
High-Speed Amplifiers
18
High-Speed Amplifiers Selection Guide
Distortion
Settling THD 1Vpp, G = 2, I
Q
BW BW GBW Time 2Vpp 5MHz Differential Per
Supply at A
CL
G = +2 Product Slew 0.1% G = 1 HD
2
HD
3
V
N
V
OS
I
B
Ch. I
OUT
Voltage A
CL
(MHz) (MHz) (MHz) Rate (ns) 1MHz (dBc) (dBc) Gain Phase (nV/ Hz) (mV) (µA) (mA) (mA)
Device Ch. SHDN (V) (min) (typ) (typ) (typ) (V/µs) (typ) (dB) (typ) (typ) (typ) (%) (°) (typ) (max) (max) (typ) (typ) Package(s) Price
*
Current Feedback (Sorted by Ascending Gain of +2 Bandwidth) (Continued)
THS3092/6 2 Y ±5, ±15 1 235 210 5000 42 –72 –79 –88 0.013 0.02 2 4 15 9.5 280 SOIC, SOIC PowerPAD™ $3.90
OPA2674 2 Y 5, ±6 1 250 225 2000 –87 –73 –82 0.03 0.01 2 4.5 30 9 500 SOIC, SOIC PowerPAD $1.70
OPAy691 1, 2, 3 Y 5, ±5 1 280 225 2100 8 –93 –77 –79 0.07 0.02 1.7 2.5 35 5.1 190 SOT-23, SOIC, SSOP $1.45
OPAy694 1, 2 N ±5 1 1500 690 1700 13 –92 –93 0.03 0.015 2.1 4.1 18 5.8 80 SOT-23, SOIC $1.25
THS3201/02 1, 2 N ±5, ±7.5 1 1800 850 6200 20 –85 –85 –95 0.006 0.03 1.65 3 13 14 115 MSOP, SOT23, SOIC $1.60
OPA695 1 Y 5, ±5 1 1700 1400 4300 –86 –88 –95 0.04 0.007 1.8 3 30 12.9 120 SOT23, SOIC $1.35
Fully Differential Amplifiers (Sorted by Ascending Gain Bandwidth Product)
THS4130/31 1 Y 5, ±5, ±15 1 150 90 180 52 78 –97 –60 –75 1.3 2 6 12.3 85 SOIC, MSOP PowerPAD $2.80
THS4502/03 1 Y 5, ±5 1 370 175 280 2800 6.3 –100 –83 –97 6 7 4.6 23 120 SOIC, MSOP PowerPAD $4.00
THS4520 1 Y 3 to 5 1 600 400 1200 520 7 –100 2 25 11 13 105 QFN $2.45
THS4511 1 Y 3, 5 1 1600 1400 2000 4900 3.3 –97 2 5.2 15.5 39.2 61 QFN $3.45
THS4513 1 Y 3, 5 1 1600 1400 2000 5100 16 –97 2.2 5.2 13 37.7 96 QFN $3.25
THS4508 1 Y 3, 5 2 2000 2000 3000 6400 2 –98 2.3 5 15.5 39.2 61 QFN $3.95
THS4509 1 Y 3, 5 2 2000 2000 3000 6600 2 –98 1.9 5 13 37.7 96 QFN $3.75
Fixed and Variable Gain (Sorted by Ascending A
CL
Bandwidth)
VCA810 1 N ±5 0.01 30 30 350 30 –35 –71 –35 2.4 0.25 10 20 60 SOIC $5.75
OPAy832 1, 2 N 2.8 to ±5 1 90 80 350 45 –64 –66 –73 0.1 0.16 9.2 7 10 4.25 120 SOT23, SOIC $0.70
BUF634 1 N 5, ±5, ±15 1 180 2000 200 0.4 0.1 4 100 20 15 250 SOIC $3.05
OPAy692 1, 3 Y 5, ±5 1 280 225 2000 8 –93 –70 –74 0.07 0.02 1.7 2.5 35 5.1 190 SOT23, SOIC, SSOP $1.15
THS7530 1 Y 5 4 300 1750 –51 –54 –50 1.27 30 35 20 TSSOP PowerPAD $3.85
BUF602 1 N 3.3, 5, ±5 1 1200 8000 0.15 0.04 5.1 30 7 5.8 60 SOT23,SOIC $0.85
OPAy693 1 Y 5, ±5 1 1400 700 2500 12 –87 –74 –87 0.03 0.01 1.8 2 35 13 120 SOT23, SOIC $1.30
THS4303 1 Y 3, 5 10 1800 5500 2.5 4.25 10 34 180 MSOP PowerPAD $2.10
THS4302 1 Y 3, 5 5 2400 5500 2.8 4.25 10 37 180 MSOP PowerPAD $2.10
JFET-Input and CMOS Amplifiers (Sorted by Ascending Gain Bandwidth Product)
OPA358 1 Y 2.7 to 3.3 1 100 10 80 55 35 0.3 0.7 6.4 6 50pA 7.5 50 SC70 $0.45
OPAy380 1, 2 N 2.7 to 5.5 1 100 10 90 80 67 0.025 50pA 7.5 50 MSOP, SOIC $1.95
OPAy354 1, 2, 4 N 2.5 to 5.5 1 250 90 100 150 30 –75 –83 0.02 0.09 6.5 8 50pA 4.9 100 SOT23, SOIC PowerPAD $0.67
OPAy357 1, 2 Y 2.5 to 5.5 1 250 90 100 150 30 –75 –83 0.02 0.09 6.5 8 50pA 4.9 100 SOT23, SOIC PowerPAD $0.67
OPAy300/301 1,2 Y 2.7 to 5.5 1 80 150 80 30 –74 –78 0.01 0.1 3 5 5pA 12 40 SOT-23, SOIC $1.25
OPAy355 1, 2, 3 Y 2.5 to 5.5 1 450 100 200 300 30 –81 –93 0.02 0.05 5.8 9 50pA 8.3 60 MSOP $0.69
OPAy356 1, 2 N 2.5 to 5.5 1 450 100 200 300 30 –81 –93 0.02 0.05 5.8 9 50pA 8.3 60 SOT23, SOIC $0.69
OPA656 1 N ±5 1 400 185 240 290 8 –92 –80 –89 0.01 0.01 6 2 2pA 25 60 SOT23, SOIC $3.35
OPA657 1 N ±5 7 350 1600 700 10 –83 –73 –100 4.8 1.8 2pA 14 70 SOT23, SOIC $3.80
xDSL Drivers and Receivers (Sorted by Ascending Output Current)
THS4032 2 N ±5, ±15 1 275 100 220 100 60 –72 –77 –67 0.015 0.025 1.6 2 6 8.5 90 SOIC, MSOP PowerPAD™ $2.60
OPA4684 4 N +5, ±6 1 250 170 750 –79 –80 –80 0.04 0.02 3.7 3.5 35 1.7 120 TSSOP, SOIC $3.30
OPA2822 2 N 5, ±5 1 400 200 220 170 32 –96 –81 –91 0.02 0.03 2 1.2 12 4.8 150 SOIC, MSOP $1.35
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
High-Speed Amplifiers
19
High-Speed Amplifiers Selection Guide
Distortion
Settling THD 1Vpp, G = 2, I
Q
BW BW GBW Time 2Vpp 5MHz Differential Per
Supply at A
CL
G = +2 Product Slew 0.1% G = 1 HD
2
HD
3
V
N
V
OS
I
B
Ch. I
OUT
Voltage A
CL
(MHz) (MHz) (MHz) Rate (ns) 1MHz (dBc) (dBc) Gain Phase (nV/ Hz) (mV) (µA) (mA) (mA)
Device Ch. SHDN (V) (min) (typ) (typ) (typ) (V/µs) (typ) (dB) (typ) (typ) (typ) (%) (°) (typ) (max) (max) (typ) (typ) Package(s) Price
*
xDSL Drivers and Receivers (Sorted by Ascending Output Current) (Continued)
THS6022 2 N ±5, ±15 1 210 200 1900 70 –75 –55 –58 0.04 0.06 1.7 5 9 7.2 250 TSSOP $2.75
OPA2613 2 N 5, ±6 1 230 110 125 70 40 –94 0.01 0.01 1.8 1 10 6 350 SOIC, SOIC PowerPAD™ $1.55
OPA2614 2 N 5, ±6 2 180 180 290 145 35 –75 92 110 1.8 1 14.5 6.5 350 QFN, SOIC, SOIC PowerPAD $1.55
THS6184 4 Y ±5, ±16 1 50 400 –83 –83 –61 2.9 15 15 4.2 400 QFN, TSSOP $3.75
OPA2674 2 Y 5, ±6 1 260 2000 –82 –93 0.03 0.01 2 2 10 9 500 SOIC $1.70
OPA2677 2 N 5, ±6 1 220 200 2000 –87 –75 –85 0.03 0.011 2 4.5 30 9 500 SOIC, SOIC PowerPAD $1.65
THS6132 2 Y ±5, ±15 1 80 70 300 –83 –78 –70 3.5 1 1 6.4 500 QFN TQFP PowerPAD $3.95
THS6182 2 Y ±5, ±16 1 100 80 450 –88 –72 –70 3.2 20 15 11.5 600 QFN, SOIC PowerPAD $2.95
Transimpedance Amplifiers (Sorted by Ascending Gain Bandwidth Product)
OPAy380 1, 2 N 2.7, 5.0 1 90 45 90 80 2000 5.8 0.025 50pA 6.5 50 MSOP, SOIC $1.95
OPA656 1 N ±5 1 400 185 240 290 8 –92 –80 –89 0.01 0.01 6 2 20pA 25 60 SOT23, SOIC $3.35
OPA657 1 N ±5 7 350 1600 700 10 –83 –73 –100 4.8 1.8 20pA 14 70 SOT23, SOIC $3.80
OPAy846 1, 2 N ±5 7 500 1750 625 10 –105 0.02 0.02 1.2 0.6 19 12.6 80 SOT23, SOIC $1.70
OPA847 1 Y ±5 12 600 3800 950 10 –110 0.85 0.5 39 18.1 75 SOT23, SOIC $2.00
Multi-Channel, Fixed-Gain Preamps
MPA4609 4 N 5 190 90 150 0.65 0.2 12.5 TQFP $3.95
OPAy875 1, 3 Y ±3 to ±6 2 700 700 3100 3 –69 –90 0.025 0.025 6.7 7 ±18 11 ±70 MSOP, SOIC $1.45
OPA4872 1 Y ±3.5 to ±6 1 1100 500 2300 14 –75 –62 –86 0.035 0.005 4.5 5 18 10.6 ±75 SOIC $2.15
Voltage-Limiting Amplifiers
OPA698 1 N 5, ±5 1 450 215 250 1100 –93 –82 –88 0.012 0.008 5.6 5 10 15.5 120 SOIC $1.90
OPA699 1 N 5, ±5 4 260 1000 1400 0.012 0.008 4.1 5 10 15.5 120 SOIC $1.95
RF/IF Amplifiers
THS9000/1 1 N 3, 5 5.8 500 0.6 Var MicroMLP, SOT23 $1.05
DC Restoration (Sample/Hold Amplifier)
OPA615 1 N ±5 1 710 2500 –62 –47 4.6 4 1 13 5 SOIC, MSOP $4.25
Filtered Amplifiers
THS7303 3 Y 2.7 to 5.5
9/16/35/
40/75/ –59/–62/ 0.13 0.55 35 6 70 TSSOP $1.65
190
155/320 –58/–60
THS7313 3 Y 2.7 to 5.5 8 35 –62 0.07 0.12 35 6 70 TSSOP $1.20
THS7314 3 N 2.85 to 5.5 8.5 36 –66 0.1 0.1 390 5.3 80 SOIC $0.40
THS7316 3 N 2.85 to 5.5 36 80 –56 0.1 0.1 390 5.8 80 SOIC $0.55
THS7318 3 Y 2.85 to 5 20 80 –73 0.05 0.03 3.5 NanoFree™ Wafer Scale $3.75
THS7327 3 Y 2.7 to 5.5 500 1300 0.3 0.45 65 33 80 TQFP $3.35
THS7353 3 Y 2.7 to 5.5
9/16/35/
40/70/ –64/–73/ 0.15 0.3 20 5.9 70 TSSOP $1.65
150
150/300 –70/–71
THS7315 3 Y 2.85 to 5.5 8.5 37 –62 0.2 0.3 420 5.2 90 SOIC $0.50
THS7347 3 Y 2.7 to 5.5 500 1300 –58 0.05 0.1 15 26.8 80 TQFP $2.75
Transconductance Amplifiers
OPA860 1 N ±5 1 470 470 3500 –77 –79 2.4 5 11.2 15 SOIC $2.25
OPA861 1 N ±5 1 80 400 900 –68 –57 2.4 1 5.4 15 SOT23, SOIC $0.95
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
20
Amplifiers
Video Amplifiers
New devices appear in RED.
rail-to-rail output that swings within 100mV of the rails to allow for either AC or DC-coupling. The THS7347 incorporates a 500MHz band­width, 1200V/µs unity-gain buffer making it ideal for driving ADCs and video decoders, where the THS7327 offers an integrated 5th order Butterworth anti-aliasing filter on each channel. These filters improve image quality by eliminating DAC images.
Portable Video— Successfully designing a
high-performance video system into low voltage portable applications requires careful attention to many details. Portable applications impose very challenging technical requirements beyond those required in typical video applications and demand particular trade-offs in performance, power consumption, printed circuit board space and cost. A DC­coupled solution with integrated gain, low-pass filter, level-shifter, and shutdown solves these challenges while maintaining good video performance and eliminates the need for large, expensive discrete components. The standard definition (SDTV) THS7314 and high definition (HDTV) THS7316 easily meet these trade-offs by maintaining outstanding low-cost performance while the EDTV/SDTV line driver THS7318, with it’s small profile wafer scale package, is ideal for extremely board space sensitive applications.
The new low power THS7315 is a fully­integrated SDTV video amplifier which features a rail-to-rail output stage allowing for both AC and DC line driving. The low 15.6mA quiescent current at 3.3V makes it an excellent choice for USB powered or other power sensitive video applications.
Video amplifiers—can be used in a number
of different ways, but generally are in the signal path for amplifying, buffering, filtering or driving video lines. The specifications of most interest for composite video signals, or CVBS, are differential gain and differential phase. For other video signals, such as Y’P’bP’r or RGB, bandwidth – both small signal and large signal, and slew rate are of most importance. Noise and DC accuracy is also considered important in some high-end applications.
The traditional Voltage-Feedback (VFB) ampli­fiers are widely used because of their ability to be configured for almost any situation. Many VFB amplifiers have the ability to accept input signals going to the negative rail (or ground), allowing use in many single-supply systems. Additionally, many VFB amplifiers offer rail-to­rail outputs offering the widest dynamic range possible on small supplies. Traditional VFB amplifiers (non-RRO) designed for video offer the ability to have very high slew rates, wide bandwidths, low noise, and very good DC characteristics. Current-feedback amps are commonly found in high-end video applications, because of their combination of high slew rate and excellent output drive at low quiescent power.
High-Speed Video Multiplexers
Numerous video applications, such as RGB or YPbPr video switching, video routers, high resolution monitors, etc. are creating an increased need for high-speed switching with multiplexers (muxes). With the increased need to reduce board space are also the demands that these muxes provide low power consumption as well as increased functionality, such as the ability to drive 75-Ohms or 150-Ohms while maintaining good video
performance specifications. These specifications include low crosstalk, fast settling, gain flatness, low switching glitch along with low differential gain and differential phase. The new OPA875 and OPA3875 single­and triple 2:1 multiplexers along with the new OPA4872, 4:1 multiplexer easily meets these requirements. Using a new patented input stage switching approach, the switching glitch is much improved over earlier solutions. This technique uses current steering as the input switch while maintaining an overall closed­loop design.
TI brought new technology to the market with the introduction of the THS7303, THS7313 and THS7353. These three-channel devices were the first to offer full I2C programmability of all functions independently for each channel, which provides the designer the flexibility to configure a video system as required or on-the­fly, without the need for hardware upgrades or modifications. The devices are designed with integrated Butterworth filters to provide all the analog signal conditioning required in video applications such as set-top boxes, digital televisions, personal video recorders/DVD readers and portable USB devices. These highly integrated devices provide space savings as a result of the high levels of integration and advanced package technology.
The strong combination of integrated features and optimized design make TI’s THS7327 and new THS7347, well suited for use in projectors and professional video systems. Both 3-channel RGBHV video buffers offer a monitor pass-thru amplifier, unity gain buffer, 2:1 input mux, I2C control of all functions on each channel, HV synch paths with Adjustable Schmitt Trigger, selectable bias modes and
Video Amplifiers
Voltage Feedback
OPAy354 (2.5V to 5.5V) OPAy355 (2.5V to 5.5V) OPAy356 (2.5V to 5.5V) OPAy357 (2.5V to 5.5V) THS4281 (2.7, ±7.5V) OPAy358 (2.7V to 3.3V) OPA360 (2.7V to 3.3V) OPA361 (2.7V to 3.3V) OPAy830 (2.8V, ±5.0) OPAy832 (2.8V, ±5) OPAy690 (5V, ±5V) OPA842 (5V, ±5V) OPAy820 (5V, ±5V)
Current Feedback Filtered Amplifiers
OPAy694 (±5V) OPAy691 (5V, ±5V) OPAy684 (5V, ±5V) OPAy683 (5V, ±5V) OPAy692 (5V, ±5V) OPAy693 (5V, ±5V) OPAy695 (5V, ±5V)
OPA360 (2.7V to 3.3V) OPA361 (2.5V to 3.3V) THS7303 (2.7V to 5.5V) THS7313 (2.7V to 5.5V) THS7353 (2.7V to 5.5V) THS7327 (2.7V to 5.5V)
THS7314 (2.85V to 5.5V) THS7315 (2.85V to 5.5V) THS7316 (2.85V to 5.5V) THS7318 (2.85V to 5V) THS7347 (2.7V to 5.5V)
Special Functions
OPA615 (±5V) BUF602 (±5V, +5V, +3.3V) OPA861 (±5V)
OPAy875 (±5V) OPA4872 (±5V)
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Video Amplifiers
21
3-Channel RGBHV Video Buffer with I2C Control
THS7327
Get samples, datasheets and evaluation modules at: www.ti.com/sc/device/THS7327
3.3V single-supply AC-input/AC-video output system w/SAG correction (1 of 3 channels shown).
Key Features
• Three video amplifiers for CVBS, S-Video, EDTV, HDTV and RGB
• HV sync paths with adjustable Schmitt Trigger
• 2:1 input MUX
•I2C control of all functions/all channels
• Integrated low-pass filters on ADC buffer path
• Selectable input bias modes
• Monitor pass-through function
Applications
Projectors
• Digital TVs
• Professional video systems
• Set-top boxes
•DLP® projectors/televisions
The THS7327 integrates three analog video channels and two digital channels for HV sync, simplifying system design and reducing component count. The three analog channels incorporate unity gain buffering and monitor feed-through paths to handle all standard video formats, including RGB, YPbPr and CVBS. The amplifier’s I
2
C control provides easy system configuration and flexibility with programmable functions that include: integrated 2:1 input multiplexers which enable switching of multiple video sources; fifth-order anti-aliasing filters enable use with multiple video standards; and input bias modes.
3-Channel SDTV Buffer with 5th-Order, Low-Pass Filter Compatible with DaVinci™ Processors
THS7315
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/THS7315
3.3V single-supply DaVinci™ interface with DC output coupled video line driver.
Key Features
• 5-pole Butterworth low-pass filter at 8.5MHz
• Flexible input configuration
• Gain of 5.2V/V (14.3dB) compatible with DaVinci™, DM2xx, DM3xx, DM4xx and OMAP™ processors
• Low total quiescent current:
15.6mA at 3.3V
• Rail-to-rail output swings within 100mV from the rails
Applications
• Set-top-box DAC output buffering
• DVDR/PVR DAC output buffering
• Portable/USB powered systems
THS7315 is a low-power, single-supply (3V to 5V), 3-channel integrated video buffer. It incorporates a fifth-order Butterworth filter which can be used as a DAC reconstruction filter or an ADC anti-aliasing filter. The 8.5MHz filter is a perfect choice for SDTV video which includes Composite (CVBS), S-Video, Y’U’V’, G’B’R’(R’G’B’), and Y’
P
’BP’R480i/576i. Its rail-to-rail output
stage allows for both AC and DC line driving.
THS7327
THS7315
0.1µF
75
0.1µF
75ΩΩ
In A
In B
2:1
DC
+ Offset
DC
SDA
Input 1
Input 2
AC-
Bias
SCL
X1
AC
Sync
TIP
Clamp
Bypass
LPF
9/16/35/
75MHz
Disable
= Open
1k
3.3V
0.1µF
47µF
Out
33µF
675
SAG
3.3V
878
150
75
Monitor
Output
ADC
75
+1.8V
CVBS
S-Video
75
OUT
Y’
C’
OUT
OUT
DAC/
Encoder
(DaVinci)
SDTV
CVBS S-Video Y’ S-Video C’
4801/5761
Y’P’ P’
B
G’B’R’
CVBS
500
Y’
500
C’
R
500
+3.3V
1
2
3
3
O CH.1
CH.2
CH.3
V
IN
THS7315
CH.1
IN
CH.2
IN
CH.3
IN
GAIN =
5.2V/V
OUT
OUT
OUT
GRN
75
8
75
7
6
5
75
75
75
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
Video Amplifiers
22
Video Amplifiers (Sorted by Ascending G = +2 Bandwidth)
–3dB at 0.1dBI
Q
Supply G = +2 Gain
Diff
Diff Offset Per Ch. Input
Voltage Bandwidth Flatness Gain Phase Slew Rate Voltage (mA) Range
Device Description
1
Ch. SHDN (V) (MHz) (MHz) (%) (°) (V/µs) (mV) (max) (typ) (V) RRO Package(s) Price
*
THS7313 I2C, SD 5th-Order LPF 3 Y 2.7 to 5.5 8 4 0.07 0.12 35 35 6 0 to 2.4 Y TSSOP-20 $1.20
THS7314 SDTV, 5th-Order Butterworth 3 Y 2.85 to 5.5 8.5 4.2 0.1 0.1 36 390 5.3 0 to 2.4 Y SOIC $0.40 THS7315 SDTV, 5th Order Butterworth, 3 N 2.85 to 5.5 8.5 0.2 0.3 37 420 5.2 0 to 0.56 Y SOIC $0.50
G = 5.2
OPA360 G = 2, DC-Coupled, LPF, 1 Y 2.7 to 3.3 9MHz 5 0.5 1 55 80 6 GND to Y SC-70 $0.49
Use with DM270/275/320 2-Pole Filter (V+)–1.5
OPA361 G = 5.2, DC-Coupled, LPF, TV 1 Y 2.5 to 3.3 9MHz 5 0.5 1 55 55 5.3 GND to 0.55 Y SC-70 $0.49
Detect 2-Pole Filter
THS7318 EDTV/SDTV 3 Y 2.85 to 5 20 11 0.05 0.03 80 200 3.5 0 to 2.4 Y Wafer Scale $3.75 THS7316 HDTV, 5th Order 3 N 2.85 to 5.5 36 0.1 0.1 390 5.8 0 to 2.3 Y SOIC $0.55 THS4281 Low Power, High Speed, RRIO 1 N
+2.7, ±5, +15
40 20 0.05 0.08 35 12.5 750 30 Y SOT, MSOP $0.95
OPA358 Small Package, 1 Y 2.7 to 3.3 40 12 0.3 0.7 55 6 5.2 GND –0.1 to Y SC-70 $0.45
Low Cost (V+)–1 OPAy832 VFB, Fixed Gain 1, 2, 3 N +2.8, ±5 80 0.1 0.16 350 7 4.25 –0.5 to 1.5 Y SOT-23, SOIC $0.70 OPAy354 VFB, Low Cost 1, 2, 4 N 2.5 to 5.5 100 40 0.02 0.09 150 8 4.9 –0.1 to 5.4 Y SOT-23, SOIC, $0.67
MSOP, TSSOP
OPAy357 VFB, Low Cost, SHDN 1, 2 Y 2.5 to 5.5 100 40 0.02 0.09 150 8 4.9 –0.1 to 5.4 Y SOT-23, SOIC, $0.67
MSOP
OPAy830 VFB 1, 2,
4 N +2.8, ±5.5 110 0.07 0.17 600 7 4.25 –0.45 to 1.2 Y SO-8, SOT-23 $0.75
OPA842 VFB 1 N ±5 150 56 0.003 0.008 400 1.2 20.2 ±3.2 N SOT-23, SOIC $1.55 OPAy683 CFB 1, 2 Y ±5, +5 150 37 0.06 0.03 540 1.5 0.9 ±3.75 N SOT-23, SOIC, $1.20
MSOP
THS7353 I2C, Selectable 3 Y 2.7 to 5.5 9/16/35/ 5/9/20/25 0.15 0.3 40/70/ 20 5.9 0 to 3.4 Y TSSOP-20 $1.65
SD/ED/HD/Bypass 150 150/300 5th-Order LPF, 0dB Gain
OPAy684 CFB 1, 2, Y ±5, +5 160 19 0.04 0.02 820 3.5 1.7 ±3.75 N SOT-23, SOIC $1.35
3, 4
THS7303 I2C, Selectable 3 Y 2.7 to 5.5 9/16/35/190 5/9.5/ 0.13 0.55 40/75/155/ 35 6 0 to 2.4 Y TSSOP-20 $1.65
SD/ED/HD/Bypass 22/125 320 5th-Order LPF, 6dB
OPAy355 VFB, Low Cost, SHDN
1, 2,
Y 2.5 to 5.5 200 75 0.02 0.05 300 9 8.3 –0.1 to 3 Y SOT-23, SOIC, $0.69
3
MSOP, TSSOP
OPAy356 VFB, Low Cost 1, 2 N 2.5 to 5.5 200 75 0.02 0.05 300 9 8.3 –0.1 to 3 Y SOT-23, SOIC, $0.69
MSOP OPA656 VFB, JFET-Input 1 N ±5 200 30 0.02 0.05 290 1.8 14 –4/+2.5 N SOT-23, SOIC $3.35 OPAy690 VFB 1, 2, 3 Y ±5, +5 220 30 0.06 0.03 1800 4 5.5 ±3.5 N SOT-23, SOIC $1.35 OPAy691 CFB 1, 2, 3 Y ±5, +5 225 90 0.07 0.02 2100 2.5 5.1 ±3.5 N SOT-23, SOIC $1.45 OPAy820 VFB 1, 4 N ±.5, ±5 230 0.01 0.03 240 0.75 5.6 0.9 to 4.5 N SOT-23, SOIC $0.90 OPAy692 CFB1, Fixed Gain 1, 3 Y ±5, +5 240 120 0.07 0.02 2000 2.5 5.1 ±3.5 N SOT-23, SOIC $1.15 THS7327 RGBHV Buffer, I2C, 2:1MUX 3 Y 2.7 to 5.5 9/16/35/ 4/7/15/ 0.3 0.45 1300 65 33 0 to 2.4 Y TQFP-48 $3.35
75/500 38/56
THS7347 RGBHV Buffer, I2C, 2:1MUX 3 Y 2.7 to 5.5 500 350 0.05 0.1 1300 15 26.8 0 to 2.4 Y TQFP-48 $2.75
OPAy694 CFB 2 N ±5 690 0.03 0.015 1700 4.1 5 ±2.5 N SOT-23, SOIC $1.25
OPAy693 CFB, Fixed Gain 1, 3 Y ±5, +5 700 200 0.03 0.01 2500 2 13 ±3.4 N SOT-23, SOIC $1.30 OPA695 CFB 1 Y ±5, +5 1400 320 0.04 0.007 4300 3 12.9 ±3.3 N SOT-23, SOIC $1.35 BUF602 Closed-Loop Buffer 1 N ±5, N/A 240 0.15 0.04 8000 30 5.8 ±4.0 N SOT-23, SOIC $0.85
AV = ±1, 1.4GHz 3.3 OPA615 DC Restoration 1 N ±5 N/A N/A N/A N/A 2500 N/A 13 ± 3.5 N SO-14, MSOP $4.25 OPA861 Transconductance 1 N ±5 N/A N/A 900 12 5.4 ±4.2 N SOT-23, SOIC $0.95
Video Multiplexers
OPA4872 4:1 MUX 1 Y ±3.5, ±6 500 120 0.035 0.005 2300 5 10.6 ±2.8 N SOIC $2.15 OPAy875 2:1 MUX 1, 3 Y ±3, ±6 700 200 0.025 0.025 3100 7 11 ±2.8 N MSOP,SOIC $1.20
SSOP, QSOP
1
VFB (Voltage Feedback), CFB (Current Feedback) *Suggested resale price in U.S. dollars in quantities of 1,000 New products are listed in bold red.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Comparators
23
Comparator ICs are specialized op amps designed to compare two input voltages and provide a logic state output. They can be considered one-bit analog-to-digital converters.
The TI comparator portfolio consists of a variety of products with various performance characteristics, including: fast ns response time, wide input voltage ranges, extremely low quiescent current consumption and op amp and comparator combination ICs.
Comparator vs. Op Amp
Comparator Op Amp
Speed (Response time) Yes No Logic Output Yes No Wide Diff. Input Range Yes Yes Low Offset Drift No Yes
In general, if a fast response time is required, use a comparator.
Design Considerations
Output topology
• Open collector—connects to the logic supply through a pull-up resistor and allows comparators to interface to a variety of logic families.
• Push-pull—does not require a pull-up resistor. Because the output swings rail-to­rail, the logic level is dependent on the voltage supplies of the comparator.
Response time (propagation delay)
applications requiring “near real-time” signal response should consider comparators with nanosecond (ns) propagation delay. Note that as propagation delay decreases, supply current increases. Evaluate what mix of performance and power can be afforded. The TLV349x family offers a unique combination of speed/power with 5µs propagation delay on only 1µA of quiescent current.
Combination comparator and op amp—for
input signals requiring DC level shifting and/or
gain prior to the comparator, consider the TLV230x (open drain) or TLV270x (push-pull) op amp and comparator combinations. These dual function devices save space and cost.
Comparator and voltage reference
comparators typically require a reference voltage to compare against. The TLV3011 is an integrated comparator and voltage reference combination in a space-saving SC70 package.
TLV3501 performance characteristics.
High-Speed Comparator in SOT23
TLV3501
Get samples and datasheets at: www.ti.com/sc/device/TLV3501
Key Features
• High speed: 4.5ns response at 20mV overdrive
• Beyond-the-rail common-mode input range
• Rail-to-rail, push-pull output
• Single-supply operation: 2.7V to 5.5V
• Packaging: SOT23
Applications
• Test and measurement
• Power supply monitoring
• Base stations
The TLV3501 is a high-speed comparator in a small SOT23 package. Designed for a variety of applications, TLV3501 offers very fast response relative to power consumption. It is specified over the extended temperature range of –40°C to +125°C.
0.006
0.0078
0.025
Faster
0.115
0.2
0.3
1.1
Increasing Speed
Response Time Low-to-High (µs)
36
Slower
80
1
7
Push-Pull Output
Open-Drain Output
1.81.4
TLC352, TLC354
LMV331, LMV393, LMV339
TLV3491, TLV3492
TLV3701, TLV3702, TLV3704
TLV3401, TLV3402, TLV3404
3.3 5 16 30
TL714
TL3016
TL712
LM393, LM339
S, 12mA/ch
S, 12mA/ch
S, 12.5mA/ch
S, 20mA/ch
LM211
D, Q, 150µA/ch
D, Q, 150µA/ch
S, D, Q, 100µA/ch
D, Q, 20µA/ch
D, Q, 20µA/ch
S, D, Q, 1.2µA/ch
S, D, Q, 0.8µA/ch
S, D, Q, 0.55µA/ch
TLV3501
TLC372, TLC374
TLC393, TLC339
TLC3702, TLC3704
Supply Voltage (V)
S, 6mA/ch
D, Q, 500µA/ch
PROPAGATION DELAY vs. OVERDRIVE VOLTAGE
9
8
Rise
7
6
Fall
5
Propagation Delay (ns)
4
3
0 20 40 60 80 100
Overdrive Voltage (mV)
V
= 1V
CM
V
= 5V
S
C
= 17pF
LOAD
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
Comparators
24
TLV3011 or TLV3012 configured to power-up reset for MSP430.
Low-Power Comparators with Integrated Voltage Reference
TLV3011, TLV3012
Get samples and datasheets at: www.ti.com/sc/device/TLV3011 and www.ti.com/sc/device/TLV3012
Key Features
• Comparator and voltage reference:
TLV3011: open-drain output
TLV3012: push-pull output
• Integrated voltage reference: 1.2V
1% initial accuracy, 40ppm/
°
C drift
• Low quiescent current: 5µA max
• Wide input common-mode range: 200mV beyond rails
• Propagation delay: 6µs
• Very low-voltage operation: 1.8V to 5.5V
• Packaging: SC-70 and SOT23
Applications
• Battery voltage monitoring
• Power good function
• Low signal/voltage detection
• Relaxation oscillator
The TLV3011 is a low-power, open-drain output comparator; the TLV3012 is a push-pull output comparator. The integrated 1.242V series voltage reference offers low 100ppm/°C (max) drift, is stable with up to 10nF capacitive load and can provide up to 0.5mA (typ) of output current.
Comparators Selection Guide
IQPer Output t
RESP
V
OS
Ch. Current Low-to- V
S
V
S
(25°C)
(mA) (mA) High (V) (V) (mV)
Device Description Ch. (max) (min) (µs) (min) (max) (max) Output Type Package(s) Price*
High Speed, t
RESP
0.1µs
TLV3501 Ultra-High Speed, Low Power 1, 2 5 20 0.004 2.7 5.5 5 Push-Pull SOT23 $1.50
TL714 High Speed, 10mV (typ) Hysteresis 1 12 16 0.006 4.75 5.25 10 Push-Pull PDIP, SOIC $2.16 TL3016 High Speed, Low Offset 1 12.5 0.0078 5 10 3 Open-Drain/Collector SOIC, TSSOP $0.95 TL3116 Ultra Fast, Low Power, Precision 1 14.7 0.0099 5 10 3 Open-Drain/Collector SOIC, TSSOP $0.95 TL712 Single, High Speed 1 20 16 0.025 4.75 5.25 5 Push-Pull PDIP, SOIC, SOP $0.83 LM306 Single, Strobed, General Purpose 1 6.8 100 0.028 –6 12 5 Push-Pull PDIP, SOIC $0.42 LM211 Single, High Speed, Strobed 1 6 0.115 3.5 30 3 Open-Drain/Collector PDIP, SOIC $0.20 LM311 Single, High Speed, Strobed, Differential 1 7.5 0.115 3.5 30 7.5 Open-Drain/Collector
PDIP, SOIC, SOP, TSSOP
$0.18
LM111 Single, Strobed, Differential 1 6 0.165 3.5 30 3 Open-Drain/Collector CDIP, LCCC $1.37
Low Power, IQ< 0.5mA
TLV3401 Nanopower, Open-Drain, RRIO 1, 2, 4 0.00055 80 2.5 16 3.6 Open-Drain/Collector MSOP, PDIP, SOIC, $0.60
SOT23, TSSOP
TLV3701 Nanopower, Push-Pull, RRIO 1, 2, 4 0.0008 36 2.5 16 5 Push-Pull MSOP, PDIP, SOIC, $0.60
SOT23, TSSOP TLV3491 Low Voltage, Excellent Speed/Power 1, 2 0.0012 < 0.1 1.8 5.5 15 Push-Pull SOT23, SOIC, TSSOP $0.42 TLV2302 Sub-µPower, Op Amp and 1, 2 0.0017 55 2.5 16 5 Open-Drain/Collector MSOP, PDIP, SOIC, $0.90
Comparator, RRIO TSSOP
TLV2702 Sub-µPower, Op Amp and 1, 2 0.0019 36 2.5 16 5 Push-Pull MSOP, PDIP, SOIC, $0.90
Comparator, RRIO TSSOP TLC3702 Dual and Quad, µPower 2, 4 0.02 4 1.1 3 16 5 Push-Pull PDIP, SOIC, TSSOP $0.34 TLC393 Low Power, LM393 Replacement 2 0.02 6 1.1 3 16 5 Open-Drain/Collector
PDIP, SOIC, SOP, TSSOP
$0.37
*Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
TLV3011
R
1
1M
C
1
10nF
V+
1.242V
TLV301x
PULL-UP
D
I
NOTE: (1) Use R
R
PULL-UP
10k
REF
with the TLV3011 only.
(1)
MSP430
RESET
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Comparators Selection Guide (Continued)
25
IQPer Output t
RESP
V
OS
Ch. Current Low-to- V
S
VS(25°C)
(mA) (mA) High (V) (V) (mV)
Device Description Ch. (max) (min) (µs) (min) (max) (max) Output Type Package(s) Price*
Low Power, IQ< 0.5mA (Continued)
TLC339 Quad, Low Power 4 0.02 6 1 3 16 5 Open-Drain/Collector PDIP, SOIC, TSSOP $0.44 LP2901 Quad, Low Power, General Purpose 4 0.025 1.3 5 30 5 Open-Drain/Collector PDIP, SOIC $0.56 LP339 Quad, Low Power, General Purpose 4 0.025 1.3 5 30 5 Open-Drain/Collector PDIP, SOIC $0.49 LMV393 Dual, Low Voltage 2 0.1 10 0.2 2.7 5.5 7 Open-Drain/Collector SOIC, TSSOP $0.34 LMV339 Quad, Low Voltage 4 0.1 0.2 2.7 5.5 7 Open-Drain/Collector SOIC, TSSOP $0.36 LMV331 Single, Low Voltage 1 0.12 10 0.2 2.7 5.5 7 Open-Drain/Collector SC70, SOT23 $0.34 TLC372 Fast, Low Power 2, 4 0.15 6 0.2 2 18 5 Open-Drain/Collector PDIP, SOIC, TSSOP $0.33 TLM3302 Quad, General Purpose 4 0.2 6 0.3 2 28 20 Open-Drain/Collector PDIP, SOIC $0.46 LP211 Single, Strobed, Low Power 1 0.3 1.2 3.5 30 7.5 Open-Drain/Collector SOIC $0.50 LP311 Single, Strobed, Low Power 1 0.3 1.6 1.2 3.5 30 7.5 Open-Drain/Collector PDIP, SOIC, SOP $0.46
Low Voltage, VS ≤ 2.7V (min)
TLC352 1.4V 2, 4 0.15 6 0.2 1.4 18 5 Open-Drain/Collector PDIP, SOIC, TSSOP $0.40 TLV3491 Low Voltage, Excellent Speed/Power 1, 2, 4 0.0012 < 0.1 1.8 5.5 15 Push-Pull SOT23, SOIC, TSSOP $0.42 TLV2352 Low Voltage 2, 4 0.125 6 0.2 2 8 5 Open-Drain/Collector PDIP, SOIC, TSSOP $0.90 TLC372 Fast, Low Power 2 0.15 6 0.2 2 18 5 Open-Drain/Collector PDIP, SOIC, TSSOP $0.33 LM3302 Quad, General Purpose 4 0.2 6 0.3 2 28 20 Open-Drain/Collector PDIP, SOIC $0.46 LM2903 Dual, General Purpose 2 0.5 6 0.3 2 30 7 Open-Drain/Collector PDIP, SOIC, SOP, TSSOP $0.22 LM293 Dual, General Purpose 2 0.5 6 0.3 2 30 5 Open-Drain/Collector PDIP, SOIC $0.28 LM293A Dual, General Purpose 2 0.5 6 0.3 2 30 3 Open-Drain/Collector SOIC $0.36 LM393 Dual, General Purpose 2 0.5 6 0.3 2 30 5 Open-Drain/Collector PDIP, SOIC, SOP, TSSOP $0.18 LM393A Dual, General Purpose 2 0.5 6 0.3 2 30 3 Open-Drain/Collector PDIP, SOIC, SOP, TSSOP $0.27 LM239 Quad, General Purpose 4 0.5 6 0.3 2 30 5 Open-Drain/Collector PDIP, SOIC $0.28 LM239A Quad, General Purpose 4 0.5 6 0.3 2 30 2 Open-Drain/Collector SOIC $0.91 LM2901 Quad, General Purpose 4 0.625 6 0.3 2 30 3 Open-Drain/Collector PDIP, SOIC, SOP, TSSOP $0.22 LM339 Quad, General Purpose 4 0.5 6 0.3 2 30 5 Open-Drain/Collector PDIP, SOIC, SOP, $0.18
SSOP, TSSOP LM339A Quad, General Purpose 4 0.5 6 0.3 2 30 3 Open-Drain/Collector PDIP, SOIC, SOP $0.27 TL331 Single, Differential 1 0.7 6 0.3 2 36 5 Open-Drain/Collector SOT23 $0.28 LM139 Quad 4 0.5 6 0.3 2 36 5 Open-Drain/Collector SOIC $0.54 LM139A Quad 4 0.5 6 0.3 2 36 2 Open-Drain/Collector SOIC $0.94 LM193 Dual 4 0.5 6 0.3 2 36 5 Open-Drain/Collector SOIC $0.30 TLV3401 Nanopower, RRIO 1, 2, 4 0.00055 80 2.5 16 3.6 Open-Drain/Collector MSOP, PDIP, SOIC, $0.60
SOT23, TSSOP
TLV3701 Nanopower, RRIO 1, 2, 4 0.0008 36 2.5 16 5 Push-Pull MSOP, PDIP, SOIC, $0.60
SOT23, TSSOP LMV331 Single, Low Voltage 1 0.12 10 0.2 2.7 5.5 7 Open-Drain/Collector SC70, SOT23 $0.34 LMV393 Dual, Low Voltage 2 0.1 10 0.2 2.7 5.5 7 Open-Drain/Collector SOIC, TSSOP $0.34 LMV339 Quad Low-Voltage 4 0.1 0.2 2.7 5.5 7 Open-Drain/Collector SOIC, TSSOP $0.36
Combination Comparator and Op Amp
TLV2302 Sub-µPower, Op Amp and 2 0.0017 55 2.5 16 5 Open-Drain/Collector MSOP, PDIP, SOIC, $0.90
Comparator, RRIO TSSOP
TLV2702 Sub-µPower, Op Amp and 2, 4 0.0019 36 2.5 16 5 Push-Pull MSOP, PDIP, SOIC, $0.90
Comparator, RRIO TSSOP
Comparator and Voltage Reference
TLV3011 µPower, Comparator 1 0.003 5 6 1.8 5.5 15 Open-Drain/Collector SC-70, SOT23 $0.75
with 1.242V Reference
TLV3012 µPower, Comparator 1 0.003 5 6 1.8 5.5 15 Push-Pull SC-70, SOT23 $0.75
with 1.242V Reference
*
Suggested resale price in U.S. dollars in quantities of 1,000.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
26
Amplifiers
Difference Amplifiers
Common-mode input voltage range
selection of the most suitable difference amp begins with an understanding of the input voltage range. Some offer resistor networks that divide down the input voltages, allowing operation with input signals that exceed the power supplies. A five-resistor version of the simple difference amplifier results in a device that can operate with very high levels of common-mode voltage—far beyond the supply rails.
Gain—signal amplification needed for the
desired circuit function must be considered. With the uncommitted on-chip op amp, the INA145 and the INA146 can be configured for gains of 0.1 to 1000.
Sensor impedance—should be <0.001 of
difference amp input impedance to retain CMR and gain accuracy. In other words, the amp input impedance should be 1,000 times higher than the source impedance.
Offset voltage drift (µV/°C)—input offset
voltage changes over temperature. This is more critical in applications with changing ambient temperature.
Quiescent current—often of high importance
in battery-powered applications, where amplifier power consumption can greatly influence battery life.
Slew rate—if the signal is reporting a
temperature, force or pressure, slew rate is not generally of great concern. If the signal is for an electronic event, (e.g., current, power output) a fast transition may be needed.
Common-mode rejection—a measure of
unwanted signal rejection and the amp's ability to extract a signal from surrounding DC, power line or other electrical noise.
The difference amplifier is a moderate input impedance, closed-loop, fixed-gain block that allows the acquisition of signals in the presence of ground loops and noise. These devices can be used in a variety of precision, general-purpose, audio, low-power, high­speed and high-common-mode voltage applications.
Difference Amplifier
The basic difference amplifier employs an op amp and four on-chip, precision, laser trimmed resistors. The INA132, for example, operates on 2.7V to 36V supplies and consumes only 160µA. It has a differential gain of 1 and high common-mode rejection. The output signal can be offset by applying a voltage to the Ref pin. The output sense pin can be connected directly at the load to reduce gain error. Because the resistor network divides down the input voltages, difference amplifiers can operate with input signals that exceed the power supplies.
High Common-Mode Voltage Difference Amplifier Topology
A five-resistor version of the simple difference amplifier results in a device that can operate with very high levels of common-mode voltage—far beyond its power supply rails. For example, the INA117 can sense differential signals in the presence of common-mode voltages as high as ±200V while being powered from ±15V. This device is very useful in measuring current from a high-voltage power supply through a high­side shunt resistor.
Design Considerations
Power supply—common-mode voltage is
always a function of the supply voltage. The INA103 instrumentation amplifier is designed to operate on voltage supplies up to ±25V, while the INA122 difference amp can be operated from a 2.2V supply.
Output voltage swing—lower supply
voltage often drives the need to maximize dynamic range by swinging close to the rails.
Should I Use a Difference Amplifier or Instrumentation Amplifier?
Difference amplifiers excel when measuring signals with common-mode voltages greater
than the power supply rails, when there is a low power requirement, when a small package is needed, when the source impedance is low or when a low-cost differential amp is required. The difference amp is a building block of the instrumentation amp.
Instrumentation amplifiers are designed to amplify low-level differential signals where the maximum common-mode voltage is within the supply rails. Generally, using an adjustable gain block, they are well-suited to single-supply applications. The three-op-amp topology works well down to Gain = 1, with a performance advantage in AC CMR. The two-op-amp topology is appropriate for tasks requiring a small package footprint and a gain of 5 or greater. It is the best choice for low-voltage, single-supply applications.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Difference Amplifiers
27
High-Speed, Precision, Level Translation Difference Amplifier
INA159
Get samples and datasheets at: www.ti.com/sc/device/INA159
Key Features
• Gain of 0.2 interface between ±10V
signals and low-voltage, single-supply ADCs
• Wide bandwidth: 1.5MHz
• High slew rate: 15V/µs
• Low offset voltage: ±100µV
• Low offset drift: ±1.5µV/°C
• Linearity: 0.01% FSR
• Single supply: +1.8V to +5.5V
Applications
• Industrial process control
• Instrumentation
• Differential-to-single-ended
conversion
• Audio line receiver
The INA159 is a level translation difference amplifier. It acts as a translator between ±10V levels and the input of single-supply ADCs typically operating at 5V. The INA159 accomplishes this with a gain of 0.2 along with a convenient voltage-divider reference input simplifying the biasing of the INA159’s quiescent output to the optimum point for the ADC. The INA159 has a robust output stage, excellent frequency response and high slew rate.
INA159 simplifies level translation of ±10V input to single supply ADC.
Difference Amplifiers Selection Guide
Offset IQPer
Offset Drift CMRR BW Power Ch.
(µV) (µV/°C) (dB) (MHz) Output Voltage Supply (mA)
Device Description Ch. Gain (max) (max) (min) (typ) Swing (V) (min) (V) (max) Package(s) Price*
INA105 Precision, Unity-Gain 1 1 250 10 86 1 (V+) –5 to (V–) +5 ±5 to ±18 2 SOIC-8 $2.80 INA106 Precision, Fixed G=10 1 10 200 0.2 86 5 (V+) –5 to (V–) +5 ±5 to ±18 2 SOIC-8 $5.00 INA132 µPower, Single Supply, High Precision 1 1 250 5 76 0.3 (V+) –1 to (V–) +0.5 +2.7 to +36 0.185 DIP, SO $1.05 INA2132 Dual INA132 2 1 250 5 80 0.3 (V+) –1 to (V–) +0.5 +2.7 to +36 0.185 DIP, SO $1.80 INA133 High Speed, Precision 1 1 450 5 80 1.5 (V+) –1.5 to (V–) +1 ±2.25 to ±18 1.2 SOIC-8 $1.05 INA2133 Dual INA133 2 1 450 5 80 1.5 (V+) –1.5 to (V–) +1 ±2.25 to ±18 1.2 SOIC-14 $1.80 INA143 High Speed, Precision, G = 10 or 1/10 1 10, 0.1 250 3 86 0.15 (V+) –1.5 to (V–) +1 ±2.25 to ±18 1.2 SOIC-8 $1.05 INA2143 Dual INA143 2 10, 0.1 250 3 86 0.15 (V+) –1.5 to (V–) +1 ±2.25 to ±18 1.2 SOIC-14 $1.70 INA145 Resistor Programmable Gain 1 1 to 1000 1000 10 70 0.5 (V+) –1 to (V–) +0.25 ±2.25 to ±18 0.7 SOIC-8 $1.50 INA152 µPower, High Precision 1 1 1500 15 80 0.8 (V+) –0.35 to (V–) +0.3 +2.7 to +20 0.65 MSOP-8 $1.20 INA154 High Speed, Precision 1 1 750 20 80 3.1 (V+) –2 to (V–) +2 ±4 to ±18 2.9 SOIC-8 $1.05 INA157 High Speed, Precision, G = 2 or 1/2 1 2, 0.5 500 20 86 4 (V+) –2 to (V–) +2 ±4 to ±18 2.9 SOIC-8 $1.05
INA159 High Speed, Precision, Level Shift, G = 0.2 1 0.2 500 1.5 80 1.5 (V+)–0.1 to (V–)+0.048 +1.8 to +5.5 1.5 MSOP-8 $1.60
Audio
INA134 Low Distortion, Audio Line Receiver, 0dB 1 1 1000 2 74 3.1 (V+) –2 to (V–) +2 ±4 to ±18 2.9 SOIC-8 $1.05 INA2134 Dual INA134 2 1 1000 2 74 3.1 (V+) –2 to (V–) +2 ±4 to ±18 2.9 SOIC-14 $1.70 INA137 Low Distortion, Audio Line Receiver, 6dB 1 2, 0.5 1000 2 74 4 (V+) –2 to (V–) +2 ±4 to ±18 2.9 SOIC-8 $1.05 INA2137 Dual INA137 2 2, 0.5 1000 2 74 4 (V+) –2 to (V–) +2 ±4 to ±18 2.9 SOIC-14 $1.70 DRV134 Audio Balanced Line Driver 1 2 250000 150 46 1.5 (V+) –3 to (V–) +2 ±4.5 to ±18 5.5 SOIC-16 $1.95 DRV135 Audio Balanced Line Driver 1 2 250000 150 46 1.5 (V+) –3 to (V–) +2 ±4.5 to ±18 5.5 SOIC-8 $1.95
High Common-Mode Voltage
INA117 ±200V CM Range 1 1 1000 40 86 0.2 (V+) –5 to (V–) +5 ±5 to ±18 2 SOIC-8 $2.70 INA146 ±100V CM Range, Prog. Gain 1 0.1 to 100 10000 600 70 0.55 (V+) –1 to (V–) +0.15 ±2.25 to ±18 0.75 SOIC-8 $1.70 INA148 ±200V CM Range, 1MInput 1 1 5000 10 70 0.1 (V+) –1 to (V–) +0.25 ±1.35 to ±18 0.3 SOIC-8 $2.10
*S
uggested resale price in U.S. dollars in quantities of 1,000.
New products are listed in bold red
.
5V
100k 20k 100kΩ
100k
±10V
INA159
Analog Signal Conditioning Analog-to-Digital Conversion
+
40k
40k
5V
REF3220
5V
0.5-4.5V
+IN
–IN
ADS8361
REF
REF
IN
OUT
1nF
2.5V
2.048V
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
28
Amplifiers
Analog Current Shunt Monitors
Current shunt monitors are a unique class of high common-mode voltage difference amplifiers that have the ability to operate on single, low-voltage supplies.
Current shunt monitors have a common-mode voltage range that is independent of power supply (as opposed to classical difference amplifiers where the common-mode voltage range is proportional to power supply voltage). Unlike most high common­mode voltage difference amplifiers, current sense shunt monitors have gains for sensing low differential voltages (50mV to 100mV).
Current sensing can be done on either the low-side (ground) or high-side (power supply). Low-side sensing is simple and requires no special components, but it often cannot be used because it either disturbs ground or requires additional wiring. Current shunt monitors are intended to make it easy to implement high-side current sensing. Discrete solutions to high-side sensing are difficult and costly to implement.
Common-Mode Voltage
The common-mode voltage range is typically the first parameter to be considered and this breaks down into two basic categories of current shunt monitors: families that handle only positive common-mode voltages above +2.7V (with a choice of upper limits up to +60V); and a family that handles –16V to +80V. The ability to sense common-mode voltages at ground and below is required when the power supply that the current is being sensed from could get shorted out, or if the shunt resistor is in an inductive load that could be exposed to inductive kickback. In addition, a common­mode range to –16V allows the current shunt monitor to be used to sense current in –12V to –15V power supplies. Lastly, it easily withstands battery reversals in 12V automotive applications.
Current Output vs. Voltage Output
Another broad category is the type of output. The current output families enable the gain to be set by selecting the value of an external load resistor. The fastest current shunt monitor is the INA139 or INA169. Current output INA170, and current output devices have a minimum common-mode voltage of +2.7V, with a maximum up to +60V.
Voltage output current shunt monitors have the advantage of a buffered voltage output which eliminates the need for an additional op amp in many applications. These devices are available in fixed gains of 14, 20, 50 and
100. The voltage output current shunt monitors all have a common-mode range of –16V to +80V.
High-Side Current Shunt Monitors Current, Voltage and Power Over I2C Bus
INA209
Get samples, datasheets, and evaluation modules at: www.ti.com/INA209
INA209 functional block diagram.
Key Features
• Monitors current and voltage and calculates power over I2C bus
• Bi-directional
• Full scale current sense (input) voltage range, 0mV to ±320mV
• 1% error (max over temp)
• CMR: 0V to 26V with +3.0V to +5.5V supply
• Triple watchdog limits
Underlimit warning – with delay
Overlimit warning – no delay
Separate fast analog critical path
for shutdown
Applications
• Servers
• Power management
• Power supplies
• Battery chargers
• Welding equipment
• Test equipment
• Telecom equipment
• Automotive
The INA209 is a high-side current shunt monitor with an I
2
C interface. It features the ability to measure both the shunt drop and bus voltage and calculate the power. It also has two levels of watchdog alarms and a fast analog overlimit comparator for critical shutdown. Other unique features are the sensing of bidirectional currents and has excellent low shunt drop accuracy.
The INA209 current shunt monitor features a common-mode range of 0V to +26V while operating from a single +3V to +5.5V supply and drawing a maximum of 2mA of supply current. The INA209 is specified over the extended operating temperature range of –40°C to +125°C.
See Page 80 for a complete selection
of digital output current shunt monitors.
INA209
V
V
S
V
Ground
(Supply Voltage)
H
Critical
Convert
Critical
DAC+
DAC–
V
–H
Filter
CMP
Overlimit Register Warming Register
Power Register
Current Register
Voltage Register
2
C
I
Interface
GPIO
Critical
Overlimit
Warning
Alert
Data
CLK
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Analog Current Shunt Monitors
29
–16V to +80V, High-Side Current Shunt Monitors with Integrated Dual Comparators
INA203, INA204, INA205, INA206, INA207, INA208
Get samples, datasheets, and evaluation modules at:
www.ti.com/sc/device/PARTnumber (Replace PARTnumber with INA203, INA204, INA205, INA206, INA207 or INA208)
INA206/INA207/INA208 functional block diagram.
Key Features
• Extended common mode input range: –16V to +80V
• Integrated dual open-drain comparators
• 1.2V reference
• Low offset: 2mV
• Rail-to-rail output voltage
• Single supply: 2.7V to 18V
• Packaging: MSOP, SO-14, TSSOP
Applications
• Notebook computers
• Cell phones
• Telecom equipment
• Power management
• Battery chargers
The INA203/04/05/06/07/08 feature dual comparators and 1.2V reference. These devices are ideal for multilevel watchdog systems, window comparators, or battery detection. Convenient default trip points are provided at each comparator of 0.6V. The 14-pin version allows external overide of trip points + programmable delay on 2nd comparator. Comparator #1 has a latching capability.
The current shunt amplifiers of the INA203/04/05/06/07/08 feature a common-mode range of –16V to +80V independent of supply voltage, and are powered by single-supply voltages from +2.7V to +18V. The INA20x provides a fully buffered voltage output available in three gains: INA203/INA206 = 20V/V; INA204/INA207 = 50V/V; INA205/INA208 = 100V/V.
Current Shunt Monitors Selection Guide
Offset IQPer
Offset Drift CMRR BW Power Ch.
(µV) (µV/ºC) (dB) (MHz) Output Voltage Supply (mA)
Device Description Ch. Gain (max) (max) (typ) (typ) Swing (V) (min) (V) (max) Package(s) Price
*
Voltage-Output, High-Side Current Shunt Monitors
INA19x –16V to +80V CMV 1 20, 50, 100V/V 2000 2.5 120 0.5, 0.3, 0.2 V(+) –0.2 +2.7 to 18 0.9 SOT23-5 $0.80
INA20x Single/Dual Comparator, V
REF
1 20, 50, 100V/V 2500 5 100 0.5, 0.3, 0.2 V(+) –0.25 +2.7 to 18 2.2 SO-14/TSSOP-14, MSOP-10, $1.25
MSOP/SO/DFN-8
INA27x –16V to +18V CMV, Filtering Provision 1 14, 20V/V 2000 2.5 120 0.13 V(+) –0.2 +2.7 to 18 0.9 SO8 $1.25
Current-Output, High-Side Current Shunt Monitors
INA138 36V (max) 1 1 to 100 1000 1 120 0.8 0 to (V+) –0.8 +2.7 to 36 0.045 SOT23-5 $0.95 INA168 60V (max) 1 1 to 100 1000 1 120 0.8 0 to (V+) –0.8 +2.7 to 60 0.045 SOT23-5 $1.25 INA139 High Speed, 40V (max) 1 1 to 100 1000 1 115 0.44 0 to (V+) –1.2 +2.7 to 40 0.125 SOT23-5 $0.99 INA169 High Speed, 60V (max) 1 1 to 100 1000 1 120 0.44 0 to (V+) –1.2 +2.7 to 60 0.125 SOT23-5 $1.25
Bidirectional Current Shunt Monitors
INA170 60V (max) 1 1 to 100 1000 1 120 0.4 0 to V(+) –1.2 +2.7 to 40 0.125 MSOP-8 $1.25 INA209 Voltage Current, Power Over I2C 1 100 10 120 34 3.5V to 5.5V 2 TSSOP-16 $3.50
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
INA206
V+
x20
C1
IN
V
OUT
C1 RESET
OUT
1.2V Reference
C2
IN
INA206
V
REF OUT
C2
OUT
DELAY
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
30
Amplifiers
Instrumentation Amplifiers
The instrumentation amplifier (IA) is a high input impedance, closed-loop, fixed- or adjustable-gain block that allows for the amplification of low-level signals in the presence of common-mode errors and noise. TI offers many types of instrumentation amplifiers including single-supply, low-power, high-speed and low-noise devices. These instrumentation amplifiers are available in either the traditional three-op-amp or in the cost-effective two-op-amp topology.
Three-Op-Amp Version
The three-op-amp topology is the benchmark for instrumentation amplifier performance. These devices provide a wide gain range (down to G = 1) and generally offer the highest performance. Symmetrical inverting and non-inverting gain paths provide better common-mode rejection at high frequencies. Some types use current-feedback-type input op amps which maintain excellent bandwidth in high gain.
Two-Op-Amp Version
The two-op-amp topology can provide wider common-mode voltage range, especially in low-voltage, single-supply applications. Their simpler internal circuitry allows lower cost, lower quiescent current and smaller package sizes. This topology, however, does not lend itself to gains less than four (INA125) or five (all others).
Design Considerations
Supply voltage—TI has developed a series of
low-voltage, single-supply, rail-to-rail instrumentation amps suitable for a wide variety of applications requiring maximum dynamic signal range.
Gain requirement—for high-gain applications
consider a low total noise device, because drift, input bias current and voltage offset all contribute to error.
Common-mode voltage range—the voltage
input range over which the amplifier can operate and the differential pair behaves as a linear amplifier for differential signals.
Input bias current—can be an important
factor in many applications, especially those sensing a low current or where the sensor impedance is very high. The INA116 requires only 3fA typical of input bias current.
Offset voltage and drift—IAs are
generally used in high-gain applications, where any amp errors are amplified by the circuit gain. These errors can become signifi­cant unless VOSand drift performance are considered in the device selection. Bipolar input stage INAs generally have smaller error contribution from offset and drift in low source impedance applications.
Current-feedback vs. voltage-feedback input stage—appropriate for designers needing
higher bandwidth or a more consistent 3dB rolloff frequency over various gain settings. The INA128 and INA129 provide a significantly higher 3dB rolloff frequency than
voltage-feedback input stage instrumentation amps and have a 3dB rolloff at essentially the same frequency in both G = 1 and G = 10 configurations.
Technical Information
IAs output the difference accurately between the input signals providing Common-Mode Rejection (CMR). It is the key parameter and main purpose for using this type of device. CMR measures the device’s ability to reject signals that are common to both inputs.
IAs are often used to amplify the differential output of a bridge sensor, amplifying the tiny bridge output signals while rejecting the large common-mode voltage. They provide excellent accuracy and performance, yet require minimal quiescent current. Gain is usually set with a single external resistor.
In some applications unwanted common-mode signals may be less conspicuous. Real-world ground interconnections are not perfect. What may, at first, seem to be a viable single-ended amplifier application can become an accumulation of errors. Error voltages caused by currents flowing in ground loops sum with the desired input signal and are amplified by a single-ended input amp. Even very low impedance grounds can have induced voltages from stray magnetic fields. As accuracy requirements increase, it becomes more difficult to design accurate circuits with a single-ended input amplifier. The differential input instrumentation amplifier is the answer.
The three-op-amp topology is the benchmark for instrumentation amplifier performance.
Two-op-amp topology provides wider common-mode range in low-voltage, single-supply applications.
R
G
25k
25k100k
Ref
A
1
V
IN
V
IN
= (V
V
– VIN) • G + V
O
IN
REF
Single Supply
100k
A
2
V+
Dual
Supply
V–
V
IN
R
G
V
IN
Over-Voltage
Protection
Over-Voltage
Protection
A
A
1
25k
2
60k 60k
A
3
60k
60k
G = 1 +
V
O
Ref
50k
R
G
V
O
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Instrumentation Amplifiers
31
Single-Supply, RRIO, Low-Offset, Low-Drift Instrumentation Amplifiers
INA326, INA327 (Shutdown Version)
Get samples, datasheets and app reports at: www.ti.com/sc/device/INA326 and www.ti.com/sc/device/INA327
Key Features
• Low offset: 100µV (max)
• Low offset drift: 0.4µV/°C (max)
• Excellent long-term stability
• Very-low 1/f noise
• True rail-to-rail I/O
• Input common-mode range:
20mV below negative rail
100mV above positive rail
• Wide output swing: within 10mV of rails
• Single supply range: +2.7V to +5.5V
• Temp range: –40°C to +85°C
• Packaging: MSOP-8, MSOP-10
Applications
• Low-level transducer amplifier for bridges, load cells, thermocouples
• Wide dynamic range sensor measurements
• High-resolution test systems
• Weigh scales
• Multi-channel data acquisition systems
• Medical instrumentation
The INA326 uses a new, unique internal circuit topology that provides true rail-to-rail input. Unlike other instrumentation amplifiers, it can linearly process inputs to 20mV below the negative power supply rail, and 100mV above the positive power supply rail. Conventional instrumentation amplifier input topologies cannot deliver such wide dynamic performance.
In most instrumentation amplifiers, the ability to reject common-mode signals is derived through a combination of input amplifier CMR and accurately matched resistor ratios. The INA326 converts the input voltage to a current, allowing the input amplifiers to accurately match and reject common-mode input voltage and power supply variation without the use of resistors.
INA326 functional block diagram.
A
2
A
1
A
3
40k
V
REF
VIN–
V
IN
+
10k
10k
ShutdownV+
V
OUT
G = 5 + (5R2/R1)
V–
R
2
R
1
R
G
40k
+
+
+
2MHz Bandwidth, Rail-to-Rail Output, Single-Supply Instrumentation Amplifiers
INA332, INA2332
Get samples, datasheets, and app reports at: www.ti.com/sc/device/INA332 and www.ti.com/sc/device/INA2332
INA332 functional block diagram.
Key Features
• High gain accuracy: G = 5, 0.07%, 2ppm/°C
• High CMRR: 73dB DC, 50dB at 45kHz
• Low bias current: 0.5pA
• Bandwidth: 2MHz
• Slew rate: 5V/µs
• Rail-to-rail output swing: (V+) –0.02V
• Low quiescent current: 490µA max/ch
• Packaging: MSOP-8 (single), TSSOP-14 (dual)
Applications
• Industrial sensors:
Bridge, RTD, thermocouple, position
• Physiological amplifiers: ECG, EEG, EMG
• Field utility meters
• PCMCIA cards
• Test equipment
• Automotive instrumentation
The INA332 and INA2332 are rail-to-rail output, low-power, Gain = 5, CMOS instrumentation amplifiers that operate on 2.7V to 5.5V supplies. They offer excellent speed/power ratio with 2MHz bandwidth and 490µA/channel supply current. Available shutdown/enable function adds additional power savings by reducing current to 0.01µA.
INA326
INA332
V+ V–
0.1µF
Current Monitor
V
IN–
R
I
1
R1
I
R1
V
IN+
I
R1
A1
Current Monitor
Current Monitor
2I
R1
A2
2I
R1
Current Monitor
I
R1
2I
R1
2I
R1
2I
R1
A3
V
0
R
C
2
IA
2
COMMON
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
Single-Supply Instrumentation Amplifiers
32
Single-Supply Instrumentation Amplifiers Selection Guide
Input Offset CMRR BW I
Q
Non Bias at Offset at at Noise Per
Linearity Current G = 100 Drift G = 100 G = 100 1kHz Power Amp
(%) (nA) (µV) (µV/°C) (dB) (kHz) (nV/ Hz) Supply (mA)
Device Description Gain (max) (max) (max) (max) (min) (min) (typ) (V) (max) Package(s) Price
*
Single-Supply, Low-Power, IQ< 525µA per Instrumentation Amp
INA321 RRO, SHDN, Low Offset, Gain Error, Wide Temp 5 to1000 0.01 0.01 1000 7
1
90 50 100 2.7 to 5.5 0.06 MSOP-8 $1.10
INA2321 Dual INA321 5 to1000 0.01 0.01 1000 7
1
90 50 100 2.7 to 5.5 0.06 TSSOP-14 $1.75 INA322 RRO, SHDN, Wide Temp, Low Cost 5 to 1000 0.01 0.01 10000 7 60 50 100 2.7 to 5.5 0.06 MSOP-8 $0.95 INA2322 Dual INA322 5 to 1000 0.01 0.01 10000 7 60 50 100 2.7 to 5.5 0.06 TSSOP-14 $1.50 INA122 µPower, RRO, CM to GND 5 to 10000 0.012 25 250 3 90 5 60 2.2 to 36 0.085 DIP-8, SOIC-8 $2.10 INA332 RRO, Wide BW, SHDN, Wide Temp, Low Cost 5 to 1000 0.01 0.01 10000 7
1
60 500 100 2.7 to 5.5 0.1 MSOP-8 $0.85 INA2332 Dual INA332 5 to 1000 0.01 0.01 10000 7
1
60 500 100 2.7 to 5.5 0.1 MSOP-8 $1.35 INA126 µPower, < 1V V
SAT
, Low Cost 5 to 10000 0.012 25 250 3 83 9 35 2.7 to 36 0.2
DIP/SO/MSOP-8
$1.05
INA2126 Dual INA126 5 to 10000 0.012 25 250 3 83 9 35 2.7 to 36 0.2
DIP/SO/MSOP-16
$1.70
INA118 Precision, Low Drift, Low Power
2
1 to 10000 0.002 5 55 0.7 107 70 10 2.7 to 36 0.385 DIP-8, SOIC-8 $4.15
INA331 RRO, Wide BW, SHDN, Wide Temp 5 to 1000 0.01 0.01 500 5
1
90 2000 46 2.7 to 5.5 0.5 MSOP-8 $1.10 INA2331 Dual INA331 5 to 1000 0.01 0.01 1000 5
1
80 2000 46 2.7 to 5.5 0.5 TSSOP-14 $1.80 INA125 Internal Ref, Sleep Mode
2
4 to 10000 0.01 25 250 2 100 4.5 38 2.7 to 36 0.525 DIP-8, SOIC-16 $2.05
Single-Supply, Low Input Bias Current, IB< 50pA
INA155 Low Offset, RRO, Wide Temp, SR = 6.5V/µs 10, 50 0.015 0.01 1000 5
1
86 110 40 2.7 to 5.5 2.1 MSOP-8 $1.10 INA156 Low Offset, RRO, Low Cost, Wide Temp, SR = 6.5V/µs 10, 50 0.015 0.01 8000 5
1
86 110 40 2.7 to 5.5 2.1 SOIC-8, $0.95 INA321 RRO, SHDN, Low Offset, Gain Error, Wide Temp 5 to 1000 0.01 0.01 1000 7
1
90 50 100 2.7 to 5.5 0.06 MSOP-8 $1.10 INA2321 Dual INA321 5 to 1000 0.01 0.01 1000 7
1
90 50 100 2.7 to 5.5 0.06 TSSOP-14 $1.75 INA322 RRO, SHDN, Wide Temp, Low Cost 5 to 1000 0.01 0.01 10000 7 60 50 100 2.7 to 5.5 0.06 MSOP-8 $0.95 INA2322 Dual INA322 5 to 1000 0.01 0.01 10000 7 60 50 100 2.7 to 5.5 0.06 TSSOP-14 $1.50 INA331 RRO, Wide BW, SHDN, Wide Temp 5 to 1000 0.01 0.01 500 5
1
90 2000 46 2.7 to 5.5 0.5 MSOP-8 $1.10 INA2331 Dual INA331 5 to 1000 0.01 0.01 1000 5
1
80 2000 46 2.7 to 5.5 0.5 TSSOP-14 $1.80 INA332 RRO, Wide BW, SHDN, Wide Temp, Low Cost 5 to 1000 0.01 0.01 10000 7
1
60 500 100 2.7 to 5.5 0.1 MSOP-8 $0.85 INA2332 Dual INA332 5 to 1000 0.01 0.01 10000 7
1
60 500 100 2.7 to 5.5 0.1 TSSOP-14 $1.35
Single-Supply, Precision, VOS< 300µV, Low VOSDrift
INA118 Precision, Low Drift, Low Power
2
1 to 10000 0.002 5 55 0.7 107 70 10 2.7 to 36 0.385 DIP-8, SOIC-8 $4.15 INA326 RRIO, Auto- Zero, CM > Supply, Low Drift 0.1 to 10000 0.01 2 100 0.4 100 1 33 2.7 to 5.5 3.4 MSOP-8 $1.80 INA327 RRIO, Auto-Zero, SHDN, CM > Supply, Low Drift 0.1 to 10000 0.01 2 100 0.4 100 1 33 2.7 to 5.5 3.4 MSOP-10 $1.95 INA337 RRIO, Auto-Zero, Low Drift, CM > Supply, 0.1 to 10000 0.01 2 100 0.4 106 1 33 2.7 to 5.5 3.4 MSOP-8 $1.80
Wide Temp
INA338 RRIO, Auto-Zero, Low Drift, CM > Supply, 0.1 to 10000 0.01 2 100 0.4 106 1 33 2.7 to 5.5 3.4 MSOP-10 $1.95
SHDN, Wide Temp INA122 µPower, RRO, CM to GND 5 to 10000 0.012 25 250 3 90 5 60 2.2 to 36 0.085 DIP-8, SOIC-8 $2.10 INA125 Internal Ref, Sleep Mode
2
4 to 10000 0.01 25 250 2 100 4.5 38 2.7 to 36 0.525 DIP-8, SOIC-16 $2.05
INA126 µPower, < 1V V
SAT
, Low Cost 5 to 10000 0.012 25 250 3 83 9 35 2.7 to 36 0.2 DIP/SO/MSOP-8 $1.05
INA2126 Dual INA126 5 to 10000 0.012 25 250 3 83 9 35 2.7 to 36 0.2
DIP/SO/MSOP-16
$1.70
Signal Amplifiers for Temperature Control IB(nA) Temp Error
3
1⁄F Noise
INA330 Optimized for Precision 10k 0.23 0.009°C1— 1 0.0001°C pp12.7 to 5.5 3.6 MSOP-10 $1.55
Thermistor Applications
1
Typical
2
Internal +40V input protection
3
–40°C to +85°C
*
Suggested resale price in U.S. dollars in quantities of 1,000.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Dual-Supply Instrumentation Amplifiers
33
Dual-Supply Instrumentation Amplifiers Selection Guide
Input Offset CMRR BW I
Q
Non Bias at Offset at at Noise Per
Linearity Current G = 100 Drift G = 100 G = 100 1kHz Power Amp
(%) (nA) (µV) (µV/°C) (dB) (kHz) (nV/Hz) Supply (mA)
Device Description Gain (max) (max) (max) (max) (min) (min) (typ) (V) (max) Package(s) Price*
Dual-Supply, Low-Power, IQ< 850µA per Instrumentation Amp
INA122 µPower, RRO, CM to GND 5 to 10000 0.012 25 250 3 90 5 60 ±1.3 to ±18 0.085 DIP-8, SOIC-8 $2.10 INA1262µPower, < 1V V
SAT
, Low Cost 5 to 10000 0.012 25 250 3 83 9 35 ±1.35 to ±18 0.2 DIP/SO/MSOP-8 $1.05
INA118 Precision, Low Drift, Low Power
1
1 to 10000 0.002 5 55 0.7 107 70 10 ±1.35 to ±18 0.385 DIP-8, SOIC-8 $4.15
INA121 Low Bias, Precision, Low Power
1
1 to 10000 0.005 0.05 500 5 100 50 20 ±2.25 to ±18 0.525 DIP-8, SO-8 $2.50
INA125 Internal Ref, Sleep Mode
1
4 to 10000 0.01 25 250 2 100 4.5 38 ±1.35 to ±18 0.525 DIP-8, SOIC-16 $2.05
INA1282Precision, Low Noise, Low Drift
1
1 to 10000 0.002 5 60 0.7 120 200 8 ±2.25 to ±18 0.8 DIP-8, SOIC-8 $3.05
INA129 Precision, Low Noise, Low Drift,
1
1 to 10000 0.002 5 60 0.7 120 200 8 ±2.25 to +18 0.8 DIP-8, SOIC-8 $3.05
AD620 Second Source
INA1412Precision, Low Noise, Low Power, 10, 100 0.002 5 50 0.5 110 200 8 ±2.25 to +18 0.8 DIP-8, SOIC-8 $3.55
Pin Compatible with AD62121
Dual-Supply, Low Input Bias Current, IB< 50pA
INA110 Fast Settle, Low Noise, Wide BW 1, 10, 100, 0.01 0.05 280 2.5 106 470 10 ±6 to ±18 4.5 DIP-16, SOIC-16 $7.00
200, 500
INA121 Precision, Low Power
1
1 to 10000 0.005 0.05 500 5 100 50 20 ±2.25 to ±18 0.525 DIP-8, SO-8 $2.50 INA111 Fast Settle, Low Noise, Wide BW 1 to 1000 0.005 0.02 520 6 106 450 10 ±6 to ±18 4.5 DIP-8, SO-16 $4.20 INA116 Ultra Low IB 3fA (typ), with Buffered 1 to 1000 0.01 0.0001 5000 40 80 70 28 ±4.5 to ±18 1.4 DIP-16, SO-16 $4.20
Guard Drive Pins
1
Dual-Supply, Precision VOS< 300µV, Low VOSDrift
INA114 Precision, Low Drift
1
1 to 10000 0.002 2 50 0.25 110 10 11 ±2.25 to ±18 3 DIP-8, SO-16 $4.20 INA115 Precision, Low Drift, w/Gain Sense Pins11 to 10000 0.002 2 50 0.25 120 10 11 ±2.25 to ±18 3 SO-16 $4.20 INA131 Low Noise, Low Drift
1
100 0.002 2 50 0.25 110 70 12 ±2.25 to ±18 3 DIP-8 $3.80
INA1412Precision, Low Noise, Low Power, 10, 100 0.002 5 50 0.5 110 200 8 ±2.25 to ±18 0.8 DIP-8, SOIC-8 $3.55
Pin Compatible with AD62121
INA118 Precision, Low Drift, Low Power
1
1 to 10000 0.002 5 55 0.7 107 70 10 ±1.35 to ±18 0.385 DIP-8, SOIC-8 $4.15 INA1282Precision, Low Noise, Low Drift
1
1 to 10000 0.002 5 60 0.7 120 200 8 ±2.25 to ±18 0.8 DIP-8, SOIC-8 $3.05 INA129 Precision, Low Noise, Low Drift, 1 to 10000 0.002 5 60 0.7 120 200 8 ±2.25 to ±18 0.8 DIP-8, SOIC-8 $3.05
AD620 Second Source
1
INA122 µPower, RRO, CM to GND 5 to 10000 0.012 25 250 3 90 5 60 ±1.3 to ±18 0.085 DIP-8, SOIC-8 $2.10 INA125 Internal Ref, Sleep Mode
1
4 to 10000 0.01 25 250 2 100 4.5 38 ±1.35 to ±18 0.525 DIP-8, SOIC-16 $2.05 INA1262µPower, < 1V V
SAT
, Low Cost 5 to 10000 0.012 25 250 3 83 9 35 ±1.35 to ±18 0.2 DIP/SO/MSOP-8 $1.05
INA101 Low Noise, Wide BW, Gain Sense Pins, 1 to 1000 0.002 30 250 0.25 100 25 13 ±5 to ±20 8.5 PDIP-14, SO-16 $7.95
Wide Temp
INA110 Fast Settle, Low Noise, Low Bias, Wide BW 1, 10, 100, 0.01 0.05 280 2.5 106 470 10 ±6 to ±18 4.5 CDIP-16 $7.00
200, 500
Dual-Supply, Lowest Noise
INA103 Precision, Fast Settle, Low Drift, Audio, 1, 100 0.00063 12000 255 1.23 100 800 1 ±9 to ±25 13 DIP-16, SO-16 $5.00
Mic Pre Amp, THD+N = 0.0009%
INA163 Precision, Fast Settle, Low Drift, Audio, 1 to 10000 0.00063 12000 300 1.23 100 800 1 ±4.5 to ±18 12 SOIC-14 $2.50
Mic Pre Amp, THD+N = 0.002%
INA166 Precision, Fast Settle, Low Drift, Audio, 2000 0.005 12000 300 2.53 100 450 1.3 ±4.5 to ±18 12 SO-14 Narrow $5.95
Mic Pre Amp, THD+N = 0.09%
INA217 Precision, Low Drift, Audio, Mic PreAmp, 1 to 10000 0.00063 12000 300 1.23 100 800 1.3 ±4.5 to ±18 12 DIP-8, SO-16 $2.50
THD+N = 0.09%, SSM2017 Replacement
1
Internal +40V input protection.
2
Parts also available in dual version.
*
Suggested resale price in U.S. dollars in quantities of 1,000.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
34
Amplifiers
Programmable Gain Amplifiers
Programmable gain instrumentation amplifiers (PGAs) are extremely versatile data acquisition input amplifiers that provide digital control of gain for improved accuracy and extended dynamic range. Many have inputs that are protected to ±40V even with the power supply off. A single input amplifier type can be connected to a variety of sensors or signals. Under processor control, the switched gain extends the dynamic range of the system.
All PGA-series amps have TTL- or CMOS­compatible inputs for easy microprocessor interface. Inputs are laser trimmed for low offset voltage and low drift to allow use without the need of external components.
Design Considerations Primary
Digitally-selected gain required—two
pins allow the selection of up to four different gain states. A PGA202 and PGA203 can be put in series for greater gain selection.
Non-linearity (accuracy)—depends heavily
on what is being driven. A 16-bit converter will require significantly better accuracy (i.e., lower non-linearity) than a 10-bit converter.
Secondary
Gain error and drift—for higher gain,
high-precision applications will require closer attention to drift and gain error.
Input bias current— high source impedance
applications often require FET-input amps to minimize bias current errors.
Technical Information
The PGA206 provides binary gain steps of 1, 2, 4 and 8V/V, selected by CMOS- or TTL-compatible inputs. The PGA207 has gains of 1, 2, 5 and 10V/V, adding a full decade to the system dynamic range. The low input bias current, FET-input stage assures that series resistance of the multiplexer does not introduce errors. Fast settling time (3.5µs to 0.01%) allows fast polling of many channels.
The PGA204 and PGA205 have precision bipolar input stages especially well suited to low-level signals. The PGA205 has gain steps of 1, 2, 4 and 8.
Typical Applications
• Data acquisition
• Auto-ranging circuits
• Remote instrumentation
• Test equipment
• Medical/physiological instrumentation
• General analog interface boards
Connecting two programmable gain amps can provide binary gain steps G = 1 to G = 64.
Digitally Programmable Gain Amplifiers Selection Guide
Non CMRR BW Noise
Linearity Offset at at at
at Offset Drift G = 100 G = 100 1kHz Power I
Q
G = 100 (µV) (µV/°C) (dB) (kHz) (nV/ Hz) Supply (mA)
Device Description Gain (%) (max) (max) (max) (min) (typ) (typ) (V) (max) Package(s) Price
*
PGA103 Precision, Single-Ended Input 1, 10, 100 0.01 500 2 (typ) 250 11 ±4.5 to ±18 3.5 SOIC-8 $4.35 PGA202 High Speed, FET-Input, 50pA I
B
1, 10, 100, 0.012 1000 12 92 1000 12 ±4.5 to ±18 6.5 DIP-14 $7.75
1000
PGA203 High Speed, FET-Input, 50pA I
B
1, 2, 4, 8 0.012 1000 12 92 1000 12 ±4.5 to ±18 6.5 DIP-14 $7.75
PGA204 High Precision, Gain Error: 0.25% 1, 10, 100, 0.002 50 0.25 110 10 13 ±4.5 to ±18 6.5 SOIC-16, PDIP-16 $7.25
1000 PGA205 Gain Drift: 0.024ppm/°C 1, 2, 4, 8 0.002 50 0.25 95 100 15 ±4.5 to ±18 6.5 SOIC-16, PDIP-16 $7.25 PGA206 High Speed, FET-Input, 100pA I
B
1, 2, 4, 8 0.002 1500 2 (typ) 95 600 18 ±4.5 to ±18 13.5 DIP-16, SOIC-16 $10.80
PGA207 High Speed, FET-Input, 100pA I
B
1, 2, 5, 10 0.002 1500 2 (typ) 95 600 18 ±4.5 to ±18 13.5 DIP-16, SOIC-16 $11.85
PGA309 0.1% Digitally Calibrated 8 to 11 0.01 3000 5 (typ) 20 60 210 +2.7 to +5.5 1.6 TSSOP-16 $2.95
Bridge Sensor Conditioner, Voltage Output
*
Suggested resale price in U.S. dollars in quantities of 1,000.
+
V
IN
A
1
PGA205
A
V
IN
O
GAIN
1 2 4
8 16 32 64
A
1
PGA205
A
O
A
A
A
3
2
0
0
0
1
1
0
1
1
1
1
1
1
1
1
A
1
0
0
0
0
0
0
0
0
0
0
1
1
0
1
1
V
O
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Voltage-Controlled Gain Amplifiers
35
Two-Channel Variable Gain Amplifier
VCA2615
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/VCA2615
VCA2615 functional block diagram.
Key Features
• Ultra-low noise LNP: 0.7nV/ Hz
• Programmable LNP gains
• Buffered LNP outputs for CW
• VGA gain control range: 52dB
• Linear control response: 22dB/V
• Adjustable output clipping
• Bandwidth: 42MHz
• Single supply: 5V
• Packaging: Small QFN-48 (7x7mm2)
The VCA2615 is a two-channel variable gain amplifier well suited to high-end ultrasound systems. Excellent performance enables use in high-performance applications. Each channel consists of a programmable low noise preamplifier (LNP) and a variable gain amplifier (VGA).
The voltage-controlled gain amplifier (VCA) provides linear dB gain and gain-range control with high impedance inputs. Available in single, dual and octal configurations, the VCA series is designed to be used as a flexible gain-control element in a variety of electronic systems. With a broad gain-control range, both gain and attenuation control are provided for maximum flexibility.
Design Considerations Primary
• Input frequency
• Noise (nV/ Hz)
• Variable gain range
Secondary
• Number of channels
• Distortion—low second harmonic and third harmonic distortion
• Level of integration
• Per channel power consumption
Technical Information
The broad attenuation range can be used for gradual or controlled channel turn-on or turn­off where abrupt gain changes can create artifacts and other errors.
Typical Applications
• Ultrasound systems
• Medical and industrial
• Test equipment
VCA2617 functional block diagram.
V
AV
CNTL
In A+
Clamping
Clamping
Circuitry
In A–-
In B+
In B –
V- I I- V
V- I I- V
BV
V
CNTL
Gain
A
CLMP
Circuitry
CLMP
Select A
B
Gain
Select B
C
A
EXT
Out A+
Out A–
Out B+
Out B–
B
C
EXT
LNP
FB1 FB2 FB3 FB4
OUT
Feedback
Resistors
+1
LNPIN+
LNP
LNPIN–
(3, 12, 18, 22dB)
1/2 VCA2615
G1 G2 V
VCA2615
LNP
+ VCAIN+ VCAIN– H/L
OUT
+1
MUX
VCAINSEL
52dB
Range
(0dB or
+6dB)
VGA
CNTLVCLMP
VCA
VCA
OUT
OUT
+
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
Voltage-Controlled Gain Amplifiers
36
OutP
(1)
OutN
(1)
LNA
IN1
LNA
V
LNA
V
LNA
Attenuator
Analog
Control
PGA
2-Pole
Filter
CW
(1-10)
D
(0-3)
CW Processor
10 x 8
FIFO
OutP
(8)
OutN
(8)
LNA
IN8
LNA
Attenuator
PGA
DATA
CLK
CS
Serial
Interface
2-Pole
Filter
8-Channel Variable Gain Amplifier
VCA8617
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/VCA8617
The VCA8617 is an 8-channel variable gain amplifier well suited for portable ultrasound applications.
Key Features
• Low noise LNA: 1.0nV/ Hz
• Low-power: 103mW/channel
• Integrated input clamp diodes
• Integrated CW switch matrix
• Programmable gain and attenuator settings
• Serial data port
• Integrated 2-pole low-pass filter
• Differential outputs
• Single supply: 3V
• Packaging: TQFP-64
The VCA8617 is an 8-channel LNA and VCA with integrated continuous wave (CW) switch matrix circuitry and low-pass filtering. This high level of integration reduces cost and lessens the need for external circuitry.
Voltage-Controlled Gain Amplifiers Selection Guide
V
N
Bandwidth Specified Number of Variable Gain
Device (nV/ Hz) (MHz) (typ) at VS(V) Channels Range (dB) Package Price
*
VCA2612 1.25 40 5 2 45 TQFP-48 $12.50 VCA2613 1 40 5 2 45 TQFP-48 $10.25 VCA2614 4.8 40 5 2 40 TQFP-32 $8.35 VCA2616/2611 1 40 5 2 45 TQFP-48 $10.25 VCA810 2.4 30 ±5 1 80 SO-8 $5.75 VCA2618 5.5 40 5 2 45 TQFP-32 $8.40 THS7530 1.27 300 5 1 46 HTSSOP-14 $3.65 VCA8613 1.2 14 3 8 40 TQFP-64 $25.40 VCA2619 5.9 40 5 2 50 TQFP-32 $8.40
VCA2615 0.7 42 5 2 52 QFN-48 $10.25 VCA2617 3.8 50 5 2 48 QFN-32 $8.40
VCA8617 1 15 3 8 40 TQFP-64 $24.00
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Audio Amplifiers
37
Consumers are enjoying new ways to listen to music, books and news, while demanding more flexibility, better quality and multifunctional products. There is an ever-increasing demand for high-end entertainment for the everyday consumer. The market expects the best listening experience from any audio format and source, mobile or stationary and at a competitive price.
By offering flexible, cost-efficient, end-to-end audio solutions, TI provides OEMs and ODMs with faster time-to-market and one-stop shopping. TI's complete audio solutions include best-in-class silicon, systems expertise, software and support. By leveraging the programmability, performance headroom and design flexibility of TI's leading DSP and analog technologies, customers have the ability to build audio products with more functionality that offer a true, lifelike sound experience at a lower overall system cost.
Design Considerations
Primary
Output power—supply voltage and load
impedance limit the level of output power (i.e., volume) an audio power amp (APA) can drive. Always verify that the desired output power is theoretically possible with the equation: where VOis the RMS voltage of the output signal and RLis the load impedance.
Output configuration—there are two types of
output configurations, single-ended (SE) and bridge-tied load (BTL). An SE configuration is where one end of the load is connected to the APA and the other end of the load is connected to ground. Used primarily in headphone applications or where the audio power amplifier and speaker are in different enclosures. A BTL configuration is where both ends of the load are connected to an APA. This configuration effectively quadruples the output power capability of the system
and is used primarily in applications that are space constrained and where the APA and speaker are in the same enclosure.
Total Harmonic Distortion + Noise (THD+N)
harmonic distortion is distortion at frequen­cies that are whole number multiples of the test tone frequency. THD+N is typically specified for rated output power at 1kHz. Values below 0.5 percent to 0.3 percent are negligible to the untrained ear.
Amplifier technology (Class-D and Class-AB)
Class-D and Class-AB are the most common APAs in consumer electronics, because of their great performance and low cost. Class-D amps are very efficient and provide the longest battery life and lowest heat dissipation. Class-AB amps offer the greatest selection of features (e.g., digital volume control and bass boost).
Secondary
Digital volume control—this input changes
the gain of the APA when digital high or low pulses are applied to the UP and DOWN pins of the device.
DC volume control—internal gain
settings that are controlled by DC voltage applied to the VOLUME pin of the IC.
Integrated gain settings—the internal gain
settings are controlled via the input pins, GAIN0and GAIN
1,
of the IC.
DEPOP—circuitry internal to the APA. It
minimizes voltage spikes when the APA turns on, off, or transitions in or out of shutdown mode.
MUX—allows two different audio sources to
the APA that are controlled independently of the amplifier configuration.
Shutdown—circuitry that places the APA in a
very low power consumption standby state.
Technical Information
TI APAs are easy to design with, requiring only a few external components.
Power supply capacitors—CV
DD
minimizes THD by filtering off the low frequency noise and the high frequency transients.
Input capacitors—in the typical application, CIN,
is required to allow the amplifier to bias the input signal to the proper dc level for opti­mum operation. CINis usually in the 0.1µF to 10µF range for good low-frequency response.
Bypass capacitor—C
BYPASS
controls the start up time and helps to reduce the THD. Typically, this capacitor is ten times larger than the input decoupling capacitors (CIN).
Layout—by respecting basic rules, Class-D
amplifiers layout can be made easy. Decoupling caps must be close to the device, the output loop must be small to avoid the use of a filter and the differential input traces must be kept together to limit the RF rectification. Analog VDDand switching V
DD
need to be separated back to supply source.
Migration path—APA products are in a
constant evolution moving from Class-AB mono speaker drivers to optimized stereo Class-D amplifiers with advanced features. The latest generation is the most cost effective for the application.
TI’s New Audio Quick Search Tools!
On TI’s Audio Home Page, we have added a great new feature! Our Audio Quick Search
Tool allows you to easily find the Audio device based on your design specifications. It’s
easy to use, just go to www.ti.com/audio and select one of the available tools, such
as Audio Amplifiers, Converters or CODECs. Select your options and the suggested
device will take you directly to the product folder.
2
V
O
PO =
R
L
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
Audio Amplifiers
38
PurePath Digital™ Power Stages
PurePath Digital™ PWM Processors
Class-D Audio Power Amplifiers
PurePath Digital™ Power Stages
130
110
TAS5132 TAS5142
Dynamic Range (dB)
105
PurePath Digital™ PWM Processors
TAS5122 TAS5112A TAS5111A
TAS5508B
• 8 channel
• 48-bit audio processing
• Volume, EQ, treble/bass, loudness
• PSU volume control
• 102-dB dynamic range
TAS5001/10/12
• 24 bit, stereo
• 94-/96-/102-dB dynamic range
• 32- to 192-kHz
TAS5261*
*Using power supply volume control
TAS5152
10302003000
Power per Channel (W)
TAS5162
FEATURED PRODUCTS
Key
With TAS5518 PWM Processor
With TAS5086 PWM Processor
Pin-for-Pin Compatible
TAS5261
TAS5518
• 8 channel
• 48-bit audio processing
• Volume, EQ, treble/bass, loudness
• PSU volume control
• 110-dB dynamic range
FEATURED PRODUCT
TAS5086
• 6 channel
• Volume, channel mapping
• Bass management
• 107-dB dynamic range
TAS5028
• 8 channel
• 48-bit audio processing
TAS5504A
• 4 channel
• 48-bit audio processing
• Volume, EQ, treble/bass, loudness
• PSU volume control
• 102-dB dynamic range
• Volume, channel mapping
• PSU volume control
• 102-dB dynamic range
Key
Multichannel, Pin/SW Compatible
Multichannel
Stereo
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Audio Amplifiers
39
Audio Amplifiers
Class-D Audio Power Amplifiers
Power Half Power Min. Load
Output Supply (V) THD+N PSRR
Impedance
Package
Device Description Power (W) (min) (max) at 1kHz (%) (dB) (Ω) Package(s) Symbolization Price
*
TPA3120D2 Stereo, High Output Power, Internal Gain, Single-Ended Outputs 25 10 30 0.08 55 4 HTSSOP-24 TPA3120D2 $3.20
at 2 kHz
TPA3200D1 Mono, Digital Input, High Power, Mute, Internal Gain 20 8 18 0.2 73 4 HTSSOP-44 TPA3200D1 $2.95 TPA3100D2 Stereo, High Output Power, Mute, Internal Gain, Auto Re-Start,
Wide Supply Voltage 20 10 26 0.1 80 4 HTQFP-48, QFN-48 TPA3100D2 $3.50 TPA3001D1 Mono, High Output Power, Internal Gain, Differential Input 20 8 18 0.06 73 4 HTSSOP-24 TPA3001D1 $2.50 TPA3107D2 Stereo, Class-D 15 10 26 0.08 70 6 HTQFP-64 TPA3107D2 $3.35 TPA3004D2 Stereo, Volume Control 12 8.5 18 0.1 80 4 HTQFP-48 TPA3004D2 $3.25 TPA3101D2 Stereo, Mute, Internal Gain, Auto Re-Start, Wide Supply Voltage 10 10 26 0.1 80 4 HTQFP-48, QFN-48 TPA3101D2 $3.10 TPA3008D2 Stereo, Class-D 10 8.5 18 0.1 80 8 HTQFP-48 TPA3008D2 $3.10 TPA3002D2 Stereo, Medium Power Class-D with Volume Control 9 8.5 14 0.06 80 8 HTQFP-48 TPA3002D2 $3.30
TPA3007D1 Mono, Medium Power, Internal Gain 6.5 8 18 0.2 73 8 TSSOP-24 TPA3007D1 $1.95
TPA3005D2 Stereo, Medium Power 6 8 18 0.1 80 8 HTQFP-48 TPA3005D2 $2.95 TPA3003D2 Stereo, Volume Control, Lower Max Voltage 3 8.5 14 0.2 80 8 TQFP-48 TPA3003D2 $3.00 TPA2008D2 Stereo, Medium Power, Volume Control, Ideal for Docking Stations 3 4.5 5.5 0.05 70 3 TSSOP TPA2008D2 $1.80 TPA2000D1 Mono, Internal Gain, Cost Effective Solution 2.7 2.7 5.5 0.08 77 4 TSSOP-16, BGA-48 TPA2000D1 $1.05 TPA2010D1 Mono, Fully Differential, 1.45 mm x 1.45 mm WCSP Package, High Power 2.5 2.5 5.5 0.2 75 4 WCSP AJZ (Pb) $0.55
AKO (Pb-Free) TPA2000D2 Stereo, Mediuim Power, Ideal for Docking Stations 2.5 4.5 5.5 0.05 77 3 TSSOP TPA2000D2 $1.45 TPA2012D2 Smallest Stereo Amp in 2 mm x 2 mm WCSP Package 2.1 2.5 5.5 0.2 75 4 WCSP, QFN AKR, AKS $0.95
TPA2032D1 Smallest Solution Size, Mono, Fully Differential, Internal Gain 2V/V 2.1 2.5 5.5 0.2 75 4 WCSP BPX $0.55 TPA2033D1 Smallest Solution Size, Mono, Fully Differential, Internal Gain 3V/V 2.1 2.5 5.5 0.2 75 4 WCSP BPY $0.55 TPA2034D1 Smallest Solution Size, Mono, Fully Differential, Internal Gain 4V/V 2.1 2.5 5.5 0.2 75 4 WCSP BPZ $0.55
TPA2000D4 Stereo with Headphone Amp, Medium Power, Ideal for Docking Stations 2.5 3.7 5.5 0.1 70 4 TSSOP TPA2000D4 $1.65
TPA2013D1 Mono, Integrated Boost Converter, High and Constant Power 1.8 1.6 5.5 0.2 90 8 QFN, WCSP BTI, BTH $1.40
TPA2006D1 Mono, Fully Differential, 1.8V Compatible Shutdown Voltage 1.45 2.5 5.5 0.2 75 8 QFN BTQ $0.49 TPA2005D1 Mono, Fully Differential, Most Package Options 1.4 2.5 5.5 0.2 75 8 MicroStar PB051 (Pb), $0.49
Junior™ BGA, AAFI (Pb-Free),
QFN, BIQ,
MSOP BAL
TPA2001D2 Stereo, Lower Power, Ideal for Docking Stations 1.25 4.5 5.5 0.08 77 8 TSSOP TPA2001D2 $1.20
Class-AB Headphone Audio Power Amplifiers
TPA6120A2
Stereo, Hi-Fi, Current Feedback, 80 mW into 600
1.5 10 30 0.0005 75 32 SO-20 6120A2 $1.90
from a ±12V Supply at 0.00014% THD+N
TPA6112A2
Stereo, Differential Inputs, 10µA ISD 0.15 2.5 5.5 0.25 83 8 MSOP-10 APD $0.39
TPA6111A2
Low Cost, Stereo Headphone, SOIC Package, 1µA ISD 0.15 2.5 5.5 0.25 83 8 SOIC-8, MSOP-8
TPA6111A2, AJA
$0.29
TPA6110A2
Stereo Headphone, 10µA ISD 0.15 2.5 5.5 0.25 83 8 MSOP-8 AIZ $0.39
TPA6130A2
DirectPath™, Stereo with I2C Volume Control 0.138 2.5 5.5 0.0055 109 16 QFN, WCSP BSG, BRU $1.45 TPA4411 DirectPath Stereo, Internal Gain 0.08 1.8 4.5 0.08 80 16 DSBGA-16, QFN-20 AKT, AKQ $0.70 TPA152 Hi-Fi, Stereo, Mute 0.075 4.5 5.5 0.007 81 32 SOIC-8 TPA152 $0.55 TPA6102A2
Ultra-Low Voltage, Stereo, Fixed Gain (14dB) 0.05 1.6 3.6 0.1 72 16 SOIC-8, MSOP-8 TPA6102A2 $0.35 TPA6101A2
Ultra-Low Voltage, Stereo, Fixed Gain (2dB) 0.05 1.6 3.6 0.1 72 16 SOIC-8, MSOP-8 TPA6101A2, $0.35
AJM
TPA6100A2
Ultra-Low Voltage, Stereo, External Resistors 0.05 1.6 3.6 0.1 72 16 SOIC-8, MSOP-8 TPA6100A2, $0.35
AJL
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
Audio Power Amplifiers
40
Audio Amplifiers
Class-AB Audio Power Amplifiers
Power Half Power Min. Load
Output Supply (V) THD+N PSRR Impedance Package
Device Description Power (W) (min) (max) at 1kHz (%) (dB) (Ω) Package(s) Symbolization
Price
*
TPA6030A4 Stereo with Stereo HP, Wide Supply Voltage, Low Power, Volume Control, 3 7 15 0.06 60 16 HTSSOP-28 TPA6030A4 $1.40
Fully Differential TPA6017A2 Stereo, Cost Effective, Internal Gain, Fully Differential 2.6 4.5 5.5 0.1 77 3 HTSSOP-20 TPA6017A2 $0.99 TPA6011A4 Stereo with Stereo HP, Volume Control, Fully Differential 2.6 4 5.5 0.06 70 3 HTSSOP-24 TPA6011A4 $1.20 TPA6010A4 Stereo with Stereo HP, Volume Control and Bass Boost, Fully Differential 2.6 4.5 5.5 0.06 67 3 HTSSOP-28 TPA6010A4 $2.25 TPA1517 Stereo, Mute, Medium Power, Low Cost, DIP Package, Single Ended 6 9.5 18 0.15 65 4 PDIP-20, SO-20 TPA1517 $0.85 TPA6021A4 Stereo with Stereo HP, Volume Control, Fully Differential 2 4 5.5 0.19 70 4 PDIP-20 TPA6021A4 $1.00 TPA6020A2 Stereo, Fully Diferential, Low Voltage, Smallest Package 2.8 2.5 5.5 0.05 85 3 QFN-20 RGN $1.15
TPA6040A4 Stereo with DirectPath™ HP and Integrated 4.75V LDO 2.6 4.5 5.5 0.08 70 3 QFN-32 TPA6040A4 $1.15
TPA6211A1 Mono, Fully Differential, Highest Power 3.1 2.5 5.5 0.05 85 3 MSOP, QFN AYK, AYN $0.55 TPA6203A1 Mono, Fully Differential, Lower Cost Solution 1.5 2.5 5.5 0.06 90 8 MicroStar AADI (Pb) $0.45
Junior™ BGA AAEI (Pb-Free) TPA6204A1 Mono, Fully Differential, High Power 1.7 2.5 5.5 0.05 85 8 QFN AYJ $0.49 TPA6205A1 Mono, Fully Differential, 1.8V Compatible Shutdown Voltage 1.5 2.5 5.5 0.06 90 8 MSOP, QFN, AAPI, AAOI, $0.45
BGA AANI TPA751 Mono, Differenital Inputs, Active Low 0.9 2.5 5.5 0.15 78 8 SOIC, MSOP TPA751, ATC $0.43 TPA731 Mono, Differential Inputs, Active High 0.9 2.5 5.5 0.15 78 8 SOIC, MSOP TPA731, AJC $0.43 TPA721 Mono, Single Ended Inputs, Active High 0.9 2.5 5.5 0.15 85 8 SOIC, MSOP TPA721, ABC $0.43 TPA711 Mono, Single Ended Inputs, Active High, Mono Headphone 0.9 2.5 5.5 0.15 85 8 SOIC, MSOP TPA711, ABB $0.43 TPA0233 Mono with Stereo Headphone, Summed Inputs 2.7 2.5 5.5 0.06 75 4 MSOP AEJ $1.05 TPA0253 Mono with Stereo Headphone, Summed Inputs 1.25 2.5 5.5 0.1 75 8 MSOP AEL $0.90 TPA0172 Stereo with Stereo Headphone, Mute Function, 2.0 4.5 5.5 0.08 75 4 TSSOP TPA0172 $2.45
I2C Volume Control
TPA0212 Stereo with Stereo Headphone, Internal Gain, 2.6 4.5 5.5 0.15 77 3 TSSOP TPA0212 $1.10
Low-Cost Computing Solution
PurePath Digital™ PWM Processors
Dynamic Half Power Resolution
Device Description Frequency (MHz) Range (dB) THD+N at 1kHz (%) (Bits) Package Price
*
TAS5010 Stereo Modulator Only 32 to 192 96 < 0.08 16, 20, 24 TQFP-48 $3.00 TAS5012 Stereo Modulator Only with Higher Dynamic Range 32 to 192 102 < 0.06 16, 20, 24 TQFP-48 $5.55 TAS5504A 4-Channel, EQ, Bass Management, Dynamic Range and Volume Control, HP Output 32 to 192 102 < 0.1 16, 20, 24 TQFP-64 $3.00 TAS5508B 8-Channel, EQ, Bass Management, Dynamic Range and Volume Control, HP Output 32 to 192 100 < 0.1 16, 20, 24 TQFP-64 $5.00 TAS5086 6-Channel, Bass Management, Tone and Volume Control 32 to 192 100 < 0.1 16, 20, 24 TSSOP-38 $1.60 TAS5518 8-Channel, Highest Dynamic Range, Record Line and HP Outputs, DSVC dds 32 to 192 110 < 0.1 16, 20, 24 TQFP-64 $7.95
24-dB Dynamic Range, EQ, Bass Management, Dynamic Range and Volume Control
PurePath Digital™ Power Stages
Device Description Power Channel(s) Half Power THD+N at 1kHz (%) Package(s) Price
*
TAS5261 Mono High Power 315 W (4 W) 1 0.05 SSOP-36 $5.25 TAS5162 Stereo High Power 200 W (6 W) 2 0.05 SSOP-36, HTSSOP-44 $4.95
TAS5152 High Power, Pin Compatible with TAS5142 125 W (4 W) 2 0.1 SSOP-36 $4.30 TAS5121 Mono High Power 100 W (4 W) 1 0.05 SSOP-36 $3.00 TAS5142 High Power, Pin Compatible with TAS5152 100 W (4 W) 2 0.1 SSOP-36, HTSSOP-44 $3.30 TAS5182 Controller Only, For Use with External FETs 100 W (6 W) 2 0.15 HTSSOP-56 $5.30 TAS5111A Mono Medium Power 70 W (4 W) 1 0.025 HTSSOP-32 $2.40 TAS5112A Stereo Medium Power 50 W (6 W) 2 0.025 HTSSOP-56 $4.00 TAS5186A Highest Integration Power Stage 30/60 W (6/3 W) 6 0.07 HTSSOP-44 $5.10 TAS5122 Stereo Low Power 30 W (6 W) 2 0.05 HTSSOP-56 $3.15 TAS5132 Stereo Low Power 25 W (6 W) 2 0.03 HTSSOP-44 $1.95
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Audio Amplifiers
41
124dB, Professional 2-Channel ADC
PCM4222
Get samples and datasheets at: www.ti.com/sc/device/PCM4222
PCM4222 functional block diagram.
Key Features
• 124dB dynamic-range output makes this the world’s highest performance ADC
• Multiple format output (modulator, DSD and PCM) allowing development of custom digital filters
124dB 6-bit modulator output
123dB DSD output
123dB PCM output
• Multichannel TDM mode enables flexibility in system partitioning
• 305mW power consumption at 48kHz
Applications
• Mixing consoles
• Musical instruments
• High-end AV
• Audio recording equipment
• Live-audio broadcasts
Audio ADCs are used in applications ranging from portable MP3 player docking stations to professional multichannel mixing consoles.
The PCM4222 is TI’s next-generation audio ADC and offers the best performance with the lowest power consumption in the industry. With modulator, PCM and DSD outputs, the PCM4222 enables superior design flexibility. TI’s advanced silicon technology provides 124dB of dynamic range with only 305mW of power consumption, enabling multiple channels without consuming the entire system’s heat budget. Added functionality such as TDM ports also supports multichannel designs.
Microphone Pre-Amplifiers
Gain Range Noise (EIN), Half Power THD+N Power Supply
Device Description (dB) G = 30 dB at 1kHz (%) (V) Package Price
*
PGA2500 Digitally Controlled, Fully Differential, High Performance, Low Noise, 0 dB, and 10 dB to –128 dBu 0.0004 ±5 SSOP-28$9.95
Wide Dynamic Range, On-Chip DC Servo Loop 65 dB in 1dB steps
Slew Rate GBW Half Power THD+N Power Supply
Device Description (V/µs) (MHz) at 1kHz (%) (V) Package(s) Price
*
INA163
Mono, Low Noise, Low Distortion, Current Feedback, Wide Bandwidth, Wide Range of Gain
15 8 0.0003 ±4.5 to ±18 SO-14 $2.50
INA217
Mono, Low Noise, Low Distortion, Current Feedback, Wide Bandwidth, Wide Range of Gain
15 8 0.004 ±4.5 to ±18 PDIP-8, SOIC-16 $2.50
*
Suggested resale price in U.S. dollars in quantities of 1,000.
PCM4222
See pages 98-100 for a complete
selection of Audio ADCs and DACs
REF
REF
V
V
V
GND
V
COM
V
COM
GND
V
V
IN
VINR–
L+
IN
L–
IN
L
REF
L
R R R
REF
R+
DF (MOD5) HPFDR (MOD1) HPFDL (MOD2)
LRCK BCK DATA
S/M FMT0 FMT1 OWL0 OWL1 SUB0 (WCKO) SUB1(MCKO) PCMEN FS0 (MOD3) FS1 (MOD4) OVFL OVFR MODEN DSDEN (MOD6)
DSDCLK DSDL DSDR
DSDMODE
RSTMCKI
L
Multi-Bit
Delta-Sigma
Reference
Multi-Bit
Delta-Sigma
Master Clock
and Timing
Digital
Filters
Audio
Serial Port
Control
and
Status
DSD
Engine
Reset Logic
1
2
CC
CC
V
V
AGND
AGND
AGND
AGND
AGND
AGND
DGND
DGND
V
DGND
DD
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
42
Amplifiers
Power Amplifiers and Buffers
TI power amplifiers solve tough high-voltage and high-current design problems in applica­tions requiring up to 100V and 10A output current. Most are internally protected against thermal and current overload, and some offer user-defined current limiting. The unity-gain buffer amplifier series provides slew rates up to 3600V/µs and output current to 250mA.
Design Considerations
Power dissipation—determines the
appropriate package type as well as the size of the required heat sink. Always stay within the specified operating range to maintain reliability of the power amps. Some power amps are internally protected against over­heating and overcurrent. The thermally­enhanced PowerPAD™ package provides greater design flexibility and increased thermal efficiency in a standard size IC
package. PowerPAD provides an extremely low thermal resistance path to a ground plane or special heatsink structure.
Full-power bandwidth—or large-signal band-
width, high FPBW is achieved by using power amps with high slew rate.
Current limit—be aware of the specified
operating area, which defines the relationship between supply voltage and current output. Both power supply and load must be appropriately selected to avoid thermal and current limits.
Thermal shutdown—the incorporation of
internal thermal sensing and shut-off will automatically shut-off the amplifier should the internal temperature reach a specified value.
Technical Information Power Amps
Unlike other designs using a power resistor in series with the output current path, the OPA547, OPA548 and OPA549 power amps sense current internally. This allows the current limit to be adjusted from near 0A to the upper limit with a control signal or a low-power resistor. This feature is included in the OPA56x series. The new 2A OPA567 comes in the tiny QFN package.
Buffer
The BUF634 can be used inside the feedback loop to increase output current, eliminate thermal feedback and improve capacitive load drive. When connected inside the feedback loop, the offset voltage and other errors are corrected by the feedback of the op amp.
100V, 25mA High-Voltage/High-Current Op Amp
OPA454
Get samples, datasheets and evaluation modules at: www.ti.com/sc/device/OPA454
OPA454 functional block diagram. *Expected Release Date 4Q 2007.
Key Features
• Single or dual supply: ±4V (8V) to ±50V (100V)
• Excellent output voltage swing: 1V to rails
• Enable/Disable pin
• Thermal warning flag and internal protection
• Low quiescent current: 5mA max
• 2mV offset voltage with 2µV/°C drift
Applications
• Test equipment
• Piezoelectric cells
• Transducer drivers
• Servo drivers
• Audio amplifiers
• High voltage compliance current sources
• General high voltage regulators/power
The OPA454 is a next generation OPA445 with high-voltage of up to 100V and relatively high­current drive up to 25mA. It is unity-gain stable and has a gain-bandwidth of 2.5MHz.
The OPA454 is internally protected against over-temperature and over-current conditions and includes a thermal warning flag. Other features are its excellent accuracy and wide output swing that can reach 1V to the supply rails. The output can also be independently disabled using the Enable/Disable pin.
Packaged in a small exposed metal pad package, the OPA454 is easy to heat sink over the specified extended industrial temperature range, –40°C to +85°C.
DAC8811
or
DAC7811
Protects DAC
During Slewing
+60V
0.1µF
25k
0 to 2mA
OPA454
VO = 0V to +50V
at 10mA
0.1µF
–12V
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Power Amplifiers and Buffers
43
OPA564
Thermal
Flag
Current
Limit
Flag
Enable
Shutdown
R
SET
V–
+In
–In
Current
Limit
Set
2A, High-Current Power Amplifier
OPA564
Get samples, datasheets and evaluation modules at: www.ti.com/sc/device/OPA564
OPA564 PowerPAD-down pinout.
*Expected Release Date 4Q 2007.
Key Features
• Single or dual supply: ±3.5V (7V) to ±13V (26V)
• Large output swing: 22VPPat 2A (24V supply)
• Thermal and over-current warning
• Adjustable current limit
• Output enable/disable control
• Slew rate: 20V/µs
• Packaging: HSOP-20 PowerPAD™
Applications
• Power-line communications
• Valve, actuator driver
• Synchro, servo driver
• Motor driver
• Power supply output amplifier
• Test equipment
• Transducer excitation
• General-purpose linear power booster
The OPA564 is a high-current operational amplifier ideal for driving up to 2A in reactive loads and provides high reliability in demanding power-line communications and motor control applications. It operates from a single or dual power supply of ±3.5V (7V) to ±13V (26V). In single supply operation, the input common-mode range extends below ground. The OPA564 is easy to heat sink over the specified extended industrial temperature range, –40°C to +125°C.
Power Amplifiers Selection Guide
I
OUT
V
S
Bandwidth Slew Rate I
Q
V
OS
VOSDrift I
B
Device (A) (V) (MHz) (V/µs) (mA) (max) (mV) (max) (µV/°C) (max) (nA) (max) Package(s) Price
*
OPA445/B 0.015 20 to 90 2 15 4.7 5 10 0.1 DIP-8, SO8, SO-8 PowerPAD™ $4.75 OPA452 0.05 20 to 80 1.8 7.2 6.5 3 5 0.1 TO220-7, DDPak-7 $2.55 OPA453 0.05 20 to 80 7.5 23 6.5 3 5 0.1 TO220-7, DDPak-7 $2.55
OPA454 0.025 8 to 100 2.5 10 5 5 5 0.1 SO-8 and HSOP-20 PowerPAD $2.75
OPA541 10 20 to 80 0.055 10 25 10 40 0.05 TO220-11, TO3-8 $11.10 OPA544 4 20 to 70 1.4 8 15 5 10 0.1 TO220-5, DDPak-5 $6.85 OPA2544 2 20 to 70 1.4 8 15 5 10 0.1 ZIP-11 $12.00 OPA547 0.5 8 to 60 1 6 15 5 25 500 TO220-7, DDPak-7 $4.35 OPA548 3 8 to 60 1 10 20 10 30 500 TO220-7, DDPak-7 $6.00 OPA549 8 8 to 60 0.9 9 35 5 20 500 ZIP-11, TO220-11 $12.00 OPA551 0.2 8 to 60 3 15 8.5 3 7 0.1 DIP-8, SO-8, DDPak-7 $1.75 OPA552 0.2 8 to 60 12 24 8.5 3 7 0.1 DIP-8, SO-8, DDPak-7 $1.75 OPA561 1.2 7 to 16 17 50 60 20 50 0.1 HTSSOP-20 $2.65
OPA564 2 7 to 26 4 20 35 20 10 0.1 HSOP-20 PowerPAD $2.75
OPA567 2.4 2.7 to 5.5 1.2 1.2 6 2 1.3 0.01 QFN-12 $1.85 OPA569 2.2 2.7 to 5.5 1.2 1.2 6 2 1.3 0.01 SO-20 PowerPAD $3.10
*
Suggested resale price in U.S. dollars in quantities of 1,000. Preview products are listed in bold blue.
Buffers Selection Guide (Sorted by Ascending BW at ACL)
A
CL
Settling THD VN at
VSVSVSVSStable BW Slew Time I
Q
(FC= Diff Diff Flatband V
OS
I
B
±15 ±5 3.3 5 Gain at ACLRate 0.01% (mA) 1MHz) Gain Phase (nV/ Hz) (mV) (µA)
Device (V) (V) (V) (V) (V/V) (min) (MHz) (V/µs) (ns) (typ) (typ) (dB) (typ) (%) (°) (typ) (max) (max) Package(s) Price
*
OPA633 Yes Yes 1 260 2500 50 21 0.1 15 35 DIP-8 $5.45 OPA692 Yes Yes 1 280 2000 12 (0.02%) 5.8 –78 0.07 0.02 1.7 2.5 35 SOT23-6, SOIC-8 $1.45 OPA693 Yes Yes 1 1400 2500 12 (0.1%) 13 –84 0.03 0.01 1.8 2 35 SOT23-6, SOIC-8 $1.30 OPA832 Yes Yes Yes 1 92 350 45 (0.1%) 4.25 –84 0.1 0.16 9.2 7 10 SOT23-5, SOIC-8 $0.70
BUF602 Yes Yes Yes 1 1000 8000 6 (0.05%) 5.8 0.15 0.04 4.8 30 7 SOT23-5, SOIC-8 $0.85
BUF634 Yes Yes Yes Yes 1
30 to 180
2000 200 (0.1%) 15 0.4 0.1 4 100 20 DIP-8, SOIC-8, $3.05
TO220-5, DDPak-5
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
44
Amplifiers
Pulse Width Modulation Power Drivers
from a DAC, while the DRV592 accepts a PWM input signal.
Output filter—in some applications, a low-
pass filter is placed between each output of the PWM driver and the load to remove the switching frequency components. A second­order filter consisting of an inductor and capacitor is commonly used, with the cut-off frequency of the filter typically chosen to be at least an order of magnitude lower than the switching frequency. For example, a DRV593 switching at 500kHz can have a 15.9kHz cut-off frequency. The component values are calculated using the following formula:
FC = 1 / [ 2 •π• ((L • C) ) ]
The inductor value is typically chosen to be as large as possible, and is then used to calculate the required capacitor value for the desired cut-off frequency.
TI’s pulse width modulation (PWM) power drivers are specifically designed for applica­tions requiring high current at low to moder­ately high voltages, ranging from 5V to 60V. Loads include electromechanical loads, such as solenoids, coils, actuators, and relays, as well as heaters, lamps, thermoelectric coolers and laser diode pumps.
These products feature integrated power transistors, which save considerable circuit board area compared to discrete implementations. Unlike the operation of linear drivers, PWM operation offers efficiencies as great as 90%, resulting in less power wasted as heat and reduced demand on the power supply. The DRV10x operates from +8V to +60V and has a single low-side or high-side power switch. The devices in the DRV59x family may be analog or digitally controlled and operate from 0% to 100% duty cycles. The DRV59x operates on +2.8V to +5.5V and has internal H-bridge output switches in series with the load, allowing for bi-directional current flow from a single power supply.
Design Considerations
Supply voltage—selection begins with the
power supply voltages available in the system. TI’s families of PWM power drivers operate from 2.8V to 5.5V for the DRV59x family and from 2.8V to 60V for the DRV10x family.
Output current and output voltage—the load
to be connected to the power driver will also
help determine the proper PWM power driver solution. The maximum output current required by the load should be known. The maximum output voltage capability of the driver may be calculated as follows:
VO(max) = VS– [ IO(max) • 2 • R
DS(ON)
]
Efficiency—a lower on-resistance (RON) of
the output power transistors will yield greater efficiency. Typically, R
DS(ON)
is specified per transistor. In an H-bridge output configuration, two output transistors are in series with the load. To quickly estimate the efficiency, use the following equation:
Efficiency = RL/ [ RL+ ( 2 • R
DS(ON)
) ]
Analog or digital control—TI offers both
H-bridge and single-sided drivers. The DRV590, DRV591, DRV593 and DRV594 each accept a DC voltage input signal, either from an analog control loop (i.e., PID controller) or
DRV103 low-side PWM driver block diagram.
PWM Power Drivers Selection Guide
Supply Voltage Output Current Saturation Voltage R
ON
Frequency
Device Description (V) (A) (typ) (V) () (kHz) Package(s) Price
*
Single Switch
DRV101 Low-Side with Internal Monitoring 9 to 60 2.3 1 0.8 24 TO-220, DDPAK $3.85 DRV102 High-Side with Internal Monitoring 8 to 60 2.7 2.2 0.95 24 TO-220, DDPAK $3.85 DRV103 Low-Side with Internal Monitoring 8 to 32 1.5/3 0.6 0.9 0.5 to 100 SOIC-8, SOIC-8 PowerPAD™ $1.60 DRV104 High-Side with Internal Monitoring 8 to 32 1.2 0.65 0.45 0.5 to 100 HTSSOP-14 PowerPAD $1.60
Bridge
DRV590 1.2A, High-Efficiency PWM Power Driver 2.7 to 5.5 1.2 0.48 0.4 250/500 SOIC-PowerPAD, 4x4mm $7.30
MicroStar Junior™ DRV591 ±3A, High-Efficiency PWM Power Driver 2.8 to 5.5 3 0.195 0.065 100/500 9x9 PowerPAD QFP $6.30 DRV592 ±3A, High-Efficiency H-Bridge 2.8 to 5.5 3 0.195 0.065 1000 9x9 PowerPAD QFP $12.50 DRV593 ±3A, High-Efficiency PWM Power Driver 2.8 to 5.5 3 0.195 0.065 100/500 9x9 PowerPAD QFP $5.90 DRV594 ±3A, High-Efficiency PWM Power Driver 2.8 to 5.5 3 0.195 0.065 100/500 9x9 PowerPAD QFP $5.90
Sensor Signal Conditioning
DRV401 Signal Cond. for Magnetic Current Sensor 4.5 to 5.5 0.2 0.4 2000 QFN-20, SOIC-20 $1.90
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
DRV103
Thermal Shutdown
Over Current
V
Oscillator
REF
Off
Input
On
Delay
Delay
Adj
C
D
Osc Freq
Adj
R
FREQ
PWM
Duty Cycle
R
Status OK
Flag
+V
S
Flyback
Diode
Coil Cooler Heater Lamp
Adj
PWM
DMOS
DMOS
ESD
OUT
GND
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Sensor Conditioners and 4-20mA Transmitters
45
The 4-20mA transmitter provides a versatile instrumentation amplifier (IA) input with a current-loop output, allowing analog signals to be sent over long distances without loss of accuracy. Many of these devices also include scaling, offsetting, sensor excitation and linearization circuitry. The XTR108 provides a digitally controlled analog signal path for RTD sig­nal conditioning. The XTR108 allows for digital calibration of sensor and transmitter errors via a standard digital serial interface, eliminating expensive potentiometers or
The PGA309 is a complete voltage output bridge sensor conditioner that eliminates potentiometers and sensor trims. Span and Offset are digitally calibrated with temperature coefficients stored in a low-cost, SOT23-5, external EEPROM. Excitation voltage linearization, internal/external temperature monitoring and selection of internal/external voltage references including supply are provided. Over/Under scale limits are set­table and fault detection circuitry is included.
circuit value changes. Calibration settings can be stored in an inexpensive external EEPROM for easy retrieval during routine operation.
4-20mA transmitter design solutions.
PGA309 Key Features
• Voltage output: ratiometric or absolute
• Digital calibration: no potentiometers, no sensor trim
• Sensor compensation: span and span drift, offset and offset drift
• <0.1% post-cal accuracy
• 2.7V to 5.5V operation
• Packaging: TSSOP-16
T
PGA309 functional block diagram.
4-20mA Transmitters and Receiver Selection Guide
Additional
Loop Output Power
Sensor Voltage Full-Scale Range Available
Device Description Excitation (V) Input Range (mA) (V at mA) Package(s) Price
*
2-Wire, 4-20mA Transmitters
XTR105 100RTD Conditioner with Linearization Two 800µA 7.5 to 36 5mV to 1V 4-20 5.1 at 0.5 DIP-14, SOIC-14 $4.00 XTR106 Bridge Conditioner with Linearization 5V and 2.5V 7.5 to 36 5mV to 1V 4-20 5.1 at 1 DIP-14, SOIC-14 $4.00 XTR108 10to 10kRTD Conditioner, 6-Channel Input Mux, Extra Op Amp Can Two 500µA 7.5 to 24 5mV to 320mV 4-20 5.1 at 2.1 SSOP-24 $3.35
Convert to Voltage Sensor Excitation, Calibration Stored in External EEPROM
XTR112 1kRTD Conditioner with Linearization Two 250µA 7.5 to 36 5mV to 1V 4-20 5.05 at 1 SOIC-14 $4.00 XTR114 10kRTD Conditioner with Linearization Two 100µA 7.5 to 36 5mV to 1V 4-20 5.05 at 1 SOIC-14 $4.00 XTR115 IINto I
OUT
Converter, External Resistor Scales VINto I
IN
V
REF
= 2.5V 7.5 to 36 40µA to 250µA 4-20 4.9 at 1 SOIC-8 $1.05
XTR116 IINto I
OUT
Converter, External Resistor Scales VINto I
IN
V
REF
= 4.096V 7.5 to 36 40µA to 250µA 4-20 4.9 at 1 SOIC-8 $1.05
XTR117 Current Loop, 7.5 to 40V, 5V Voltage Regulator V
REG
= 5V 7.5 to 40 40µA to 250µA 4-20 4.9 at 1 MSOP-8, DFN-8 $0.90
Bridge Conditioner with Digital Calibration for Linearization, Span and Offset Over Temperature
PGA309 Complete Digitally Calibrated Bridge Sensor Conditioner, Voltage Output, VEXC = VS, 2.7 to 5.5 1mV/V to 0.05V-4.9V TSSOP-16 $3.40
Calibration Stored in External EEPROM, One-Wire/Two-Wire Interface 2.5V 4.096V 245mV/V at VS= +5V
Industrial Current/Voltage Drivers
XTR110 Precision V-to-I Converter/Transmitter, Selectable I/O Ranges V
REF
= 10V 13.5 to 40 0V to 5V, 0-20, 4-20 DIP-16, SOL-16 $7.10
0V to 10V 5-25
XTR111 Precision V-to-I Converter/Transmitter, Adjustable V
REG
3V to 15V V
REG
= 3 to 15V 8 to 40 0V to 12V 0-20, 4-20,
5-25 3V to 15V DFN/MSOP-10 $1.45
XTR300 Industrial Analog Current/Voltage Output Driver <34 V(–)+3 to V(+)–3 ±17V 5x5 $2.45
Dig. selected VO≤
±24mA QFN/TSSOP-20
4-20mA Current Loop Receiver
RCV420 4-20mA Input, 0V to 5V Output, 1.5V Loop Drop V
REF
= 10V +11.5/–5 to ±18 4-20mA 0V to 5V DIP-16 $3.55
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
V
EXC
Analog Sensor Linearization
Fault
Monitor
Digital Temperature
Compensation
Ext Temp
T
V
S
V
S
Linearization
DAC
Control Register
Interface Circuitry
Ref
Linear
V
DIGITAL CAL
EEPROM
(SOT23-5)
Auto-Zero
PGA
Int
Temp
Linearization
Circuit
Over/Under
Scale Limiter
Analog Signal Conditioning
Temp
ADC
OU
4-20mA
XTR
RTD
V
LOOP
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Amplifiers
Sensor Conditioners and 4-20mA Transmitters
46
Industrial Analog Voltage or Current Output Driver
XTR300
XTR300 functional block diagram.
Get samples and datasheets at: www.ti.com/sc/device/XTR300
The XTR300 is a complete output driver for industrial and process control applications.The output can be selected as current or voltage by the digital I/V select pin, error flags allow for convenient fault detection. Separate driver and receiver channels are provided for added flexibility. The integrated instrumentation amplifier (INA) can be used for remote voltage sensing or as a high-voltage, high-impedance measurement channel. For additional protection, maximum output current limit and thermal protection is provided.
Key Features
• Pin select I or V output or input
• Pin select for output enable/disable (OE)
• Gain or transconductance set by external resistors
Output voltage swing: ±17.5V at VS= ±20V
Output current: ±24mA (linear range)
• Packaging: QFN-20 5mm x 5mm
Applications
• Analog interface between industrial high-voltage and low-voltage signal processing: PLC – I/O, Field Bus I/O
XTR111 functional block diagram.
Precision Voltage-to-Current Converter/Transmitter
XTR111
Get samples, datasheets and evaluation modules at:
www.ti.com/sc/device/XTR108
The XTR111 is a precision voltage-to-current converter designed for standard 0-20mA or 4-20mA analog signals and can source up to 36mA. It is ideal for 3-wire sensors and for the analog outputs of control systems like Programmable Logic Controllers (PLCs). Sensor excitation and common voltage-to-current (source) applications will benefit from its high accuracy (0.015%).
The XTR111 requires only one precision resistor to set the ratio between input voltage and output current. The circuit can also be modified for voltage output. Other features include an output error flag and output disable capability. The adjustable 3.0V to 15V sub­regulator output provides the supply voltage for additional circuitry.
The XTR111 is specified for use with single supplies ranging from 7V to 44V and temperatures over the extended –40°C to +85°C.
Key Features
• Wide supply range: 7V to 44V
• Current or voltage output
• Accuracy: 0.015%
• Output error detection and disable
• Adjustable 3V to 15V sub-regulator
• Nonlinearity: 0.002%
• Offset drift: 1µV/°C
• Low supply current: 500 µA
• Packaging: DFN-10
Applications
• Universal voltage-controlled current source
• Current or voltage output for 3-wire sensor systems
• PLC output programmable driver
• Current-mode sensor excitation
XTR111
GND V
Vdd
I
MON
V
IN
R
REF
OS
Offset
R
2
Gain
IA
OUT
XTR300
Error Recog.
Temp, Overld.
V
ss
Current Copy
OPA
INA
Configuration
V, I, OD
DRV
V
G
1
G
V
SENSE+
2
SENSE–
C
C
V
/ I
OUT
R
1
OUT
REGF
5
Regulator
Out
REGS
4
24V
1
I- Mirror
VSP
9
OD
EF
IS
VG
8
2
3GS
Output Disable
Output Failure
D
I
Load
(± Load Ground)
OUT
0mA to 20mA 4mA to 20mA
Signal
Input
3V
6
VIN
I
SET
GND
SET
710
R
SET
I
OUT
I
= 10
OUT = 10
V
VIN
( )
R
SET
• I
SET
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Logarithmic Amplifiers
47
LOG112 functional block diagram.
TI has achieved significant advancement in log amp technology. The logarithmic amplifier is a versatile integrated circuit that computes the logarithm of an input current relative to a reference current or the log of the ratio of two input currents. Logarithmic amplifiers can compress an extremely wide input dynamic range (up to 8 decades) into an easily measured output voltage. Accurate matched bipolar transistors provide excellent logarithmic conformity over a wide input current range. On-chip compensation achieves accurate scaling over a wide operating temperature range.
TI log amplifiers are designed for optical networking, photodiode signal compression, analog signal compression and logarithmic
computation for instrumentation. Some log amps, such as the LOG102, feature additional uncommitted op amps for use in a variety of functions including gain scaling, inverting, filtering, offsetting and level comparison to detect loss of signal. The LOG2112 is a dual version of the LOG112 and includes two log amps, two uncommitted output amps and a single shared internal voltage reference.
Design Considerations
Output scaling—amplifier output is
0.32V, 0.5V or 1.0V per decade and is the equivalent of the gain setting in a voltage input amp.
Quiescent current—lowest in LOG101 and
LOG104.
Conformity error—measured with 1nA to
1mA input current converted to 5V output. More than 16-bits of dynamic range are achievable.
Auxiliary op amps—some log amps have
additional uncommitted op amps that can be used to offset and scale the output signal to suit application requirements.
Technical Information
Log amplifiers provide a very wide dynamic range (up to 160dB), extremely good DC accuracy and excellent performance over the full temperature range.
LOG112 Key Features
• Easy-to-use complete function
• Output scaling amplifier
• On-chip 2.5V voltage reference
• High accuracy: 0.2% FSO over 5 decades
• Wide input dynamic range:
7.5 decades, 100pA to 3.5mA
• Low quiescent current: 1.75mA
• Wide supply range: ±4.5V to ±18V
• Packaging: SO-14 (narrow) and SO-16
Logarithmic Amplifiers Selection Guide
Conformity Conformity
Input Input Error Error I
Q
Current Current (Initial 5 (Initial 5 Per
Scale Range Range Decades) Decades) V
S
V
S
Ch.
Factor (nA) (mA) (%) (%/°C) Bandwidth (V) (V) (mA) Reference Auxiliary
Device (V/Decade) (min) (max) (max) (typ/temp) (kHz) (min) (max) (max) Type Op Amps Package Price
*
LOG101 1 0.1 3.5 0.2 0.0001 38 9 36 1.5 External SO-8 $6.95 LOG102 1 1 1 0.3 0.0002 38 9 36 2 External 2 SO-14 $7.25 LOG104 0.5 0.1 3.5 0.2 0.0001 38 9 36 1.5 External SO-8 $6.95 LOG112 0.5 0.1 3.5 0.2 0.00001 38 9 36 1.75 2.5V Internal 1 SO-14 $7.90 LOG2112 0.5 0.1 3.5 0.2 0.00001 38 9 36 1.75 2.5V Internal 1/Ch SO-16 $11.35
LOG114 .375 0.1 10 0.2 0.001 5000 5 10 10 2.5V Internal 1 QFN $7.90
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
V
= (0.5V)LOG (I1/I2)
LOGOUT
= K (0.5V)LOG (I1/I2), K = 1 + R2/R
V
O3
I
1
I
2
R
REF
A
1
C
C
1
V+
Q
1
+IN3
–IN3
A
R
2
3
R
1
V
Q
2
A
LOGOUT
2
V
O3
V
V
REF
REF
V
V
REF – GND
NOTE: Internal resistors are used to compensate gain change over temperature. The V
CM
CM
pin is internally connected to GND in the LOG2112.
GND
V–
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
48
Amplifiers
Integrating Amplifiers
Integrating amplifiers provide a precision, lower noise alternative to conventional transimpedance op amp circuits which require a very high value feedback resistor. Designed to measure input currents over an extremely wide dynamic range, integrating amplifiers incorporate a FET op amp, integrating capacitors, and low-leakage FET switches. Integrating low-level input current for a user­defined period, the resulting voltage is stored on the integrating capacitor, held for accurate measurement and then reset. Input leakage of the IVC102 is only 750fA. It can also measure bipolar input currents.
The ACF2101 two-channel integrator offers extremely low bias current, low noise, an extremely wide dynamic range and excellent channel isolation. Included on each of the two integrators are precision 100pF integration capacitors, hold and reset switches and output multiplexers. As a complete circuit on a chip, leakage current and noise pickup errors are eliminated. An output capacitor can be used in addition to (or instead of) the internal capacitor depending on design requirements.
Design Considerations
Supply voltage—while single-supply
operation is feasible, bipolar-supply operation is most common and will offer the best performance in terms of precision and dynamic range.
Number of channels—IVC102 offers a single
integrator, while the ACF2101 is a dual.
Integration direction—either into or out of
the device. IVC102 is a bipolar input current integrator and will integrate both positive and negative signals. ACF2101 is a unipolar current integrator, with the output voltage integrating negatively.
Input bias (leakage) current—often sets a
lower limit to the minimum detectable signal input current. Leakage can be subtracted from measurements to achieve extremely low-level current detection (<10fA). Circuit board leakage currents can also degrade the minimum detectable signal.
Sampling rate and dynamic range—the
switched integrator is a sampled system controlled by the sampling frequency (fs),
which is usually dominated by the integration time. Input signals above the Nyquist frequency (fs/2) create errors by being aliased into the sampling frequency bandwidth.
Technical Information
Although these devices use relatively slow op amps, they may be used to measure very fast current pulses. Photodiode or sensor capacitance can store a pulse charge temporarily, the charge is then slowly integrated during the next cycle.
See the OPT101 data sheet for monolithic photodiode and transimpedance amplifier. The OPT101 converts light directly into a voltage output, with low leakage current errors, minimal noise pick-up and low gain peaking due to stray capacitance.
IVC102 functional block diagram.
Integrating Amplifiers Selection Guide
Input Noise at Switching Useful Input Power I
Q
Bias Current 1kHz (nV/ Hz Time Sampling Rate Current Range Supply (mA)
Device Description (fA) (max) (typ) (µs) (typ) (kHz) (µA) (V) (max) Package(s) Price
*
IVC102 Precision, Low Noise, Bipolar Input Current ±750 10 100 10 0.01 to 100 +4.75 to +18 5.5 SO-14 $4.55
–10 to –18 –2.2
ACF2101 Dual, Unipolar 1000 200 10 0.01 to 100 +4.75 to +18 15 SO-24 $15.55
–10 to –18 5.2
Monolithic Photodiode and Transimpedance Amplifier
OPT101 Monolithic Photodiode with Built-In 165 14 +2.7 to +36 0.24 PDIP-8, SOP-8 $2.75
Transimpedance Amplifier
*
Suggested resale price in U.S. dollars in quantities of 1,000.
V
B
Ionization
Chamber
Photodiode
I
IN
Analog Ground
C
1
S
Logic Low closes switches
60pF
C
3
C
30pF
2
10pF
S
2
S
1
V–
1
S
2
Digital
Ground
V
O
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Isolation Amplifiers
49
3.3V, High-Speed Digital Isolators
ISO721, ISO722
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/ISO721 and www.ti.com/sc/device/ISO722
ISO721 functional block diagram.
Key Features
• 4000V isolation
• Fail-safe output
• Signaling rate up to 100Mbps
• UL 1577, IEC 60747-5-2 (VDE 0884, Rev. 2), IEC 61010-1 and CSA Approved
• 25kV/µs transient immunity
Applications
• Industrial fieldbus
• Servo monitoring and control
The ISO721 digital isolator is a logic input and output buffer separated by a silicon oxide (SiO
2
) insulation barrier that provides galvanic isolation of up to 4000V. Used in conjunction with isolated power supplies, the device prevents noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.
A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation barrier. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure the proper dc level of the output. If this dc-refresh pulse is not received for more than 4µs, the input is assumed to be unpowered or not functional and the fail-safe circuit drives the output to a logic high state.
There are many applications where it is desirable, even essential, that a sensor not have a direct (galvanic) electrical connection with the system to which it is supplying data in order to avoid either dangerous voltages or currents from one half of the system from damaging the other half. Such a system is said to be "isolated", and the area which passes a signal without galvanic connections is known as an "isolation barrier".
Isolation barrier protection works in both directions, and may be needed in either half of the system, sometimes both. Common applications requiring isolation protection are
those where sensors may accidentally encounter high voltages and the system it is driving must be protected. Or a sensor may need to be isolated from accidental high voltages arising downstream in order to protect its environment: examples include prevention of explosive gas ignition caused by sparks at sensor locations or protecting patients from electric shock by ECG, EEG and EMG test and monitoring equipment. The ECG application may require isolation barriers in both directions: the patient must be protected from the very high voltages (>7.5kV) applied by the defibrillator, and the
technician handling the device must be protected from unexpected feedback.
Applications for Isolation Amplifiers
• Sensor is at a high potential relative to other circuitry (or may become so under fault conditions)
• Sensor may not carry dangerous voltages, irrespective of faults in other circuitry (e.g. patient monitoring and intrinsically safe equipment for use with explosive gases)
• To break ground loops
Isolation Amplifiers Selection Guide
Isolation Isolation Isolation Input Small-
Voltage Cont Voltage Pulse/ Mode Gain Offset Voltage Signal
Peak (DC) Test Peak Rejection DC Nonlinearity Drift (±µV/°C) Bandwidth
Device Description (V) (V) (dB) (typ) (%) (max) (max) (kHz) (typ) Package(s) Price
*
ISO122 1500V
RMS
Isolation, Buffer 1500 2400 140 0.05 200 50 DIP-16, SOIC-28 $9.40
ISO124 1500V
RMS
Isolation, Buffer 1500 2400 140 0.01 200 50 DIP-16, SOIC-28 $7.20
Digital Couplers
Isolation Isolation Peak Working Data Transient Propagation
Voltage Cont Voltage Pulse/ Transient Voltage Rate Immunity Delay PWD I
CCQ
Peak (DC) Test Peak Overvoltage V
IORM
(max) (min) at 5V (max)
at 5V (max)
at 5V (max)
Supply
Device Description (V) (V) VIOTM (V) (V) (Mbps) (KV/µs) (ns) (ns) (mA) Voltage Package(s) Price
*
ISO150 Dual Channel Bi-Directional 1500 2400 80 1.6 40 6 10 3V to 5.5V SO-28 $8.10
Digital Isolator
ISO721 Single Channel, 3.3V/5V 4000 560 100 25 24 2 13 3.3V, 5V SO-8 $1.65
Digital Isolators
ISO721M Single Channel, 3.3V/5V 4000 560 150 25 16 1 13 3.3V, 5V SO-8 $1.65
Digital Isolators
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
DC Channel
OSC
+
PWM
Input
IN
+
Filter
AC Channel
Isolation
Barrier
V
REF
POR
BIAS POR
V
REF
Filter
PWD
Carrier
Data MUX
AC Detect
3-State Output
Buffer
Detect
(722 Only)
EN
OUT
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
50
Amplifiers
Amplifiers for Driving Analog-to-Digital Converters
Data acquisition systems generally require an amplifier preceding the ADC to buffer the input signal. Most modern ADCs possess complex input characteristics due to the capacitive charging and switching that occurs during sampling and conversion. This behavior causes transient currents on the ADC’s input that can disturb or distort a precision analog input signal. The input amplifier serves to provide a stable, accurate signal in the presence of these current transients. It can also provide gain (or attenuation), level shifting, filtering and other signal conditioning functions.
Selecting the input op amp requires attention to many considerations. DC accuracy may narrow the possible choices of an amplifier. The amplifier must have sufficiently low offset voltage, offset voltage drift, input bias current, noise, and so forth, to meet the required accuracy performance. It is often the dynamic performance characteristics, however, that prove most troublesome in the selection process. The amplifier must preserve the required dynamic signal characteristics.
Design Considerations
Time domain issues—some applications
demand that the amplifier respond accurately to full-scale changes in input voltage. For example, a multiplexed-input system may have input voltages equal to full-scale extremes on two adjacent inputs. The amplifier and ADC must respond to this sudden full-scale change in one sampling period.
Settling time—an all-encompassing
specification used to describe the ability of an amplifier to respond to a large change in
input voltage. The settling time includes the large-signal period determined by slew rate and the small-signal settling period determined primarily by the bandwidth of the amplifier. Slewing time varies with the step size. Though generally specified for a specific step size, the settling time for other step sizes can be inferred from the slewing portion of the step.
The small-signal portion of the settling wave­form is affected by the gain of the input amplifier. If the amplifier is placed in a higher gain, system bandwidth is reduced, propor­tionally increasing the small-signal portion of the settling waveform.
Frequency domain performance—many ADCs
are used to digitize dynamic waveforms such as audio. Rapid full-scale signal steps are rarely, if ever, encountered in these systems. For this reason, such systems generally specify spectral purity of the digitized signal. The amplifier must support this application with the required distortion performance. Many amplifiers specify THD+N (total harmonic distortion + noise). Other measures are also used. All these measures are made by applying a pure sine wave (or combination of sine waves) and measuring the spectral content in the amplifier's output that are not present in its input signal.
Technical Information
The input amplifier is generally connected to the ADC through an R-C network. Though often called a filter, this network actually serves as a "flywheel" in the presence of the current pulses created by the ADC's input circuitry. The circuit values of this circuit depend on both the amplifier and the ADC characteristics and often must be optimized for a particular application. The optimum capacitor value is generally in the range of 10 to 50 times the input capacitance of the ADC. The resistor is chosen to meet the speed or bandwidth requirement of the application.
The op amps shown in the following table are among the most likely choices for the indicated conversion speeds and ADC architectures. Depending on specific application requirements, other amplifiers may provide improved performance.
For a complete list of op amps, visit: amplifier.ti.com
Multiplexed data acquisition systems require excellent dynamic behavior from op amps.
“Flywheel” conditioning network.
High-Scale
Input
ADC
Data
Tim e
Error Band (% of Step)
Step Size (V)
Output Voltage
Settling
Tim e
V
Slewing portion
of settling time
µs
Small-signal
portion of
settling time
0.01
0.001
0.0001
0.00001
Amplitude (% of Fundamentals)
0.000001
Total Harmonic Distortion + Noise
Representative
Amplifier Behavior
20
100 1k
Frequency
R
= 1k
L
R
L
= 10k
10k 20k
ADC
Signal
Conditioning
Low-Scale
Input
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Amplifiers
Amplifiers for Driving Analog-to-Digital Converters
51
Amplifiers for ADCs Selection Guide
IQPer Slew V
OS
Offset VNat
VSVSCh. GBW Rate (25°C) Drift I
B
1kHz Rail-
(V) (V) (mA) (MHz) (V/µs) (mV) (µV/°C) (pA) (nV/ Hz) Single to-
Device Description Ch. (min) (max) (max) (typ) (typ) (max) (typ) (max) (typ) Supply Rail Package(s) Price
*
For Use with Medium-Speed SAR ADCs (<250kSPS)
INA155 Medium Speed, Precision INA 1 2.7 5.5 2.1 0.55 6.5 1 5 10 40 Y Out MSOP $1.10 INA128 High Precision, 120dB CMRR 1 4.5 36 0.75 1.3 4 0.5 0.2 5000 8 N N PDIP, SOIC $3.05 INA331 High Bandwidth, Single Supply 1, 2 2.7 5.5 0.5 5 5 0.5 5 10 46 Y Out MSOP $1.10 OPA340 CMOS, 0.0007% THD+N 1, 2, 4 2.7 5.5 0.95 5.5 6 0.5 2.5 10 25 Y I/O SOT-23, MSOP $0.80 OPA363 1.8V, High CMRR, SHDN 1, 2 1.8 5.5 0.75 7 5 0.5 2 10 17 Y I/O SOT-23, MSOP $0.60 OPA2613 Dual VFB, Low Noise 2 5 12.6 6 12.5 70 1 3.3 12µA 1.8 Y N SOIC, SOIC PowerPAD™ $1.55
OPA211 36V, Bipolar Precision 1,2 5 36 3.6 80 27 0.1 0.2 15000 1.1 Y Out DFN, MSOP, SO8 $3.45
OPA627 Ultra-Low THD+N, Wide BW 1 9 36 7.5 16 55 0.1 0.4 5 5.2 N N PDIP, SOIC $12.25 OPA381 Precision High-Speed Amp 1, 2 2.7 5.5 1 18 12 0.025 0.03 50 10 Y Out DFN, MSOP $1.45 OPA228 Precision, Low Noise, G 5 1, 2, 4 5 36 3.8 33 10 0.075 0.1 10000 3 N N PDIP, SOIC $1.10 OPA350 Precision ADC Driver 1, 2, 4 2.7 5.5 7.5 38 22 0.5 4 10 5 Y I/O PDIP, MSOP $1.30 THS4281 Very Low Power RRIO 1 2.7 15 1 80 35 3.5 4 10 12.5 Y I/O SOT-23, MSOP, SOIC $0.95 OPA2830 Dual, Low Power 1, 2 3 11 3.9 100 500 5.5 10,000 9.2 N Out MSOP $0.80 THS4032 100MHz, Low Noise 2 5 30 8.5 230 100 2 10 6 1.6 N N MSOP PowerPAD, SOIC $3.35
THS4520 Rail-to-Rail Output, FDA
1
1 3 5 13 1200 520 2.5 8 11 2 Y Out QFN $2.45
For Use with High-Resolution, Delta-Sigma (∆Σ) ADCs
OPA333 1.8V, RRIO, Zero Drift 1,2 1.8 5.5 0.025 0.5 0.16 0.01 0.05 100 Y I/O SC70, SOT23, SO8 $0.95
OPA735 12V, Precision, Auto-Zero Amp 1 2.7 13.2 0.75 1.6 1.5 0.005 0.05 200 Y Out SOT-23, MSOP $1.25 OPA277 Low Offset and Drift 1, 2, 4 4 36 0.825 1 0.8 0.02 0.1 1000 8 N N QFN, SOIC, PDIP $0.85 OPA227 Ultra-Low Noise, Bipolar Input 1, 2, 4 5 36 3.8 8 2.3 0.075 0.1 10000 3 N N QFN, PDIP, SOIC $1.10 INA326 Auto-Zero INA, 110dB CMRR 1 2.5 5.5 3.4 1kHz 0.1 0.4 2000 33 Y I/O MSOP $1.80 OPA627 Ultra-Low THD+N, Difet™ 1 9 36 7.5 16 55 0.1 0.4 5 5.2 N N PDIP, SOIC $12.25 OPA336 High Precision, µPower Amp 1, 2, 4 2.3 5.5 0.032 0.1 0.03 0.125 1.5 10 40 Y Out MSOP, PDIP $0.40
INA159 Level Translation Amp 1 1.8 5.5 1.4 1.5 15 0.5 2 30 Y I/O MSOP $1.50
INA152 Single-Supply Difference Amp 1 2.7 20 0.65 0.8 0.4 1.5 3 87 Y Out MSOP $1.20
For Use with High-Speed SAR (>250kSPS) ADCs
OPA2613 Dual VFB, Low Noise 2 5 12.6 6 12.5 70 1 3.3 12µA 1.8 Y N SOIC, SOIC PowerPAD $1.55 OPA727 CMOS, e-trim™, Low Noise 1, 2, 4 4 12 6.5 20 30 0.15 1.5 100 11 Y N MSOP, DFN, TSSOP $1.45
OPAy365 High-Speed, Zero-Crossover, CMOS 1, 2 2.2 5.5 5 50 25 0.5 1 10 100 5 IN SOT23, SO-8 $0.95
OPA358 CMOS, 3V Operation, SC70 1 2.7 3.3 7.5 80 55 6 5 50 6.4 Y Y SC70 $0.45 OPA2830 Dual, Low Power, Wideband, SS 2 3 11 3.9 100 500 1.5 27 10 9.5 Y Out MSOP, SOIC $1.20 THS4130/31 Differential In/Out, SHDN 1 5 30 15 135 52 2 4.5 6µA 1.3 Y N SOIC, MSOP $2.75
OPA211 36V, Bipolar Precision 1,2 5 36 3.6 80 27 0.1 0.2 15000 1.1 Y Out DFN, MSOP, SO8 $3.45
OPA355 CMOS, 2.7V Operation, SOT23 1, 2, 3 2.7 5.5 11 200 300 9 7 50 5.8 Y Out SOT-23, SOIC $0.90 OPA842 Low Distortion, VFB 1 8 12.6 20.2 200 400 1.2 4 35 2.6 N N SOT-23, SOIC $1.55 THS4032 100MHz, Low Noise 2 5 30 8.5 230 100 2 10 6 1.6 N N MSOP PowerPAD, SOIC $3.35 OPA2822 Dual Wideband, Low Noise, VFB 2 4 12.6 4.8 240 170 1.2 5 12µA 2 Y N SOIC, MSOP $1.45
THS4520 Rail-to-Rail Output, FDA
1
1 3 5 13 1200 520 2.5 8 11 2 Y Out QFN $2.45
OPA2889 Dual, Low Power, VFB 2 2.6 12 .46 75 250 5 ±20 0.75 8.4 Y N MSOP, SOIC $1.20
For Use with High-Speed Data Converters (Pipeline and Flash ADCs)
OPA2613 Dual VFB, Low Noise 2 5 12.6 6 12.5 70 1 3.3 12µA 1.8 Y N SOIC $1.55 OPA842 Low Distortion, VFB 1 7 12.6 20.2 200 400 1.2 4 35µA 2.6 Y N SOT-23, SOIC $1.55 OPA847 Low Noise, VFB with SHDN 1 7 12.6 18.1 3900 950 0.5 0.25 39µA 0.85 Y N SOT-23, SOIC $2.00 OPA843 Low Distortion, G +3, VFB 1 7 12.6 20.2 800 1000 1.2 4 35µA 2 Y N SOT-23, SOIC $1.60 OPA698 Wideband, VFB w/Limiting 1 5 12.6 15.5 250 1100 5 15 10µA 5.6 Y N SOIC $1.90 OPA2690 Dual VFB w/Disable Limiting 2 5 12.6 5.5 300 1800 4.5 12 10µA 5.5 Y N SOIC $2.15 THS4502/03 Differential In/Out, SHDN 1 4.5 15 28 370 2800 –4/+2 10 4.6µA 6.8 Y N MSOP $4.00 OPA695 Ultra-Wideband CFB 1 5 12.6 12.3 4300 3 10 37µA 1.8 Y N SOT-23, SOIC $1.35 THS4511 Wideband, Low Noise, FDA11 3 5 39.2 2000 4900 5.2 2.6 15.5µA 2 Y N QFN $3.45 THS4513 Wideband, Low Noise, FDA11 3 5 37.7 2000 5100 5.2 2.6 13µA 2.2 Y N QFN $3.25 THS4508 Wideband, FDA
1
1 3 5 39.2 3000 6400 5 2.6 15.5µA 2.3 Y N QFN $3.95
THS4509 Low Distortion, FDA
1
1 3 5 37.7 3000 6600 0.8 2.6 13µA 1.9 Y N QFN $3.75
THS4520 Rail-to-Rail Output, FDA
1
1 3 5 13 1200 520 2.5 8 11 2 Y Out QFN $2.45
1
Fully differential amplifier * Suggested resale price in U.S. dollars in quantities of 1,000.
New products are listed in bold red. Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
52
ADCs by Architecture
Delta-Sigma (∆Σ) ADCs
Delta-sigma converters are capable of very high resolution, and are ideal for converting signals over a very wide range of frequencies from DC to several megahertz. In a delta­sigma ADC, the input signal is oversampled by a modulator, then filtered and decimated by a digital filter producing a high-resolution data stream at a lower sampling rate.
The delta-sigma architecture approach allows resolution to be traded for speed and both to be traded for power. This nearly continuous relationship between data rate, resolution and power consumption makes delta-sigma converters extraordinarily flexible. In many delta-sigma converters, this relationship is programmable, allowing a single device to handle multiple measurement requirements.
Because delta-sigma converters oversample their inputs, they can perform most anti-aliasing filtering in the digital domain. Modern VLSI design techniques have brought the cost of complex digital filters far below the cost of their analog equivalents. Formerly unusual functions, such as simultaneous 50Hz and 60Hz notch filtering, are now built into many delta-sigma ADCs.
Typical high-resolution applications for delta-sigma ADCs include audio, industrial process control, analytical and test instrumentation and medical instrumentation.
Recent innovations in ADC architectures have led to a new class of ADC architecture which uses both the pipeline and the oversampling principle.These, very high-speed converters push the data rates into the MSPS range, while maintaining resolutions of 16-bits and higher.These speeds enable a host of new wide bandwidth signal processing applications such as communications and medical imaging.
Most delta-sigma ADCs have inherently differential inputs. They measure the actual difference between two voltages, instead of the difference between one voltage and ground. The differential input structure of a delta-sigma makes it ideal for measuring
differential sources such as bridge sensors and thermocouples. Frequently, no input amplifiers are required for these applications.
Delta-sigma converters work differently than SAR converters. A SAR takes a "snapshot" of an input voltage and analyzes it to determine the corresponding digital code. A delta-sigma measures the input signal for a certain period of time and outputs a digital code corresponding to the signal's average over that time. It is important to remember the way delta-sigma converters operate, particularly for designs incorporating multiplexing and synchronization.
It is very easy to synchronize delta-sigma converters together, so that they sample at the same time but it's more difficult to synchronize a delta-sigma converter to an external event. Delta-sigma converters are highly resistant to system clock jitter. The action of oversampling effectively averages the jitter, reducing its impact on noise.
Many delta-sigma converters include input buffers and programmable gain amplifiers (PGA). An input buffer increases the input impedance to allow direct connection to high source impedance signals. A PGA increases the converter’s resolution when measuring small signals. Bridge sensors are an example of a signal source that can take advantage of the PGA within the converter.
Every ADC requires a reference, and for high-resolution converters, low-noise, low-drift references are critical. Most delta-sigma converters have differential reference inputs.
The following pages provide a broad range of delta-sigma ADCs available from TI for a wide range of applications.
To help facilitate the selection process, an interactive online data converter parametric search engine is available at
dataconverter.ti.com with links to all
data converter specifications.
Delta-sigma ADCs consist of a delta-sigma modulator followed by a digital decimation filter. The modulator incorporates a comparator and integrator in a feedback loop with a DAC. The loop is synchronized by a clock.
DAC
Modulator
Analog
Input
Differential
Amplifier
Integrator
Comparator
Digital
Filter
Digital
Output
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
ADCs by Architecture
Delta-Sigma (∆Σ) ADCs
53
A1/TEMP
[1]
A0 AGND
AVDD
GAIN[1:0]
PDWN
DRDY/DOUT
Internal Oscillator
External Oscillator
SCLK
SPEED
CAP
CAP CLKIN/XTAL1 XTAL2 DGND
Gain = 1, 2, 64, 128
REFP REFN DVDD
ADS1234
Only
Input MUX
24-Bit
∆Σ ADC
NOTE: (1) A1 for ADS1234, TEMP for ADS1232.
PGA
AINP4
AINN4
AINP1
AINN1
AINP2
AINN2
AINP3
AINN3
Complete Analog Front End for Bridge Sensors
ADS1230, ADS1232, ADS1234
Get samples, datasheets and evaluation modules at: www.ti.com/sc/device/PARTnumber (Replace PARTnumber with ADS1230, ADS1232 or ADS1234)
ADS1232 functional block diagram. Reference design available, see page 114.
Key Features
• Very low noise:
17nV
RMS
at 10SPS (PGA = 128)
44nV
RMS
at 80SPS (PGA = 128)
• 19.2-bit noise-free resolution at Gain = 64
• Excellent 50 and 60Hz rejection (at 10SPS)
• 1-channel differential input: ADS1230
• 2-channel differential input: ADS1232
• 4-channel differential input: ADS1234
• Built-in temperature sensor
• Simple 2-wire serial digital interface
• Supply range: 2.7V to 5.25V
• Packaging:
TSSOP-16 (ADS1230)
TSSOP-24 (ADS1232)
TSSOP-28 (ADS1234)
Applications
• Weigh scales
• Strain gauges
• Pressure sensors
• Industrial process control
The ADS1230, ADS1232 and ADS1234 are precision 20-bit and 24-bit, respectively, delta-sigma ADCs with an onboard very low noise programmable gain amplifier and internal oscillator. The PGA supports user-selectable gains of 1, 2, 64 and 128. The ADC features 23.5-bits effective resolution, is comprised of a 3rd-order modulator and 4th-order digital filter and supports 10SPS or 80SPS data rates. All functions are controlled by dedicated I/O pins for easy operation.
∆Σ
Modulator
Digital
Filter
Internal
Monitoring
16:1
Analog
Input MUX
1
16
AINCOM
ADC
IN
EXTCLK IN/OUT
AVSS DGND
AVDD
DVDD
MUX
OUT
SPI
Interface
CS DRDY SCLK DIN
DOUT
ControlOscillator
GPIO
START RESET PWDN
GPIO[7:0]
VREF
ANALOG INPUTS
16-Channel, Fast Cycling, 24-Bit, Low-Noise ADC
ADS1258
Get samples, datasheets and evaluation modules at: www.ti.com/sc/device/ADS1258
Key Features
• 24-bits, no missing codes
• Fixed-channel or automatic-channel scan
• Data rate: 125kSPS fixed-channel;
23.7kSPS auto-scan of 16-channels
• Low noise: 2.8µV
RMS
at 1.8kSPS
• Integral nonlinearity: 0.0003%
• Offset drift: 0.02µV/°C
• Gain drift: 0.4ppm/°C
• Power dissipation: 42mW
• Standby, sleep and power-down modes
• Supply range: +5V (unipolar); ±2.5V (bipolar)
• Packaging: QFN-48
Applications
• Medical, avionics and process control
• Machine and system monitoring
• Fast scan multi-channel instrumentation
• Industrial systems
• Test and measurement systems
The ADS1258 is a 16-channel (multiplexed), delta-sigma ADC that provides single-cycle settled data at a channel scan rate from 1.8kSPS to 23.7kSPS. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V, or true bipolar range of ±2.5V, when operating with a 5V reference. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain and offset data.
ADS1258 functional block diagram.
ADS1232 ADS1234
ADS1258
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
ADCs by Architecture
Delta-Sigma (∆Σ) ADCs
54
24-Bit ADC with DC Accuracy and AC Performance
ADS1271, ADS1274*, ADS1278*
Get samples, datasheets and evaluation modules at: www.ti.com/sc/device/PARTnumber (Replace PARTnumber with ADS1271, ADS1274 or ADS1278)
Traditionally, industrial delta-sigma ADCs offering good drift performance used digital filters with large passband droop. As a result, they have limited signal bandwidth and are mostly suited for DC measure­ments. High-resolution ADCs in audio applications offer larger usable bandwidths, but the offset and drift specification are significantly weaker than their industrial counterparts. The ADS1271, ADS1274 and ADS1278 combine these converter types, allowing high-precision industrial measurement with excellent DC and AC specifications ensured over an extended industrial temperature range.
*ADS1274 and ADS1278 expected release date 4Q 07.
Key Features
• AC performance:
Bandwidth: 51kHz
THD: –105dB
• DC accuracy:
Offset drift: 1.8µV/°C
Gain drift: 2ppm/°C
• Selectable operating modes:
High speed: 105kSPS data rate
High resolution: 109dB SNR
Low power: 35mW dissipation
• Selectable SPI or frame sync serial interface
• Designed for multichannel systems
• Analog supply: 5V
• Digital supply: 1.8V to 3.3V
• Packaging: TSSOP-16
Applications
• Vibration/modal analysis
• Acoustics
• Dynamic strain gauges
• Pressure sensors
• Test and measurement
The ADS1271 is a single-channel, 24-bit, delta-sigma ADC with up to 105kSPS data rate. The ADS1274 (quad) and ADS1278 (octal) ADCs offer simultaneous sampling rates up to 125kSPS (max) and all offer a unique combination of excellent DC accuracy and outstanding AC performance. The high-order, chopper-stabilized modulator achieves very low drift with low in-band noise. The onboard decimation filter suppresses modulator and out-of-band noise.
ADS1271 functional block diagram.
ADS1271
24-Bit, One- and Two-Channel Differential Input ADCs with Internal Oscillator
ADS1225, ADS1226
Get samples, datasheets and evaluation modules at: www.ti.com/sc/device/ADS1225 and www.ti.com/sc/device/ADS1226
Key Features
• Data rate: 100SPS (high-speed mode)
• Easy control with dedicated start pin
• Single-cycle settling
• Low noise: 4µV
RMS
(high-resolution mode)
• Low power: 1mW operation; <1µA shutdown
• Self-calibrating
• Simple read-only, 2-wire serial interface
• Internal temperature sensor
• Internal oscillator
• Analog and digital supplies: 2.7V to 5.5V
• Packaging: QFN-16
Applications
• Hand-held instruments
• Portable medical equipment
• Industrial process control
The ADS1225 (single channel) and ADS1226 (dual channel) are 24-bit delta-sigma ADCs that convert on command using a dedicated START pin. Simply pulse this pin to initiate a conversion. Data is read in a single cycle for retrieval over a 2-wire serial interface that easily connects to popular micro­controllers like TI’s MSP430. After conversion, the device shuts down. Features include a two­channel multiplexer (ADS1226), selectable input buffer, temp sensor, oscillator and two operating modes allow optimization for speed or resolution.
ADS1225 and ADS1226 functional block diagram.
ADS1225
AIN P1
AIN N1
AIN P2
AIN N2
TEMPEN
MUX
MUX
AIN P
AIN N
VREFP
VIN
Buffer
BUFEN
ADC
VREFN
VREF
Interface
Oscillator
Serial
START
SCLK
DRDY/DOUT
MODE
AINP
AINN
VREFP
∆Σ
Modulator
VREFN
AVD D
Digital
Filter
Control
Logic
DVDD
Serial
Interface
SYNC/PDWN MODE
CLK
DRDY/FSYNC SCLK DOUT DIN FORMAT
AGND
DGND
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
ADCs by Architecture
Delta-Sigma (∆Σ) ADCs
55
Delta-Sigma (∆Σ) ADCs Selection Guide
Sample Number of
Res. Rate Input Input Voltage Linearity Power
Device (Bits) (kSPS) Channels Interface (V) V
REF
(%) (mW) Package(s) Price
*
ADS1258 24 125 16 SE/8 Diff Serial, SPI 5, ±2.5 Ext 0.0015 40 QFN-48 $7.95
ADS1278 24 125 8 Diff Simultaneous Serial, SPI w/FSYNC 2.5 Ext 0.001 60-600 TQFP-64 $23.95 ADS1274 24 125 4 Diff Simultaneous Serial, SPI w/FSYNC 2.5 Ext 0.001 30-300 TQFP-64 $13.95
ADS1271 24 105 1 Diff Serial, SPI w/FSYNC 2.5 Ext 0.0015 35-100 TSSOP-16 $5.90
ADS1252 24 41 1 SE/1 Diff Serial 5 Ext 0.0015 40 SOIC-8 $6.45 ADS1256 24 30 8 SE/4 Diff Serial, SPI PGA (1-64), 5V Ext 0.001 35 SSOP-28 $6.95 ADS1255 24 30 2 SE/1 Diff Serial, SPI PGA (1-64), 5V Ext 0.001 35 SSOP-20 $6.50 ADS1253 24 20 4 SE/4 Diff Serial 5 Ext 0.0015 7.5 SSOP-16 $6.70 ADS1254 24 20 4 SE/4 Diff Serial 5 Ext 0.0015 4 SSOP-20 $6.70 ADS1251 24 20 1 SE/1 Diff Serial 5 Ext 0.0015 7.5 SOIC-8 $5.60 ADS1210/11 24 16 1 SE/1 Diff 4 SE/4 Diff Serial, SPI PGA (1-16), 5 Int/Ext 0.0015 27.5 SOIC-18 , -24, SSOP-28 $11.00 ADS1216 24 0.78 8 SE/4 Diff Serial, SPI PGA (1-128), 2.5 Int/Ext 0.0015 0.6 TQFP-48 $5.00 ADS1217 24 0.78 8 SE/4 Diff Serial, SPI PGA (1-128), 5 Int/Ext 0.0012 0.8 TQFP-48 $5.00 ADS1218 24 0.78 8 SE/4 Diff Serial, SPI PGA (1-128), 2.5 Int/Ext 0.0015 0.8 TQFP-48 $5.50 ADS1224 24 0.24 4 SE/4 Diff Serial 5 Ext 0.0015 0.5 TSSOP-20 $3.25 ADS1222 24 0.24 2 SE/2 Diff Serial 5 Ext 0.0015 0.5 TSSOP-14 $2.95
ADS1234 24 0.08 4 SE/4 Diff Serial PGA (1-128), 2.5 Ext 0.0015 3 TSSOP-28 $4.50 ADS1232 24 0.08 2 SE/2 Diff Serial PGA (1-128), 2.5 Ext 0.0015 3 TSSOP-24 $3.90 ADS1226 24 0.08 2 Diff Serial 5 Ext 0.0015 0.5 QFN-16 $2.95 ADS1225 24 0.08 1 Diff Serial 5 Ext 0.0015 0.5 QFN-16 $2.75
ADS1241 24 0.015 8 SE/4 Diff Serial, SPI PGA (1-128), 2.5 Ext 0.0015 0.5 SSOP-28 $4.20 ADS1243 24 0.015 8 SE/4 Diff Serial, SPI PGA (1-128), 2.5 Ext 0.0015 0.6 TSSOP-20 $3.95 ADS1240 24 0.015 4 SE/2 Diff Serial, SPI PGA (1-128), 2.5 Ext 0.0015 0.6 SSOP-24 $3.80 ADS1242 24 0.015 4 SE/2 Diff Serial, SPI PGA (1-128), 2.5 Ext 0.0015 0.6 TSSOP-16 $3.60 ADS1244 24 0.015 1 SE/1 Diff Serial 5 Ext 0.0008 0.3 MSOP-10 $2.95 ADS1245 24 0.015 1 SE/1 Diff Serial 2.5 Ext 0.0015 0.5 MSOP-10 $3.10 ADS1212/13 22 6.25 1 SE/1 Diff 4 SE/4 Diff Serial, SPI PGA (1-16), 5 Int/Ext 0.0015 1.4 SOIC-18, -24, SSOP-28 $9.00 ADS1250 20 25 1 SE/1 Diff Serial, SPI PGA (1-8), 4 Ext 0.003 75 SOIC-16 $6.95
ADS1230 20 0.08 1 SE/1 Diff Serial 0.02 Ext 0.003 3 TSSOP-16 $2.50
ADS1112 16 0.24 3 SE/2 Diff Serial, I2C PGA (1-8), 2.048 Int 0.01 0.7 MSOP-10, SON-10 $2.65 ADS1110 16 0.24 1 SE/1 Diff Serial, I2C PGA (1-8), 2.048 Int 0.01 0.7 SOT23-6 $1.95 ADS1100 16 0.128 1 SE/1 Diff Serial, I2C PGA (1-8), V
DD
Ext 0.0125 0.3 SOT23-6 $1.80
TLC7135 14 3 1 SE/1 Diff ±4.5 Digit MUX BCD V
REF
Ext 0.005 5 PDIP-28, SOIC-28 $1.95
ADS1000 12 0.128 1 SE/1 Diff Serial, I2C PGA(1-8), V
DD
Ext 0.0125 0.3 SOT23-6 $0.99
Delta-Sigma (∆Σ) ADCs for Measuring Low-Level Currents (Photodiodes)
DDC101 20 10 1 Serial 500pC Ext 0.025 170 SOIC-24 $29.00
DDC232 20 3 32 Serial 12-350pC Ext 0.025 224-320 BGA-64 $70.00
DDC118 20 3 8 Serial 12-350pC Ext 0.025 110 QFN-48 $32.00 DDC114 20 3 4 Serial 12-350pC Ext 0.025 55 QFN-48 $18.00 DDC112 20 3 2 Serial 50-1000pC Ext 0.025 80 SOIC-28 $12.10
*Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
56
ADCs by Architecture
Wide Bandwidth
∆Σ
ADCs
TI’s wide bandwidth Delta-Sigma (∆Σ) ADCs are capable of very high resolution and are capable of converting signals over a very wide range of frequencies from DC to several megahertz. Systems using these ADCs benefit from high speed, precision performance, and wide bandwidth (DC to 5MHz).
These ADCs employ a multi-stage propriatary­modulator architecture, which offer the advan­tage of inherent stability, and higher SQNR with lower oversampling ratio (OSR). Furthermore, these high-speed, ∆Σ converters are highly resistant to system clock jitter. The action of oversampling effectively averages the jitter, reducing the impact on noise.
The combination of speed and precision enable wide bandwidth signal processing applications for advanced scientific instrumen­tation for biomedical, bench test and measure, and communications applications.
16-Bit, 10MSPS, Very Wide Bandwidth ADC
ADS1610
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/ADS1610
Key Features
• Output data rate: 10MSPS
• Signal bandwidth: 4.9MHz
• SNR: 86dBFS
• THD: –94dB
• SFDR: 95dB
• SYNC pin for simultaneous sampling with
multiple ADS1610s
• Group delay: 3µs
• Pin-compatible with ADS1605
(5MSPS ADC)
• Packaging: TQFP-64
Applications
• Scientific instruments
• Test equipment
• Communications
• Wide-band signal analysis
The ADS1610 is a 10MSPS, high-precision ∆Σ ADC operating from a +5V analog and a +3V digital supply. Featuring an advanced multi-stage analog modulator combined with on-chip digital decimation filter, the ADS1610 achieves 86dBFS SNR at a 4.9MHz signal bandwidth. Output data is supplied over a parallel interface and easily connects to TMS320™ DSPs. Power dissipation can be adjusted with an external resistor, allowing for reduction at lower operating speeds.
ADS1610 functional block diagram.
ADS1610
Delta-Sigma (∆Σ) ADCs Selection Guide
Sample Number of Signal
Res. Rate Input Bandwidth SNR THD Power
Device (Bits) (kSPS) Channels Interface (kHz) (dB) (dB) (mW) Package Price
*
Wide Bandwidth Delta-Sigma (∆Σ) ADCs
ADS1626 18 1250 1 Diff P18 w/FIFO 615 93 –101 515 TQFP-64 $15.50 ADS1625 18 1250 1 Diff P18 615 93 –101 515 TQFP-64 $14.95
ADS1610 16 10000 1 Diff P16 4900 86 –94 960 TQFP-64 $19.95
ADS1606 16 5000 1 Diff P16 w/FIFO 2450 88 –99 570 TQFP-64 $15.50 ADS1605 16 5000 1 Diff P16 2450 88 –99 570 TQFP-64 $14.95 ADS1602 16 2500 1 Diff Serial 1230 91 –103 530 TQFP-48 $12.50 ADS1601 16 1250 1 Diff Serial 615 92 –103 350 TQFP-48 $9.95
*Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
VREFP VREFN VMID RBIAS VCAP
AVDD
AINP
AINN
Modulator
AGND
DVDD
Bias Circuits
Digital
Filter
Parallel
Interface
DGND
PD
SYNC
CLK
CS
2X MODE
RD
DRDY
OTR
DOUT[15:0]
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
ADCs by Architecture
Intelligent ADCs
57
Precision ADC and DACs with 8051 Microcontroller and Flash Memory
MSC1201, MSC1202
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/MSC1201 and www.ti.com/sc/device/MSC1202
MSC1201 functional block diagram.
The MSC1201Yx/MSC1202Yx are completely integrated families of mixed-signal devices incor­porating a high-resolution, ∆Σ ADC, 8-bit IDAC, 6-channel multiplexer, burnout detect current sources, selectable buffered input, offset DAC, PGA, temperature sensor, voltage reference, 8-bit microcontroller, Flash program memory, Flash data memory and Data SRAM. The microcontoller core is an optimized 8051 core that executes up to three times faster than the standard 8051 core, given the same clock source. This makes it possible to run the device at a lower external clock frequency and achieve the same performance at lower power than the standard 8051 core. The MSC1201Yx/MSC1202Yx are designed for high-resolution measurement applications.
8051-Based Intelligent ∆ΣMicroSystems Selection Guide
ADC Sample Number of Input Program DAC
Res. Rate Input Voltage Flash DAC Res. Power
Device (Bits) (kSPS) Channels (V) V
REF
Memory (kB) SRAM (kB) Output (Bits) (mW/V) Package Price
*
MSC1200 24 1 8 Diff/8 SE PGA (1-128), 2.5 Int/Ext 4/8 0.1 IDAC 8 3/2.7-5.25 TQFP-48 $5.95 MSC1201 24 1 6 Diff/6 SE PGA (1-128), 2.5 Int/Ext 4/8 0.1 IDAC 8 3/2.7-5.25 QFN-36 $5.60
MSC1210 24 1 8 Diff/8 SE PGA (1-128), 2.5 Int/Ext 4/8/16/32 1.2 PWM 16 4/2.7-5.25 TQFP-64 $8.95 MSC1211 24 1 8 Diff/8 SE PGA (1-128), 2.5 Int/Ext 4/8/16/32 1.2 I/VDAC 16x4 4/2.7-5.25 TQFP-64 $17.50 MSC1212 24 1 8 Diff/8 SE PGA (1-128), 2.5 Int/Ext 4/8/16/32 1.2 I/VDAC 16x4 4/2.7-5.25 TQFP-64 $16.95 MSC1213 24 1 8 Diff/8 SE PGA (1-128), 2.5 Int/Ext 4/8/16/32 1.2 I/VDAC 16x2 4/2.7-5.25 TQFP-64 $12.65 MSC1214 24 1 8 Diff/8 SE PGA (1-128), 2.5 Int/Ext 4/8/16/32 1.2 I/VDAC 16x2 4/2.7-5.25 TQFP-64 $12.15
MSC1202 16 2 6 Diff/6 SE PGA (1-128), 2.5 Int/Ext 4/8 0.2 IDAC 8 3/2.7-5.25 QFN-36 $4.60
*
Suggested resale price in U.S. dollars in quantities of 1,000 for base memory option. New products are listed in bold red.
Key Features
• MSC1201: 24-bits no missing codes, 22-bits effective resolution at 10Hz, low noise: 75nV
• MSC1202: 16-bits no missing codes, 16-bits effective resolution at 200Hz, noise: 600nV
• PGA from 1 to 128
• Precision on-chip voltage reference
• 6 differential/single-ended channels
• Microcontroller core:
8051 compatible
High speed: 4 clocks per
instruction cycle
DC to 33MHz
• Memory:
4kB or 8kB Flash memory
Flash memory partitioning
• Peripheral features: 16 digital I/O pins
Applications
• Industrial process control
• Instrumentation
• Liquid/gas chromatography
• Blood analysis
• Smart transmitters
• Portable applications
• DAS systems
MSC1201
AVDD AGND
AVDD
Burnout Detect
Temperature
Sensor
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AINCOM
IDAC
MUX
AGND
Burnout Detect
BUF
8-Bit IDAC
REFOUT/REFIN+
V
8-Bit
Offset DAC
PGA
REFIN– DVDD DGND
REF
Modulator
4kB or 8kB
FLASH
256 Bytes
SRAM
POR
ALVD
DBOR
Digital
System
Divider
Filter
ACC
8051
SFR
Clock
Timers/
Counters
WDT
PORT1
PORT3
On-Chip
Oscillator
PLL
XIN XOUT
ALTERNATE FUNCTIONS
RST
DIN DOUT
SS EXT
PROG
USART EXT T0 T1 SCK/SCL/CLKS
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
58
ADCs by Architecture
SAR ADCs
Successive-approximation register (SAR) converters are frequently the architecture of choice for medium-to-high-resolution applications with medium sampling rates. SAR ADCs range in resolution from 8- to 18-bits with speeds typically less than 10MSPS. They provide low power consumption and a small form factor.
A SAR converter operates on the same principle as a balance scale. On the scale, an unknown weight is placed on one side of the balance point, while known weights are placed on the other side and rejected or kept until the two sides are perfectly balanced. The unknown weight can then be measured by totaling up the kept, known weights. In the SAR converter, the input signal is the unknown weight, which is sampled and held. This voltage is then compared to successive known voltages, and the results are output by the converter. Unlike the weigh scale, conversion occurs very quickly through the use of charge redistribution techniques.
Because the SAR ADC samples the input signal and holds the sampled value until conversion is complete, this architecture does not make any assumptions about the nature of the input signal, and the signal therefore does not need to be continuous. This makes the SAR architecture ideal for applications where a multiplexer may be used prior to the converter, or for applications where the converter may only need to make a measurement once every few seconds, or for applications where a “fast” measurement is required. The conversion time remains the same in all cases, and has little sample-to­conversion latency compared to a pipeline or delta-sigma converter. SAR converters are ideal for real-time applications such as industrial control, motor control, power management, portable/battery-powered instruments, PDAs, test equipment and data/signal acquisition.
Technical Information
Modern SAR ADCs use a sample capacitor that is charged to the voltage of the input signal. Due to the ADC's input capacitance, input impedance, and external circuitry, a settling time will be required for the sample capacitor's voltage to match the measured input voltage.
Minimizing the external circuitry's source impedance is one way to minimize this settling time, assuring that the input signal is accurately acquired within the ADC’s acquisition time. A more troublesome design constraint, however, is the dynamic load that the SAR ADC's input presents to the driving circuitry. The op amp driver to the ADC input must be able to handle this dynamic load and
settle to the desired accuracy within the required acquisition time.
The SAR ADC's reference input circuitry presents a similar load to the reference voltage. While the reference voltage is supposed to be a very stable DC voltage, the dynamic load that the ADC's reference input presents makes achieving
this goal somewhat difficult. Thus, buffer circuitry is required for the reference voltage, and the op amp used for this has similar requirements as that used for driving the ADC input; in fact, the requirements on the op amp may be even higher than for the input signal as the reference input must be settled within one clock cycle. Some converters have this reference buffer amplifier built in.
Buffering these inputs using op amps with a low, wideband output impedance is the best way to preserve accuracy with these converters.
To help facilitate the selection process, an interactive online data converter parametric search engine is available at
dataconverter.ti.com with links to all
data converter specifications.
In a SAR ADC, the bits are decided by a single high-speed, high-accuracy comparator bit by bit, from the MSB down to the LSB. This is done by comparing the analog input with a DAC whose output is updated by previously decided bits and successively approximates the analog input.
REF
CDAC
SAR
SERIAL
DCLO
CS/SH
Serial Interface
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
ADCs by Architecture
SAR ADCs
59
16-Bit, 4MSPS, Fully Differential Input, microPower ADC with Parallel Interface
ADS8422
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/ADS8422
Key Features
• Fully differential input with pseudo-bipolar input range: –4V to +4V
• 16-bit NMC at 4MSPS
• INL: 1LSB (typ)
• SNR: –92dB
• THD: –102dB 9typ) at 100kHz input
• Internal reference (4.096V) and reference buffer
• Single-supply operation capability
• Low power: 155mW at 4MHz (typ); flexible power-down scheme
Applications
• DWDM
• Instrumentation
• High-speed, high-resolution, zero latency data acquisition systems
• Transducer interface
• Medical instruments
• Spectrum analysis
•ATE
The ADS8422 is a 16-bit, 4MSPS SAR ADC that includes a full 16-bit interface and an 8-bit option where data is ready using two 8-bit read cycles if necessary. It has a fully differential, pseudo-bipolar input.
ADS8422 functional block diagram.
12- and 16-Bit, ±10V Input, Single-Supply Family of SAR ADCs
ADS8504, ADS8505, ADS8506*, ADS8507, ADS8508, ADS8509, ADS8513*
Get samples, datasheets, and evaluation modules at:
www.ti.com/sc/device/PARTnumber (Replace PARTnumber with ADS8504, ADS8505, ADS8506, ADS8507, ADS8508, ADS8509 or ADS8513)
ADS850x functional block diagram.
*ADS8513 expected release date 3Q 07, ADS8506 expected release date 4Q 07.
Key Features
• Resolution:
12-bits (ADS8504/06/08)
16-bits (ADS8505/07/09/13)
• Sample rate: 250kSPS
• Input ranges: up to ±10V (ADS8504/05) 4V, 5V, 10V, ±3.3V, ±5V, ±10V (ADS8506/07/08/09/13)
• THD: –98dB with 20kHz input
• Single supply: 5V
• Low power: 70mW (typ) at 250kSPS
• Internal/external reference
• Full parallel data output (ADS8504/05/06);
SPI-compatible serial output with daisy-chain
(TAG) feature (ADS8507/08/09/13)
• Packaging: SOIC-28, SSOP-28 and SO-20
Applications
• Industrial process control
• Data acquisition systems
• Medical equipment
• Instrumentation
• Digital signal processing
The ADS850x family of devices are SAR ADCs complete with S/H, reference, clock, interface for microprocessor use and 3-state output drivers. The ADS8508 and ADS8509 also provide an output synchronization pulse for ease of use with standard DSP processors. An innovative design allows operation from a singe 5V supply, while keeping power dissipation below 100mW.
ADS8422
ADS8509
9.8k
R1IN
4.9k
R2IN
2.5k
R3IN
CAP
REF
10k
R/C
Successive Approximation Register and Control Logic
Buffer
4k
CDAC
Internal
+2.5V Ref
CS
PWRD
Comparator
Serial
Data
Out
Clock
EXT/INT
BUSY
SYNC
DATACLK
DATA
SAR
+IN
–IN
COMMOUT
REFIN
REFOUT
1/2
CDAC
Comparator
Clock
4.096-V
Internal Reference
Output
Latches
and 3-State
Drivers
Conversion
and
Control Logic
BYTE
16-/18-BIT PARALLEL DATA OUTPUT BUS
PD2
RESET/PD1
CONVST
BUSY CS RD
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
ADCs by Architecture
SAR ADCs
60
SAR
Output
Latches
and 3-State Drivers
BYTE 16-/8-BIT PARALLEL DA OUTPUT BUS BUS 18/16
CONVST BUSY CS RD
Conversion
and
Control Logic
Clock
REFOUT
Comparator
+IN
–IN
REFIN
4.096-V Internal
Reference
+
CDAC
18-Bit and 16-Bit 1MSPS, High-Performance ADCs
ADS8481, ADS8482, ADS8472
Get samples, datasheets, evaluation modules and app reports at www.ti.com/sc/device/PARTnumber (Replace PARTnumber with ADS8481, ADS8482, or ADS8472)
ADS8482 functional block diagram.
Key Features
• 16-bit, 1MSPS sample rate (ADS8472)
• 18-bits, 1MSPS sample rate (ADS8482)
• 18-bit NMC ensured over temperature
• Zero latency
• ADS8481: unipolar single-ended input range: 0V to V
REF
• ADS8482/ADS8472: bipolar differential input range: V
REF
to –V
REF
• Low power: 250mW at 1MSPS
• High-speed parallel interface
• Wide digital supply: 2.7V to ~5.25V
• 8-/16-/18-bit bus transfer
• Packaging: TQFP-48 or QFN-48 (7x7)
Applications
• Medical instrumentation
• Optical networking
• Transducer interface
• High-accuracy data acquisition systems
• Magnetometers
The ADS8481 and ADS8482 feature 18-bit no-missing-codes at 1MSPS low power consumption and are complete with sample/hold and internal 4.096V reference. The ADS8481 has a pseudo­differential unipolar input and the ADS8482 has a pseudo-bipolar, fully differential input. Both offer a full 18-bit interface, a 16-bit option where data is read using two read cycles, or an 8-bit bus option using three read cycles. The ADS8472 are 16-bit, 1MSPS versions.
CONVERSION
&
CONTROL
LOGIC
REF+
REF–
SAR
ADS8328 ADS8330
+IN1
+IN0
COM
ADS8327 ADS8329
NC
+IN
–IN
SDO
FS/CS–
SCLK
SDI CONVST– EOC/INT–/CDI
Comparator
CDAC
Output
Latch and
3-State Drivers
OSC
Conversion
and
Control Logic
16-Bit, 500kSPS and 1MSPS, Low Power, Single/Dual Unipolar Input ADCs
ADS8327, ADS8328, ADS8329, ADS8330
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/PARTnumber (Replace PARTnumber with ADS8327, ADS8328, ADS8329 or ADS8330)
ADS8328/ADS8330 functional block diagram.
Key Features
• Excellent DC performance (ADS8329):
INL: ±1LSB (typ)
DNL: ±0.5LSB (typ)
• Excellent AC performance (ADS8329):
SNR: 92dB
SFDR: 102dB
THD: –102dB
• Internal conversion clock
• Analog supply: 2.7V to 5.5V
• SPI/DSP-compatible serial interface
• Unipolar input range: 0V to V
REF
• Multiple power-down modes: Deep, Nap and Autonap
• Packaging: TSSOP-16, 4x4 QFN
Applications
• Communications
• Medical instruments
• Magnetometers
• Industrial process control
• ATE
The ADS8327 and ADS8328 (10.6mW at 500kHz) and the ADS8329 and ADS8330 (15.5mW at 1MHz) are low-power ADCs with unipolar input and inherent sample and hold. The ADS8328 and ADS8330 include a 2:1 input MUX with programmable option of TAG bit output. All offer a high-speed, wide voltage serial interface and are capable of chain mode operation when multiple converters are used.
ADS8482
ADS8328/ADS8330
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
ADCs by Architecture
Successive Approximation Analog-to-Digital Converters (SAR ADC)
61
Sample Number
Res. Rate of Input Input Voltage Linearity SINAD Power
Device (Bits) (kSPS) Channels Interface (V) V
REF
(%) NMC (dB) (mW) Package(s) Price
*
High-Speed SAR ADCs: <500kSPS
ADS8484 18 1,250 1 Diff P8/P16/P18 ±V
REF
(4.1V) at V
REF
/2 Int/Ext 0.0011 18 98 220 7x7 QFN, TQFP-48 $22.50
ADS8481 18 1,000 1 SE, 1 PDiff P8/P16/P18 V
REF
(4.1) Int/Ext 0.0013 18 92 220 7x7 QFN, TQFP-48 $19.80
ADS8482 18 1,000 1 Diff P8/P16/P18 ±V
REF
(4.1V) at V
REF
/2 Int/Ext 0.0011 18 98 220 7x7 QFN, TQFP-48 $20.25
ADS8380 18 600 1 SE, 1 PDiff Serial, SPI V
REF
Int/Ext 0.0015 18 90 110 6x6 QFN-28 $16.50
ADS8382 18 600 1 Diff Serial, SPI ±V
REF
(4.1V) at V
REF
/2 Int/Ext 0.0012 18 95 110 6x6 QFN-28 $16.95
ADS8381 18 580 1 SE, 1 PDiff P8/P16/P18 V
REF
(4.1) Ext 0.0019 18 88 115 TQFP-48 $16.65
ADS8383 18 500 1 SE, 1 PDiff P8/P16/P18 V
REF
(4.1) Ext 0.0026 18 85 110 TQFP-48 $15.75
ADS8422 16 4,000 1 Diff P8/P16 ±V
REF
(4.1V) at V
REF
/2 Int/Ext 0.0023 16 92.5 160 7x7 QFN, TQFP-48 $23.95
ADS8410 16 2,000 1 SE, 1 PDiff Serial, LVDS V
REF
(4.1) Int/Ext 0.0038 16 87.5 290 7x7 QFN-48 $23.00
ADS8411 16 2,000 1 SE, 1 PDiff P8/P16 V
REF
Int 0.0038 16 85 175 TQFP-48 $22.00
ADS8413 16 2,000 1 Diff Serial, LVDS ±V
REF
(4.1V) at V
REF
/2 Int/Ext 0.0038 16 92 290 7x7 QFN-48 $24.05
ADS8412 16 2,000 1 Diff P8/P16 ±V
REF
(4.1V) at V
REF
/2 Int 0.0038 16 88 175 TQFP-48 $23.05
ADS8401 16 1,250 1 SE, 1 PDiff P8/P16 V
REF
Int 0.0053 16 85 155 TQFP-48 $12.55
ADS8405 16 1,250 1 SE, 1 PDiff P8/P16 V
REF
Int/Ext 0.003 16 85 155 TQFP-48 $14.10
ADS8402 16 1,250 1 Diff P8/P16 ±V
REF
(4.1V) at V
REF
/2 Int 0.0053 16 88 155 TQFP-48 $13.15
ADS8406 16 1,250 1 Diff P8/P16 ±V
REF
(4.1V) at V
REF
/2 Int/Ext 0.003 16 90 155 TQFP-48 $14.70
ADS8330 16 1,000 2 SE Serial, SPI V
REF
(4.2V at 5V, 2.5V at 2.7V Supply) Ext 0.0027 16 92 20 TSSOP-16 $11.85
ADS8329 16 1,000 1 SE Serial, SPI V
REF
(4.2V at 5V, 2.5V at 2.7V Supply) Ext 0.0027 16 92 20 TSSOP-16 $11.25
ADS8472 16 1,000 1 Diff P8/P16 ±V
REF
(4.2V) at V
REF
/2 Int/Ext 0.00098 16 94 225 6x6 QFN-28 $17.50
ADS8371 16 750 1 SE, 1 PDiff P8/P16 V
REF
Ext 0.0022 16 87.6 130 TQFP-48 $12.00
ADS8370 16 600 1 SE, 1 PDiff Serial, SPI V
REF
Int/Ext 0.0015 16 90 110 6x6 QFN-28 $12.50
ADS8372 16 600 1 Diff Serial, SPI ±V
REF
(4.2V) at V
REF
/2 Int/Ext 0.0011 16 93.5 110 6x6 QFN-28 $13.00
ADS8361 16 500 2 x 2 Diff Serial, SPI ±2.5V at +2.5 Int/Ext 0.00375 14 83 150 SSOP-24 $8.75
ADS8328 16 500 2 SE Serial, SPI V
REF
(4.2V at 5V, 2.5V at 2.7V Supply) Ext 0.00305 16 88.5 10.6 TSSOP-16 $9.30
ADS8327 16 500 1 SE Serial, SPI V
REF
(4.2V at 5V, 2.5V at 2.7V Supply) Ext 0.00305 16 88.5 10.6 TSSOP-16 $8.50 ADS8322 16 500 1 PDiff P8/P16 5 Int/Ext 0.009 15 83 85 TQFP-32 $7.10 ADS8323 16 500 1 Diff P8/P16 ±2.5V at 2.5 Int/Ext 0.009 15 83 85 TQFP-32 $7.10 ADS7891 14 3,000 1 SE P8/P14 2.5 Int 0.009 14 78 85 TQFP-48 $10.50 ADS7890 14 1,250 1 SE Serial, SPI 2.5 Int 0.009 14 77 45 TQFP-48 $10.50 ADS7881 12 4,000 1 SE P8/P12 2.5 Int 0.024 12 71.5 95 7x7 QFN, TQFP-48 $7.35
ADS7863 12 2,000 2 x 2 Diff Serial, SPI ±2.5 at 2.5 Int/Ext 0.024 12 71 50 SSOP-24 $4.90
ADS7869 12 1,000 12 Diff Serial, SPI/P12 ±2.5 at +2.5 Int/Ext 0.048 11 175 TQFP-100 $14.60
ADS7886 12 1,000 1 SE Serial, SPI VDD(2.35V to 5.25V) Ext (VDD) 0.030 12 71.2 7.5 SOT23-6, SC-70 $1.70
ADS7810 12 800 1 SE P12 ±10 Int/Ext 0.018 12 71 225 SOIC-28 $27.80 ADS7852 12 500 8 SE P12 5 Int/Ext 0.024 12 72 13 TQFP-32 $3.40 ADS7864 12 500 3 x 2 Diff P12 ±2.5 at +2.5 Int/Ext 0.024 12 71 52.5 TQFP-48 $6.65 ADS7861 12 500 2 x 2 Diff Serial, SPI ±2.5 at +2.5 Int/Ext 0.024 12 70 25 SSOP-24, QFN-32 $4.05 ADS7862 12 500 2 x 2 Diff P12 ±2.5 at +2.5 Int/Ext 0.024 12 71 25 TQFP-32 $5.70 ADS7818 12 500 1 PDiff Serial, SPI 5 Int 0.024 12 70 11 PDIP-8, VSSOP-8 $2.50 ADS7834 12 500 1 PDiff Serial, SPI 2.5 Int 0.024 12 70 11 VSSOP-8 $2.45 ADS7835 12 500 1 SE Serial, SPI ±2.5 Int 0.024 12 72 17.5 VSSOP-8 $2.75 TLV1570 10 1,250 8 SE Serial, SPI 2V, V
REF
Int/Ext 0.1 10 60 9 SOIC-20, TSSOP-20 $3.80
TLV1578 10 1,250 8 SE P/0 V
REF
Ext 0.1 10 60 12 TSSOP-32 $3.85
ADS7887 10 1,250 1 SE Serial, SPI VDD(2.35V to 5.25V) Ext (VDD) 0.073 10 61 8 SOT23-6, SC-70 $1.50
TLV1571 10 1,250 1 SE P/0 V
REF
Ext 0.1 10 60 12 SOIC-24, TSSOP-24 $3.70
TLV1572 10 1,250 1 SE Serial, SPI V
REF
Ext 0.1 10 60 8.1 SOIC-8 $3.30
ADS7888 8 1,250 1 SE Serial, SPI VDD(2.35V to 5.25V) Ext (VDD) 0.2 8 49.5 8 SOT23-6, SC-70 $0.85
TLV571 8 1,250 1 SE P8 V
REF
Ext 0.5 8 49 12 SOIC-24, TSSOP-24 $2.35
ADS8515 16 250 1 SE P16 ±10 Int/Ext 0.0022 16 92 70 SSOP-28, QFN-32 $10.95
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
ADCs by Architecture
Successive Approximation Analog-to-Digital Converters (SAR ADC) (Continued)
62
Sample Number
Res. Rate of Input Input Voltage Linearity SINAD Power
Device (Bits) (kSPS) Channels Interface (V) V
REF
(%) NMC (dB) (mW) Package(s) Price
*
Bipolar Input SAR ADCs
ADS8509 16 250 1 SE Serial, SPI +4, 10, ±3.3, 5, 10 Int/Ext 0.003 16 86 70 SOIC-20, SSOP-28 $12.95 ADS8505 16 250 1 SE P8/P16 ±10 Int/Ext 0.0022 16 86 70 SOIC-28, SSOP-28 $12.95
ADS7811 16 250 1 SE P16 ±2.5 Int/Ext 0.006 15 87 200 SOIC-28 $36.15 ADS7815 16 250 1 SE P16 ±2.5 Int/Ext 0.006 15 84 200 SOIC-28 $21.30 ADS7805 16 100 1 SE P8/P16 ±10 Int/Ext 0.0045 16 86 81.5 PDIP-28, SOIC-28 $25.00 ADS7809 16 100 1 SE Serial, SPI +4, 10, ±3.3, 5, 10 Int/Ext 0.0045 16 88 81.5 SOIC-20 $25.00 ADS7825 16 40 4 SE Serial, SPI/P8 ±10 Int/Ext 0.003 16 83 50 PDIP-28, SOIC-28 $29.55
ADS8507 16 40 1 SE Serial, SPI/P8 4, 5, ±10 Int/Ext 0.0022 16 89.9 24 SOIC-28 $13.00
ADS7807 16 40 1 SE Serial, SPI/P8 4, 5, ±10 Int/Ext 0.0022 16 88 28 PDIP-28, SOIC-28 $32.30
ADS8513 16 40 1 SE Serial, SPI +4, 10, ±3.3, 5, 10 Int/Ext 0.0023 16 89.9 30 SOIC-16 $12.00
ADS7813 16 40 1 SE Serial, SPI +4, 10, ±3.3, 5, 10 Int/Ext 0.003 16 89 35 PDIP-16, SOIC-16 $24.70 TLC3578 14 200 8 SE Serial, SPI ±10 Ext 0.006 14 79 29 SOIC-24, TSSOP-24 $8.65 TLC3574 14 200 4 SE Serial, SPI ±10 Ext 0.006 14 79 29 SOIC-24, TSSOP-24 $6.85 ADS7810 12 800 1 SE P12 ±10 Int/Ext 0.018 12 71 225 SOIC-28 $27.80 ADS7835 12 500 1 SE Serial, SPI ±2.5 Int 0.024 12 72 17.5 VSSOP-8 $2.75 ADS7800 12 333 1 SE P8/P12 ±5, 10 Int 0.012 12 72 135 CDIP SB-24, PDIP-24 $30.50
ADS8508 12 250 1 SE Serial, SPI +4, 10, ±3.3, 5, 10 Int/Ext 0.011 12 73 70 SSOP-28, SOIC-20 $10.50 ADS8504 12 250 1 SE P8/P16 ±10 Int/Ext 0.011 12 72 70 SSOP-28, SOIC-28 $10.50
TLC2578 12 200 8 SE Serial, SPI ±10 Ext 0.024 12 79 29 SOIC-24, TSSOP-24 $5.80 TLC2574 12 200 4 SE Serial, SPI ±10 Ext 0.024 12 79 29 SOIC-20, TSSOP-20 $5.30 ADS7804 12 100 1 SE P8/P16 ±10 Int/Ext 0.011 12 72 81.5 PDIP-28, SOIC-28 $16.55 ADS7808 12 100 1 SE Serial, SPI +4, 10 , ±3.3, 5, 10 Int/Ext 0.011 12 73 81.5 SOIC-20 $12.80
ADS8506 12 80 1 SE Serial, SPI/P8 +4, 5, ±10 Int/Ext 0.011 12 73 24 SOIC-28 $8.50
ADS7824 12 40 4 SE Serial, SPI/P8 ±10 Int/Ext 0.012 12 73 50 PDIP-28, SOIC-28 $13.10 ADS7806 12 40 1 SE Serial, SPI/P8 +4, 5, ±10 Int/Ext 0.011 12 73 28 PDIP-28, SOIC-28 $15.05 ADS7812 12 40 1 SE Serial, SPI +4, 10, ±3.3, 5, 10 Int/Ext 0.012 12 74 35 PDIP-16, SOIC-16 $11.80
General Purpose SAR ADCs
ADS8342 16 250 8 SE P8/P16 ±2.5 Ext 0.006 16 85 200 TQFP-48 $11.30
ADS8365 16 250 1 x 6 Diff P16 ±2.5V at +2.5 Int/Ext 0.006 14 87 190 TQFP-64 $16.25
ADS8364 16 250 1 x 6 Diff P16 ±2.5V at +2.5 Int/Ext 0.009 14 82.5 413 TQFP-64 $18.10
ADS8326 16 250 1 SE, 1 PDiff Serial, SPI V
REF
Ext 0.0022 16 91 6 VSSOP-8, QFN-8 $5.00
ADS8317 16 200 1 Diff Serial, SPI ±V
REF
at V
REF
Ext 0.0022 16 88 6 VSSOP-8, SON-8 $5.90
TLC4541 16 200 1 SE Serial, SPI V
REF
Ext 0.0038 16 84.5 17.5 SOIC-8, VSSOP-8 $6.85
TLC4545 16 200 1 PDiff Serial, SPI V
REF
Ext 0.0038 16 84.5 17.5 SOIC-8, VSSOP-8 $6.85
ADS8344 16 100 8 SE/4 Diff Serial, SPI V
REF
Ext 0.006 15 86 3.6 SSOP-20 $8.00
ADS8345 16 100 8 SE/4 Diff Serial, SPI ±V
REF
at V
REF
Ext 0.006 15 85 3.6 SSOP-20 $8.00
ADS8341 16 100 4 SE/2 Diff Serial, SPI V
REF
Ext 0.006 15 86 3.6 SSOP-16 $7.40
ADS8343 16 100 4 SE/2 Diff Serial, SPI ±V
REF
at V
REF
Ext 0.006 15 86 3.6 SSOP-16 $7.45
ADS8320 16 100 1 SE, 1 PDiff Serial, SPI V
REF
Ext 0.012 15 84 1.95 VSSOP-8 $5.15
ADS8325 16 100 1 SE, 1 PDiff Serial, SPI V
REF
Ext 0.006 16 91 2.25 VSSOP-8, QFN-8 $5.90
ADS8321 16 100 1 Diff Serial, SPI ±V
REF
at +V
REF
Ext 0.012 15 84 5.5 VSSOP-8 $5.15 TLC3548 14 200 8 SE Serial, SPI 4 Int/Ext 0.006 14 81 20 SOIC-24, TSSOP-24 $6.40 TLC3544 14 200 4 SE Serial, SPI 4 Int/Ext 0.006 14 81 20 SOIC-20, TSSOP-20 $6.00 TLC3541 14 200 1 SE Serial, SPI V
REF
Ext 0.006 14 81.5 17.5 SOIC-8, VSSOP-8 $5.00 TLC3545 14 200 1 PDiff Serial, SPI V
REF
Ext 0.006 14 81.5 17.5 SOIC-8, VSSOP-8 $5.00 ADS8324 14 50 1 Diff Serial, SPI ±V
REF
at +V
REF
Ext 0.012 14 78 2.5 VSSOP-8 $4.15 ADS7871 14 40 8 SE/4 Diff Serial, SPI PGA (1, 2, 4, 8, 10, 16, 20) Int 0.03 13 6 SSOP-28 $5.00 TLC2558 12 400 8 SE Serial, SPI 4 Int/Ext 0.024 12 71 9.5 SOIC-20, TSSOP-20 $5.30 TLC2554 12 400 4 SE Serial, SPI 4 Int/Ext 0.024 12 71 9.5 SOIC-16, TSSOP-16 $5.30 TLC2552 12 400 2 SE Serial, SPI V
REF
Ext 0.024 12 72 15 SOIC-8, VSSOP-8 $3.95 TLC2551 12 400 1 SE Serial, SPI V
REF
Ext 0.024 12 72 15 SOIC-8, VSSOP-8 $3.95 ADS7844 12 200 8 SE/4 Diff Serial, SPI V
REF
, ±V
REF
at V
REF
Ext 0.024 12 72 0.84 SSOP-20 $2.90
AMC7823 12 200 8 SE I/O DAS Serial, SPI V
REF
(5.0) Int/Ext 0.024 12 74 100 QFN-40 $9.75
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
ADCs by Architecture
Successive Approximation Analog-to-Digital Converters (SAR ADC) (Continued)
63
Sample Number
Res. Rate of Input Input Voltage Linearity SINAD Power
Device (Bits) (kSPS) Channels Interface (V) V
REF
(%) NMC (dB) (mW) Package(s) Price
*
General Purpose SAR ADCs (Continued)
TLV2548 12 200 8 SE Serial, SPI +2, 4 Int/Ext 0.024 12 70 3.3 SOIC-20, TSSOP-20 $4.85 ADS7841 12 200 4 SE/2 Diff Serial, SPI V
REF
, ±V
REF
at V
REF
Ext 0.024 12 72 0.84 SSOP-16 $2.50
ADS7842 12 200 4 SE P12 V
REF
Ext 0.024 12 72 0.84 SSOP-28 $3.10 TLV2544 12 200 4 SE Serial, SPI +2, 4 Int/Ext 0.024 12 70 3.3 SOIC-16, TSSOP-16 $4.20 TLV2542 12 200 2 SE Serial, SPI V
REF
Ext 0.024 12 72 2.8 SOIC-8, VSSOP-8 $3.85 TLV2553 12 200 11 SE Serial, SPI V
REF
Ext 0.024 12 2.43 SOIC-20, TSSOP-20 $3.40 TLV2556 12 200 11 SE Serial, SPI V
REF
Int/Ext 0.024 12 2.43 SOIC-20, TSSOP-20 $3.55
ADS7866 12 200 1 SE, 1 PDiff Serial, SPI VDD(1.2V to 3.6V) Ext 0.024 12 70 0.25 SOT23-6 $1.85
TLV2541 12 200 1 SE Serial, SPI V
REF
Ext 0.024 12 72 2.8 SOIC-8, VSSOP-8 $3.85 ADS7816 12 200 1 PDiff Serial, SPI V
REF
Ext 0.024 12 72 1.9 PDIP/SOIC/VSSOP-8 $1.95 TLV2545 12 200 1 PDiff Serial, SPI +5.5 (V
REF
= VDD) Ext 0.024 12 72 2.8 SOIC-8, VSSOP-8 $3.85
ADS7822 12 200 1 PDiff Serial, SPI V
REF
Ext 0.018 12 71 0.6 PDIP, SOIC, VSSOP-8 $1.55 ADS7817 12 200 1 Diff Serial, SPI ±V
REF
at +V
REF
Ext 0.024 12 71 2.3 SOIC-8, VSSOP-8 $1.95 ADS7829 12 125 1 PDiff Serial, SPI V
REF
Ext 0.018 12 71 0.6 QFN-8 $1.50 AMC7820 12 100 8 SE DAS Serial, SPI V
REF
(5.0) Int/Ext 0.024 12 72 40 TQFP-48 $3.75
TLC2543 12 66 11 SE Serial, SPI V
REF
Ext 0.024 12 5 CDIP, PDIP, PLCC, SOIC, SSOP-20 $4.45 TLV2543 12 66 11 SE Serial, SPI V
REF
Ext 0.024 12 3.3 PDIP-20, SOIC-20, SSOP-20 $4.45 ADS7828 12 50 8 SE/4 Diff Serial, I2CV
REF
Int/Ext 0.024 12 71 0.675 TSSOP-16 $3.35 ADS7870 12 50 8 SE Serial, SPI PGA (1, 2, 4, 8, 10, 16, 20) Int 0.06 12 72 4.6 SSOP-28 $4.15 ADS7823 12 50 1 SE Serial, I2CV
REF
Ext 0.024 12 71 0.75 VSSOP-8 $2.85
ADS1286 12 37 1 PDiff Serial, SPI V
REF
Ext 0.024 12 72 1 PDIP-8, SOIC-8 $2.80
TLC1518 10 400 8 SE/7 Diff Serial, SPI +5.5 (V
REF
= VDD) Int/Ext 0.012 10 60 10 SOIC-20, TSSOP-20 $3.45
TLC1514 10 400 4 SE/3 Diff Serial, SPI +5.5 (V
REF
= VDD) Int/Ext 0.012 10 60 10 SOIC-16, TSSOP-16 $2.90 TLV1508 10 200 8 SE Serial, SPI +2, 4 Int/Ext 0.05 10 60 3.3 SOIC-20, TSSOP-20 $3.15 TLV1504 10 200 4 SE Serial, SPI +2, 4 Int/Ext 0.05 10 60 3.3 SOIC-16, TSSOP-16 $2.65
ADS7867 10 200 1 SE, 1 PDiff Serial, SPI VDD(1.2V to 3.6V) Ext 0.05 10 61 0.25 SOT23-6 $1.40
ADS7826 10 200 1 PDiff Serial, SPI V
REF
Ext 0.0048 10 62 0.6 QFN-8 $1.25
TLC1550 10 164 1 SE P10 V
REF
Ext 0.05 10 10 PLCC-28, SOIC-24 $3.90
TLC1551 10 164 1 SE P10 V
REF
Ext 0.1 10 10 PLCC-28, SOIC-24 $3.35
TLV1548 10 85 8 SE Serial, SPI V
REF
Ext 0.1 10 1.05 CDIP, LCCC, SSOP-20 $2.30
TLV1544 10 85 4 SE Serial, SPI V
REF
Ext 0.1 10 1.05 SOIC-16, TSSOP-16 $1.95
TLC1542 10 38 11 SE Serial, SPI V
REF
Ext 0.05 10 4 CDIP, LCCC, PDIP, PLCC, SOIC-20 $2.50
TLC1543 10 38 11 SE Serial, SPI V
REF
Ext 0.1 10 4 PLCC/SOIC/SSOP-20 $1.90
TLV1543 10 38 11 SE Serial, SPI V
REF
Ext 0.1 10 2.64 PDIP, PLCC, SOIC, SSOP-20 $2.15
TLC1549 10 38 1 SE Serial, SPI V
REF
Ext 0.1 10 4 PDIP-8, SOIC-8 $1.71
TLV1549 10 38 1 SE Serial, SPI V
REF
Ext 0.1 10 1.32 PDIP-8, SOIC-8 $1.85
TLC1541 10 32 11 SE Serial, SPI V
REF
Ext 0.1 10 6 PDIP/PLCC/SOIC-20 $3.20
TLC0820A 8 392 1 SE P8 V
REF
Ext 0.2 8 37.5 PLCC/SOIC/SSOP-20 $1.90
ADS7827 8 250 1 PDiff Serial, SPI V
REF
Ext 0.2 8 48 0.6 QFN-8 $1.00
ADS7868 8 200 1 SE, 1 PDiff Serial, SPI VDD(1.2V to 3.6V) Ext 0.1 8 50 0.25 SOT23-6 $0.80
TLC545 8 76 19 SE Serial, SPI V
REF
Ext 0.2 8 6 PDIP-28, PLCC-28 $3.10
ADS7830 8 75 8 SE/4 Diff Serial, I2CV
REF
Int/Ext 0.19 8 50 0.675 TSSOP-16 $1.40
TLV0831 8 49 1 SE Serial, SPI +3.6 (V
REF
= VDD) Ext 0.2 8 0.66 PDIP-8, SOIC-8 $1.40 TLC548 8 45.5 1 SE Serial, SPI V
REF
Ext 0.2 8 9 PDIP-8, SOIC-8 $1.20
TLV0832 8 44.7 2 SE/1 Diff Serial, SPI V
REF
Ext 0.2 8 5 PDIP-8, SOIC-8 $1.40
TLV0834 8 41 4 SE/2 Diff Serial, SPI V
REF
Ext 0.2 8 0.66 PDIP/SOIC/TSSOP-14 $1.45
TLC541 8 40 11 SE Serial, SPI V
REF
Ext 0.2 8 6 PDIP, PLCC, SOIC-20 $1.50
TLC549 8 40 1 SE Serial, SPI V
REF
Ext 0.2 8 9 PDIP-8, SOIC-8 $0.95
TLV0838 8 37.9 8 S/4 Diff Serial, SPI V
REF
Ext 0.2 8 0.66 PDIP, SOIC, TSSOP-20 $1.45
TLC0831 8 31 1 Diff Serial, SPI V
REF
Ext 0.2 8 3 PDIP-8, SOIC-8 $1.40
TLC542 8 25 11 SE Serial, SPI V
REF
Ext 0.2 8 6 PDIP, PLCC, SOIC-20 $1.50
TLC0832 8 22 2 SE/1 Diff Serial, SPI V
REF
Ext 0.2 8 12.5 PDIP-8, SOIC-8 $1.40
TLC0838 8 20 8 SE/4 Diff Serial, SPI V
REF
Ext 0.2 8 3 PDIP, SOIC, TSSOP-20 $1.45
TLC0834 8 20 4 SE/2 Diff Serial, SPI V
REF
Ext 0.2 8 3 PDIP-14, SOIC-14 $1.45
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
64
ADCs by Architecture
Pipeline ADCs
Analog-to-digital converters featuring sampling rates of 10s of MSPS are likely based on the pipeline architecture. The pipelined ADC consists of N cascaded stages. The concurrent operation of all pipeline stages makes this architecture suitable for achieving very high conversion rates. The stages themselves are essentially identical, lined up in an assembly line fashion and designed to convert only a portion of the analog sample. The digital output of each stage is combined to produce the parallel data output bits. A new digitized sample becomes available with every clock cycle. The internal combination process itself requires a digital delay, which is commonly referred to as the pipeline delay, or data latency. For most applications this is not a limitation since the delay, expressed in number of clock cycles, is a constant and can be accounted for.
One of the key architectural features of pipeline ADCs that allows high dynamic performances at high signal frequencies is the differential signal input. The differential input configuration results in the optimum dynamic range since it leads to smaller signal amplitude and a reduction in even-order harmonics. Almost all high-speed pipeline ADCs use a single-supply voltage, ranging from +5V down to +1.8V. Therefore, most require the analog input to operate with a common-mode voltage, which typically is at the mid-supply level. This common-mode or input bias requirement comes into considera­tion when defining the input interface circuitry that will drive the ADC. Switched capacitor inputs should also be considered.
Technical Information
Pipeline ADCs also employ the basic idea of moving charge samples, which represent the input voltage level at the particular sample incident, from one stage to the next. The differential pipeline structure is highly repetitive where each of the pipeline stages consists of a sample-and-hold (S/H), a low-resolution ADC and DAC, and a sum­ming circuit that includes an interstage amplifier to provide gain.
The analog signal is sampled with the first S/H circuit, which may also facilitate a single­ended to differential conversion. This S/H is one of the most critical blocks as it typically sets the performance limits of the converter. As the captured sample passes through the pipeline, the conversion is iterated by the stages that refine the conversion with increasing resolution as they pass the remainder signal from stage to stage. Each stage performs an analog-to-digital conver­sion, and a back-conversion to analog. The difference between the D/A output and the held input is the residue that is amplified and sent to the next stage where this process is repeated.
In order to properly design the interface circuit to the pipeline ADC, its switched-capacitor input structure needs to be considered. The input impedance of the pipeline converter represents a capacitive load to the driving source. Furthermore, it is dynamic since it is a function of the sampling rate (1/fs). The internal switches generate small transient current pulses that may affect the settling behavior of the source. To reduce the effects of this switched-capacitor, input series resistors and a shunt capacitor are typically recommended. This will also ensure stability and fast settling of the driving amplifier.
To select an appropriate interface circuit configuration, it is important to determine whether the application is time domain in nature (e.g. CCD-based imaging system) or a frequency domain application (e.g. communi­cation system). Time domain applications usually have an input frequency bandwidth that includes DC. Frequency domain applica­tions, on the other hand, are typically ac­coupled. The key converter specifications here are SFDR, SNR, aperture jitter and analog input bandwidth; the last two specifications particularly apply to undersampling applications. The optimum interface configuration will depend on whether the application calls for wide dynamic range (SFDR), or low noise (SNR), or both.
Critical to the performance of high-speed ADCs is the clock signal, since a variety of internal timing signals are derived from this clock. Pipeline ADCs may use both the rising and falling clock edge to trigger internal functions. For example, sampling occurs on the rising edge prompting this edge to have very low jitter. Clock jitter leads to aperture jitter, which can be the ultimate limitation in achieving good SNR performance. Particularly in undersampling applications, special consideration should be given to clock jitter.
Pipeline ADCs consist of consecutive stages, each containing a S/H, a low-resolution ADC and DAC, and a summing circuit that includes an interstage amplifier to provide gain.
Latch
Gain = 2
Amplified
Analog
Residue
+
Sample/Hold
C
s
ADC
N EFFECTIVE BITS OUT
INPUT
N OUTPUT BITS
PER STAGE
+
V1
DAC
Stage 1 Stage 2
V0
ANALOG PIPELINE
Stage N
+
Latch
DIGITAL OUTPUT
+
+
WORD
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
ADCs by Architecture
Pipeline ADCs
65
Key Features
• Resolution: 14-bit
• Sample rate: 80/105MSPS
• High SNR: 74.4dBc at
30MHz IF (ADS5433)
• High SFDR: 96.5dBc at
30MHz IF (ADS5433)
• Differential input range: 2.2Vpp
• Supply operation: 5V
• 3.3V CMOS-compatible outputs
• Total power dissipation: 1.85W
• 2s complement output format
• On-chip input analog buffer, track and
hold, and reference circuit
• Pin compatible to AD6644/45
• Industrial temperature range:
–40°C to +85°C
• Packaging: 52-lead HTQFP with exposed
heatsink
Applications
• Single and multichannel digital receivers
• Base station infrastructure
• Instrumentation
• Video and imaging
14-Bit, 80MSPS/105MSPS ADCs
ADS5424, ADS5423, ADS5433
Get datsheets and app reports at: www.ti.com/sc/device/PARTnumber (Replace PARTnumber with ADS5424, ADS5423 or ADS5433)
ADS542x family functional block diagram.
The ADS5433 is a new member of the high-performance wideband, bipolar analog-to-digital converter family which includes the ADS5423 (14-bit, 80MSPS) and ADS5424 (14-bit, 105MSPS). The ADS5433 is a 14-bit, 80 MSPS ADC optimized for high SFDR performance up to 100MHz input frequency; offering users up to 11dB better SFDR performance when compared to 14-bit and 16-bit ADCs with similar sample rates. This increased SFDR performance allows for increased receiver sensitivity and better adjacent channel rejection in wireless receiver designs.
ADS5424
12-Bit, 125MSPS, Quad Channel ADC with Serial LVDS Interface
ADS6425
Get datasheets at: www.ti.com/ADS6425
ADS6425 functional block diagram.
Key Features
• 12-bit resolution at 125MSPS
• Resolution: 12-bit
• Total power: 1.65W
• SNR: 70.3dBFS at FIN= 50MHz
• SFDR: 83dBc at FIN= 50MHz, 0dB gain,
3.5dB coarse gain and up to 6dB programmable fine gain for SFDR/SNR trade-off
• Serialized LVDS outputs with
programmable internal termination option
• No external decoupling required for references
• Analog and digital supply: 3.3V
• Packaging: QFN-64
Applications
• Base station IF receivers
• Diversity receivers
• Medical imaging
• Test equipment
The ADS6425 is a high-performance, 12-bit, 125MSPS quad-channel ADC with serial LVDS data outputs to reduce the number of interface lines to allow for higher system integration density. It includes a 3.5dB coarse gain option that can be used to improve SFDR performance with little degradation in SNR. Fine gain options exist up to 6dB with programmable 1dB steps. The LVDS output buffers have features such as programmable LVDS currents, current doubling modes and internal termination options. These can be used to widen eye-openings and improve signal integrity, easing capture by the receiver.
ADS6425
AVDD
AGND
CLKP CLKM
INA_P
INA_M
SHA
IND_P
IND_M
VCM
SHA
Reference
12-Bit
12-Bit
REFP
CAP
LVD D
LGND
BIT Clock
PLL
ADC
ADC
REFM
Interface
Parallel
FRAME Clock
Digital
Encoder and
Serializer
Digital
Encoder and
Serializer
Serial
Interface
DCLKP DCLKM
FCLKP FCLKM
DA0_P DA0_M
DA1_P DA1_M
DD0_P DD0_M
DD1_P DD1_M
PDN
CFG1
CFG2
CFG3
CFG4
SEN
SCLK
RESET
SDATA
AVD D
AIN
AIN
VREF
CLK+ CLK–
C1 C2
A1
Reference
TH1
ADC1
Tim ing
DMID
TH2
+
DAC1
5
OVR
A2
Σ
Digital Error Correction
DRY
ADC2
TH3
DAC2
5
D[13:0]
+
Σ
A3
DRVDD
ADC3
6
GND
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
ADCs by Architecture
Pipeline ADCs
66
SHA
14-Bit
ADC
CLOCKGEN
Reference
Control
Interface
INP
INM
CLKP
CLKM
VCM
CLKOUTP
CLKOUTM
D0_D1_P
D0_D1_M
D2_D3_P
D4_D5_P
D6_D7_P
D8_D9_P
D10_D11_P
D12_D13_P
D2_D3_M
D4_D5_M
D6_D7_M
D8_D9_M
D10_D11_M
D12_D13_M
OVR
LVDS MODE
IREF
SCLK
SEN
SDATA
RESET
OE
DFS
MODE
AVDD
AGND
DRVDD
DRGND
Digital Encoder
and
Serializer
14-Bit, 170MSPS/190MSPS/210MSPS ADCs with LVDS/CMOS Outputs
ADS5545, ADS5546, ADS5547
Get datasheets at: www.ti.com/ADS5546, www.ti.com/ADS5545 or www.ti.com/sc/device/ADS5547
ADS5547 functional block diagram.
Key Features
• SNR: 73.2dBc at 70MHz IF
• SFDR: 84dBc at 70MHz IF
• Total power disipation: 1.1W
• DDR LVDS and parallel CMOS output options
• Internal/external reference support
• Clock duty cycle stabilizer
• 3.3V analog and digital supply
• Packaging: QFN-48 (7x7mm)
Applications
• Wireless communication infrastructure
• Software-defined radio
• Power amplifier linearization
• Test and measurement
• Medical imaging
• Radar systems
The ADS5545, ADS5546, and ADS5547 are 14-bit, 170MSPS, 190MSPS and 210MSPS, respec­tively, ADCs that operate from a 3.3V supply and offer unprecedented digital output flexibility with fully differential double data rate (DDR) LVDS or parallel CMOS output options. Using an internal sample and hold and low jitter clock buffer, the three devices support high SNR and high SFDR at high IFs. The ADS5525 and ADS5527 are pin compatible 12-bit, 170MSPS and 210MSPS versions of the ADS5545 and ADS5547, respectively.
ADS5547
Monolithic 12-Bit, 500MSPS ADC
ADS5463
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/ADS5463
ADS5463 functional block diagram.
Key Features
• 12-bit resolution at 500MSPS
• SNR: 65.5dBFS at 100MHz f
IN
• SFDR: 80dBc at 100MHz f
IN
• 10.5-bit ENOB at 100MHz f
IN
• Analog operation: 5V and 3.3V, 3.3V digital
• Total power dissipation: 2.25W
• 3.3V LVDS outputs
• 2.2Vpp input range; 2GHz input BW
• Pin compatible with ADS5440, ADS5444
• I-temp, Mil-temp enhanced plastic product (114 x 114mm2), and space qualified package availability
• Packaging: TQFP-80
Applications
• Test and measurement
• Software-defined radio
• Multi-channel base station receivers
• Base station TX digital predistortion
• Communications instrumentation
The new ADS5463 is the highest performing 12-bit monolithic ADC available with a 500MSPS sample rate while providing 65.5dBFS SNR and 80dBc SFDR through 100MHz f
IN
. Offered in a space-saving 14mm x 14mm 80-pin TQFP package that is pin compatible to the 13-bit, 210MSPS ADS5440 and 250MSPS ADS5444, the new ADC meets the resolution and speed requirements for applications such as communications, amplifier linearization, test and measurement instrumentation, software-defined radio, radar and imaging systems.
ADS5463
A1 TH1
Reference
Timing
ADC
TH2
DAC1
Digital Error Correction
A2
ADC2
TH3
DAC2ADC1
55
A3
ADC3
5
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
ADCs by Architecture
Pipeline ADCs
67
Pipeline ADCs Selection Guide
Sample # of Input Analog Input Supply
Res. Rate Input Voltage Bandwidth DNL INL SNR SFDR Voltage Power
Device (Bits) (MSPS) Channels (V) (MHz) (± LSB) (± LSB) (dB) (dB) (V) (mW) Package(s) Price
*
ADS5547 14 210 1 Diff 2 800 0.5 73.3 85 3, 3.6 1230 QFN-48 $82.50
ADS5546 14 190 1 Diff 2 500 0.5 3 73.2 84 3, 3.6 1130 QFN-48 $72.50 ADS5545 14 170 1 Diff 2 500 0.5 3 73.5 85 3, 3.6 1100 QFN-48 $62.50 ADS5500 14 125 1 Diff 2 750 1.1 5 70.5 82 3, 3.6 780 HTQFP-64 $49.00
ADS6245 14 125 2 Diff 2 500 2.5 5 73.2 83 3, 3.6 1000 QFN-48 $73.50 ADS6445 14 125 4 Diff 2 500 2.5 5 73.2 83 3, 3.6 1680 QFN-64 $132.30
ADS5424 14 105 1 Diff 2.2 570 –0.95, 1.5 1.5 74 93 4.75,5.25 1900 HTQFP-52 $56.00 ADS5541 14 105 1 Diff 2 750 –0.9, 1.1 5 72 85.1 3.0, 3.6 739 HTQFP-64 $41.00
ADS6244 14 105 2 Diff 2 500 2.5 5 73 81 3, 3.6 900 QFN-48 $61.50 ADS6444 14 105 4 Diff 2 500 2.5 5 73 81 3, 3.6 1350 QFN-64 $110.70
ADS5542 14 80 1 Diff 2 750 –0.9, 1.1 5 72.9 88 3.0, 3.6 674 HTQFP-64 $25.00 ADS5423 14 80 1 Diff 2.2 570 –0.95, 1.5 1.5 74 94 4.75,5.25 1850 HTQFP-52 $40.00 ADS5433 14 80 1 Diff 2.2 570 –0.95, 1.5 1.5 74 97.2 4.75,5.25 1850 HTQFP-52 $48.00
ADS6243 14 80 2 Diff 2 500 2 4.5 73.8 87.5 3, 3.6 760 QFN-48 $37.50 ADS6443 14 80 4 Diff 2 500 2 4.5 73.8 87.5 3, 3.6 1180 QFN-64 $71.25
ADS5553 14 65 2 Diff 2.3 750 1 4 74 84 3.0, 3.6 890 HTQFP-80 $30.00 ADS5422 14 62 1 Diff 2 to 4 300 1 72 85 4.75, 5.25 1200 LQFP-64 $30.45 ADS5421 14 40 1 Diff 2 to 4 300 1 75 83 4.75, 5.25 900 LQFP-64 $20.15 ADS850 14 10 1 SE/1 Diff 2 to 4 300 1 5 76 85 4.7, 5.3 250 TQFP-48 $10.50 THS1408 14 8 1 SE/1 Diff 1.5 140 1 5 72 80 3, 3.6 270 HTQFP-48, TQFP-48 $14.85 THS1403 14 3 1 SE/1 Diff 1.5 140 1 5 72 80 3, 3.6 270 HTQFP-48, TQFP-48 $11.05 THS14F03 14 3 1 SE/1 Diff 1.5 140 1 2.5 72 80 3, 3.6 270 TQFP-48 $12.60 THS1401 14 1 1 SE/1 Diff 1.5 140 1 5 72 80 3, 3.6 270 HTQFP-48, TQFP-48 $8.90 THS14F01 14 1 1 SE/1 Diff 1.5 140 1 2.5 72 80 3, 3.6 270 TQFP-48 $9.65 ADS5444 13 250 1 SE/1 Diff 2.2 800 68.7 73 4.75, 5.25 2100 HTQFP-80 $59.00 ADS5440 13 210 1 SE/1 Diff 2.2 800 1 2.2 69 80 4.75, 5.25 2100 HTQFP-80 $42.00
ADS5463 12 500 1 Diff 2.2 2000 1 1.5 65.2 84 4.75, 5.25 2200 HTQFP-80 $125.00 ADS5527 12 210 1 Diff 2 800 0.5 69 81 3, 3.6 1100 QFN-48 $45.00
ADS5525 12 170 1 Diff 2 500 0.5 3 70.5 84 3, 3.6 1100 QFN-48 $35.00 ADS5520 12 125 1 Diff 2 750 0.5 1.5 69.7 83.6 3.0, 3.6 780 HTQFP-64 $27.50
ADS6225 12 125 2 Diff 2 500 2.5 5 70.3 83 3, 3.6 1000 QFN-48 $41.25
ADS6425 12 125 4 Diff 2 500 2.5 5 70.3 83 3, 3.6 1650 QFN-64 $74.25
ADS5521 12 105 1 DIff 2 750 0.5 1.5 70 86 3.0, 3.6 736 HTQFP-64 $23.00
ADS6224 12 105 2 Diff 2 500 2.5 5 70.6 81 3, 3.6 900 QFN-48 $34.50 ADS6424 12 105 4 Diff 2 500 2.5 5 70.6 81 3, 3.6 1350 QFN-64 $62.10
ADS5522 12 80 1 Diff 2 750 0.5 1.5 69.7 82.8 3.0, 3.6 663 HTQFP-64 $16.70 ADS5410 12 80 1 SE/1 Diff 2 1000 1 2 65 76 3, 3.6 360 TQFP-48 $19.00 ADS809 12 80 1 SE/1 Diff 1 to 2 1000 1.7 6 63 67 4.75, 5.25 905 TQFP-48 $24.95
ADS6223 12 80 2 Diff 2 500 2 4.5 70.9 87 3, 3.6 760 QFN-48 $25.05 ADS6423 12 80 4 Diff 2 500 2 4.5 70.9 87 3, 3.6 1180 QFN-64 $47.60
ADS808 12 70 1 SE/1 Diff 1 to 2 1000 1.7 7 64 68 4.75, 5.25 720 TQFP-48 $19.50 ADS5273 12 70 8 Diff 1.5 300 0.99, 1.2 3 71 85 3, 3.6 1003 HTQFP-80 $121.00 ADS5413 12 65 1 Diff 2 1000 1 2 68.5 79 3.0, 3.6 400 HTQFP-48 $14.75 ADS5221 12 65 1 SE/1 Diff 1 to 2 300 1 1.5 70 88 3.0, 3.6 285 TQFP-48 $13.95 ADS5232 12 65 2 Diff 2 300 0.9 2 70.7 86 3, 3.6 340 TQFP-64 $16.00 ADS5242 12 65 4 DIff 1.5 300 0.95, 1 2 71 85 3.0, 3.6 660 HTQFP-64 $30.00 ADS5272 12 65 8 Diff 1.5 300 0.95, 1 2 71.1 85 3, 3.6 984 HTQFP-80 $54.85 ADS807 12 53 1 SE/1 Diff 2 to 3 270 1 4 69 82 4.75, 5.25 335 SSOP-28 $11.30 ADS2807 12 50 2 SE/2 Diff 2 to 3 270 1 5 65 70 4.75, 5.25 720 TQFP-64 $18.05 ADS5271 12 50 8 Diff 1.5 300 0.9 2 70.5 85 3.0, 3.6 927 HTQFP-80 $48.00 ADS5220 12 40 1 SE/1 Diff 1 to 2 300 1 1.5 70 88 3.0, 3.6 195 TQFP-48 $9.85 ADS800 12 40 1 SE/1 Diff 2 65 1 62 61 4.75, 5.25 390 SO-28, TSSOP-28 $30.85
ADS5231 12 40 2 Diff 2 300 0.9 2 70.7 86 3, 3.6 285 TQFP-64 $11.75
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
ADCs by Architecture
Pipeline ADCs
68
Pipeline ADCs Selection Guide (Continued)
Sample # of Input Analog Input Supply
Res. Rate Input Voltage Bandwidth DNL INL SNR SFDR Voltage Power
Device (Bits) (MSPS) Channels (V) (MHz) (± LSB) (± LSB) (dB) (dB) (V) (mW) Package(s) Price
*
ADS5240 12 40 4 Diff 1.5 300 0.9 2 70.5 85 3.0, 3.6 607 HTQFP-64 $20.00 ADS5270 12 40 8 Diff 1.5 300 0.9 2 70.5 85 3.0, 3.6 888 HTQFP-80 $44.00 ADS2806 12 32 2 SE/2 Diff 2 to 3 270 1 4 66 73 4.75, 5.25 430 TQFP-64 $14.10 THS1230 12 30 1 SE/1 Diff 1 to 2 180 1 2.5 67.7 74.6 3, 3.6 168 SOIC-28, TSSOP-28 $10.50 ADS801 12 25 1 SE/1 Diff 1 to 2 65 1 64 61 4.75, 5.25 270 SO-28, SSOP-28 $12.55 ADS805 12 20 1 SE/1 Diff 2 270 0.75 2 68 74 4.75, 5.25 300 SSOP-28 $9.90 THS1215 12 15 1 SE/1 Diff 1 to 2 180 0.9 1.5 68.9 81.7 3, 3.6 148 SOIC-28, SSOP-28 $9.85 ADS802 12 10 1 SE/1 Diff 2 65 1 2.75 66 66 4.75, 5.25 260 SO-28, SSOP-28 $12.60 ADS804 12 10 1 SE/1 Diff 2 270 0.75 2 69 80 4.7, 5.3 180 SSOP-28 $9.20 THS12082 12 8 2 SE/1 Diff 2.5 96 1 1.5 69 71 4.75, 5.25 186 TSSOP-32 $8.40 THS1209 12 8 2 SE/1 Diff 2.5 98 1 1.5 69 71 4.75, 5.25 186 TSSOP-32 $7.90 THS1206 12 6 4 SE/2 Diff 2.5 96 1 1.8 69 71 4.75, 5.25 186 TSSOP-32 $7.80 THS1207 12 6 4 SE/2 Diff 2.5 96 1 1.5 69 71 4.75, 5.25 186 TSSOP-32 $7.25 ADS803 12 5 1 SE/1 Diff 2 270 2 0.75 69 82 4.7, 5.3 115 SSOP-28 $7.40
ADS5510 11 125 1 Diff 2 750 1.1 5 66.8 83 3, 3.6 780 HTQFP-64 $14.20
ADS5411 11 105 1 Diff 2.2 750 0.5 0.5 66.4 90 4.75, 5.25 1900 HTQFP-52 $25.50 ADS5413-11 11 65 1 Diff 2 1000 0.75 1 65 77 3, 3.6 400 HTQFP-48 $14.75 ADS828 10 75 1 SE/1 Diff 2 300 1 3 57 68 4.75, 5.25 340 SSOP-28 $8.70 ADS5102 10 65 1 Diff 1 950 1 2.5 57 71 1.65, 2 160 TQFP-48 $7.10 ADS5277 10 65 8 Diff 1.5 300 0.5 1 61.7 85 3, 3.6 911 HTQFP-80 $32.00 ADS5122 10 65 8 Diff 1 22 1 2.5 59 72 1.65, 2.0 733 BGA-257 $42.85 ADS823 10 60 1 SE/1 Diff 2 300 1 2 60 74 4.75, 5.25 295 SSOP-28 $8.40 ADS826 10 60 1 SE/1 Diff 2 300 1 2 59 73 4.75, 5.25 295 SSOP-28 $8.40 ADS5103 10 40 1 Diff 1 950 0.8 1.5 58 66 1.65, 2 105 TQFP-48 $5.25 ADS821 10 40 1 SE/1 Diff 2 65 1 2 58 62 4.75, 5.25 390 SSOP-28, SO-28 $13.05 ADS822 10 40 1 SE/1 Diff 2 300 1 2 60 66 4.75, 5.25 200 SSOP-28 $5.25 ADS825 10 40 1 SE/1 Diff 2 300 1 2 60 65 4.75, 5.25 200 SSOP-28 $5.25 THS1040 10 40 1 SE/1 Diff 2 900 0.9 1.5 57 70 3, 3.6 100 SOIC-28, TSSOP-28 $5.10 THS1041 10 40 1 SE/1 Diff 2 900 1 1.5 57 70 3, 3.6 103 SOIC-28, TSSOP-28 $5.45 ADS5203 10 40 2 SE/2 Diff 1 300 1 1.5 60.5 73 3, 3.6 240 TQFP-48 $9.65 ADS5204 10 40 2 SE/2 Diff 2 300 1 1.5 60.5 73 3, 3.6 275 TQFP-48 $11.05 ADS5120 10 40 8 Diff 1 300 1 1.5 58 72 1.65, 2 794 BGA-257 $36.15 ADS5121 10 40 8 Diff 1 28 1 1.5 60 74 1.65, 2.0 500 BGA-257 $38.85 THS1030 10 30 1 SE/1 Diff 2 150 1 2 49.4 53 3, 5.5 150 SOIC-28, TSSOP-28 $3.75 THS1031 10 30 1 SE/1 Diff 2 150 1 2 49.3 52.4 3, 5.5 160 SOIC-28, TSSOP-28 $4.10 ADS820 10 20 1 SE/1 Diff 2 65 1 2 60 62 4.75, 5.25 200 SSOP-28, SO-28 $6.75 ADS900 10 20 1 SE/1 Diff 1 to 2 100 1 49 53 2.7, 3.7 54 SSOP-28 $3.55 ADS901 10 20 1 SE/1 Diff 1 to 2 100 1 53 49 2.7, 3.7 49 SSOP-28 $3.40 THS10082 10 8 2 SE/1 Diff 2.5 96 1 1 61 65 4.75, 5.25 186 TSSOP-32 $3.70 THS1009 10 8 2 SE/1 Diff +1.5, +3.5 96 1 1 61 65 4.75, 5.25 186 TSSOP-32 $3.20 THS10064 10 6 4 SE/2 Diff 2.5 96 1 1 61 65 4.75, 5.25 186 TSSOP-32 $4.15 THS1007 10 6 4 SE/2 Diff +1.5, +3.5 96 1 1 61 65 4.75, 5.25 186 TSSOP-32 $3.70 TLV1562 10 2 4 SE/2 Diff 3 120 1.5 1.5 58 70.3 2.7, 5.5 15 SOIC-28, TSSOP-28 $4.15 ADS831 8 80 1 SE/1 Diff 1 or 2 300 1 2 49 65 4.75, 5.25 310 SSOP-20 $3.15 ADS830 8 60 1 SE/1 Diff 1 or 2 300 1 1.5 49.5 65 4.75, 5.25 215 SSOP-20 $2.75 TLC5540 8 40 1 SE 2 75 1 1 44 42 4.75, 5.25 85 SOP-24, TSSOP-24 $1.99 THS0842 8 40 2 SE/2 Diff 1.3 600 2 2.2 42.7 52 3, 3.6 320 TQFP-48 $5.05 TLV5535 8 35 1 SE 1 to 1.6 600 1.3 2.4 46.5 58 3, 3.6 106 TSSOP-28 $2.40 ADS931 8 30 1 SE 1 to 4 100 1 2.5 48 49 2.7, 5.5 154 SSOP-28 $2.20 ADS930 8 30 1 SE/1 Diff 1 100 1 2.5 46 50 2.7, 5.25 168 SSOP-28 $2.30 TLC5510 8 20 1 SE 2 14 0.75 1 46 42 4.75, 5.25 127.5 SOP-24 $1.95 TLC5510A 8 20 1 SE 2 14 0.75 1 46 42 4.75, 5.25 150 SOP-24 $1.95
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
DACs by Architecture
Delta-Sigma (∆Σ) DACs
69
Delta-sigma (∆Σ) DACs are the converse of delta-sigma ADCs with a digital modulator and analog filter. ∆Σ DACs include a serial interface, control registers, modulator, switched capacitor
filter and a clock for the modulator and filter. ∆Σ DACs have high resolution and low power making them ideal for closed-loop control in industrial control applications, high-resolution test and measurement
equipment, remote applications, battery­powered instruments and isolated systems.
Resistor "String" and R-2R DACs consist of three major elements: logic circuitry; some type of resistor network means of switching either a reference voltage or current to the proper input terminals of the network as a function of the digital value of each digital input bit, and a reference voltage.
Technical Information
R-2R DACs—are used to achieve the best
integral linearity performance. In an R-2R DAC, a current is generated by a reference voltage, which flows through the R-2R resistor network based on the digital input, which divides the current by two at each R-2R node. The advantage of a R-2R type
DAC is that it relies on the matching of the R and 2R resistor segments and not the absolute value of the resistors thus allowing trim techniques to be used to adjust the integral linearity and differential linearity.
Voltage Segment DACs (String DACs)—are
simply a string of resistors, each of value R. The code loaded into the DAC register determines at which node on the string the voltage is tapped off to be fed into the output amplifier by closing one of the switches connecting the string to the amplifier. The DAC is monotonic, because it is a string of resistors. In higher resolution 12- and 16-bit DACs, two resistor strings are used to minimize the number of switches in
the design. In a two-resistor string configuration, the most significant bits drive a decoder tree, which selects the voltages from two adjacent taps of the first resistor string and applies them to the inputs of two buffers. These buffers then force these voltages across the endpoints of the second resistor string. The least significant data bits drive a second decoder tree, which selects the voltage at one of the switch outputs and directs it to the output buffer.
Voltage segment DAC.
Segmented R-2R DAC.
High-Accuracy and General Purpose DACs
∆Σ
DACs Selection Guide
Res. Settling Time Number of Output Output Linearity Monotonicity Power
Device (Bits) (ms) DACs Interface (V) V
REF
(%) (Bits) (mW) Package Price
*
DAC1220 20 15 1 Serial, SPI 5 Ext 0.0015 20 2.5 SSOP-16 $6.33 DAC1221 16 2 1 Serial, SPI 2.5 Ext 0.0015 16 1.2 SSOP-16 $5.01
*
Suggested resale price in U.S. dollars in quantities of 1,000.
REFADJ REFOUT
+10V Internal
Reference
R
2R2R 2R 2R 2R 2R 2R 2R 2R
REFIN
Buffer
VREF
R/4
R/2R/2 R/4
R/4
VREF AGND
ROFFSET
RFB2
RFB1
SJ
VOUT
VREF
DATA
CLOCK/WE
Output
DAC
Latch
Control
and
Interface
CS
Buffer
Buffer
VOUT
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
DACs by Architecture
High-Accuracy and General-Purpose DACs
70
AVSS
RSTSEL
RST
CS
SCLK
SDI
LDAC
AVDD DVDD
VOUT
AGND
DGND
VREFH–S
VREFH–F
VREFL–S
Control
Logic
Interface Data
Register
DAC Latch
DAC
Serial
Interface
Highest Accuracy and Industrial Bipolar Output DAC
DAC8871
Get datasheets at: www.ti.com/sc/device/DAC8871
DAC8871 functional block diagram.
Key Features
• Resolution: 16-bit
• Output voltage: ±18V
• High accuracy: ±1LSB INL (max)
• Low noise: 10nV/ Hz
• Settling time: 1µs to 1LSB
• Fast SPI interface, up to 50MHz
• Very low power
• Packaging: TSSOP-16
Applications
• Portable equipment
• ATE
• Industrial process control
• Data acquisition systems
• Optical networking
The DAC8871 is a single, serial-input, voltage-output DAC operating from up to a dual ±18V supply. The output is unbuffered, which reduces the power consumption and the error introduced by the output buffer amplifier. It features a standard high-speed 3V or 5V SPI serial interface with clock speeds up to 50MHz. For optimum performance, a set of Kelvin connections to the external reference is provided.
DAC8830 functional block diagram.
Key Features
• Resolution: 16-bit
• Single-supply operation: 2.7V to 5.5V
• Very low power: 15µW for 3V power
• High accuracy INL: 1LSB (max)
• Low glitch: 8nV-s
• Low noise: 10nV/ Hz
• Fast settling: 1µs
• Fast SPI interface, up to 50MHz
• Reset to zero (DAC8832 is reset to mid-scale)
• Schmitt-trigger inputs for direct optocoupler interface
• Packaging:
SOIC-8 (DAC8830)
SOIC-14, QFN-14
Applications
• Portable equipment
• Automatic test equipment
• Industrial process control
• Data acquisition systems
• Optical networking
The DAC8830 and DAC8831 are single, 16-bit, serial-input, voltage-output DACs operating from a single 3V to 5V power supply. These converters provide excellent linearity (1LSB INL), low glitch, low noise, and fast settling time (1µs to 1/2 LSB of full-scale output) over the specified temperature range of –40°C to +85°C. The output is unbuffered, which reduces the power consumption and the error introduced by the output buffer amplifier.
Highest Accuracy DACs
DAC8830, DAC8831, DAC8832
Get samples, datasheets and app reports at: www.ti.com/sc/device/PARTnumber (Replace PARTnumber with DAC8830, DAC8831 or DAC8832)
DAC8830
DAC8871
VDD
VREF
CS
SCLK
SDI
Serial
DGND
Interface
Input
Register
DAC
DAC Latch
VOUT
AGND
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
DACs by Architecture
High-Accuracy and General-Purpose DACs
71
Power Down
Control Logic
Resistor
Network
Register
Control
Buffer
Control
Data
Buffer A
Data
Buffer D
24-Bit
Serial
Parallel Shift
Register
SYNC
SCLK
DIN
1B
B
DAC
Register A
DAC A
DAC D
DAC
Register D
VOUTA
VOUT
VOUT
VOUT
A0 A1 LDAC ENABLE VREFL
VREFHIOVDDAVD D
General-Purpose DACs
DAC855x, DAC856x Families
Get samples, datasheets and evaluation modules at:
www.ti.com/sc/device/PARTnumber (Replace PARTnumber with DAC8550, DAC8551, DAC8552, DAC8554, DAC8555 or DAC8560)
DAC8554 functional block diagram.
Key Features
• Relative accuracy: ±4LSB INL (typ)
• Glitch energy: 0.15nV-s
• Power supply: +2.7V to +5.5V
• microPower operation: 850µA at 5V
• Settling time: 10µs to ±0.003% FSR
• Ultra-low AC crosstalk: –100dB (typ)
• Power-on reset to zero-scale
• 16-channel broadcast capability (DAC8554)
• Simultaneous or sequential output update and power-down
• Packaging: TSSOP-16
Applications
• Portable instrumentation
• Closed-loop servo control
• Process control
• Data acquisition systems
• Programmable attenuation
• PC peripherals
The DAC8554 is a 16-bit, quad-channel, voltage output DAC offering low-power operation and a flexible 3-wire serial interface capable of operating at clock frequencies up to 50MHz for IOV
DD
= 5V. On-chip precision output amplifiers allow rail-to-rail swing over the supply range of
2.7V to 5.5V. A per channel power-down feature, accessed over the serial interface, reduces current consumption to 200µA per channel at 5V. Single, dual and quad versions are available.
The DAC8560 is a 16-bit, single-channel, DAC with an internal 2ppm/°C reference.
Highest Accuracy and Industrial Bipolar DACs
DAC88xx and DAC78xx Multiplying Family
Get samples, datasheets and evaluation modules at: www.ti.com/sc/device/PARTnumber (Replace PARTnumber with DAC8801, DAC8802, DAC8803, DAC8805,
DAC8806, DAC8811, DAC8812, DAC8814, DAC8820, DAC8822, DAC7811, DAC7821 or DAC7822)
Key Features
DAC8814 functional block diagram.
• Relative accuracy: 1LSB (max)
• ±2mA full-scale current with V
REF
= ±10V
• Settling time: 0.5µs
• Midscale or zero-scale reset
• Four separate 4-quadrant (±10V) multiplying reference inputs (DAC8814)
• Reference bandwidth: 10MHz
• Reference dynamics: –105dB THD
• Double-buffered input registers
• Internal power-on reset
• Packaging: MSOP-8, SON-8, SSOP-28, TSSOP-16
Applications
• Automatic test equipment
• Instrumentation
• Digitally controlled calibration
• Industrial control PLCs
The DAC88xx and DAC78xx families of current output DACs are designed to operate from a single +2.7V to 5V supply and are available in single, dual and quad versions. A double-buffered serial data interface offers high-speed, 3-wire, SPI and microcontroller-compatible inputs using serial data in, clock and a chip-select. Parallel versions are available.
DAC8554
DAC8814
VREFA B C D
D0 D1
SDO
SDI
CLK
CS
D2 D3 D4 D5 D6 D7 D8 D9
D10
16
D11 D12 D13 D14 D15
A0 A1
EN
DAC A
B C
D
2:4
Decode
DGND RS MSB LDAC
Input
Register
Input
Register
Input
Register
Input
Register
Power-On
Reset
DAC A
Register
DAC B
Register
DAC C
Register
DAC D
Register
RFBA IOUTA
DAC A
RR
RR
RR
RR
DAC B
DAC C
DAC D
AGNDA
RFBB IOUTB AGNDB
RFBC IOUTC AGNDC
RFBD IOUTD AGNDD
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
DACs by Architecture
High-Accuracy and General-Purpose DACs
72
High-Accuracy and General-Purpose DACs Selection Guide
Settling Number of Integral Power
Res. Time DAC Output Non- Monotonic (mW)
Device (Bits) (µs) Channels Interface (V) V
REF
Linearity (%)
(Bits) Architecture (typ) Package(s) Price
*
Highest Accuracy, Low-Power DACs
DAC8811 16 0.5 1 Serial, SPI I
OUT
(±15V) Ext 0.0015 16 R-2R 0.027 MSOP-8, SON-8 $7.15
DAC8820 16 0.5 1 P16 I
OUT
(±15V) Ext 0.0015 16 R-2R 0.027 SSOP-28 $8.50
DAC8812 16 0.5 2 Serial, SPI I
OUT
(±15V) Ext 0.0015 16 R-2R 0.027 TSSOP-16 $8.40
DAC8822 16 0.5 2 P16 I
OUT
(±18V) Ext 0.0015 16 R-2R 0.027 TSSOP-18 $8.65
DAC8830 16 1 1 Serial, SPI +V
REF
Ext 0.0015 16 R-2R 0.015 SOIC-8 $7.95
DAC8831 16 1 1 Serial, SPI +V
REF
, ±V
REF
Ext 0.0015 16 R-2R 0.015 SOIC-14, QFN-14 $7.95
DAC8832 16 1 1 Serial, SPI +V
REF
, ±V
REF
Ext 0.0015 16 R-2R 0.015 QFN-14 $7.95
DAC8814 16 1 4 Serial, SPI I
OUT
(±15V) Ext 0.0015 16 R-2R 0.027 SSOP-28 $16.95
DAC8881 16 2 1 Serial, SPI +5 Ext 0.0015 16 R-2R 60 QFN-20 $8.00
DAC8801 14 0.5 1 Serial, SPI I
OUT
(±15V) Ext 0.0061 14 R-2R 0.027 MSOP-8, SON-8 $4.60
DAC8802 14 0.5 2 Serial, SPI I
OUT
(±15V) Ext 0.0061 14 R-2R 0.027 TSSOP-16 $6.10
DAC8803 14 1 4 Serial, SPI I
OUT
(±15V) Ext 0.0061 14 R-2R 0.027 SSOP-28 $12.65
DAC8805 14 0.5 2 P14 I
OUT
(±18V) Ext 0.0061 14 R-2R 0.0027 TSSOP-38 $6.15
DAC8806 14 0.5 1 P14 I
OUT
(±15V) Ext 0.0061 14 R-2R 0.027 SSOP-28 $5.50
Industrial, Bipolar Output DACs
DAC8811 16 0.5 1 Serial, SPI I
OUT
(±15V) Ext 0.0015 16 R-2R 0.027 MSOP-8, SON-8 $7.15
DAC8820 16 0.5 1 P16 I
OUT
(±15V) Ext 0.0015 16 R-2R 0.027 SSOP-28 $8.50
DAC8812 16 0.5 2 Serial, SPI I
OUT
(±15V) Ext 0.0015 16 R-2R 0.027 TSSOP-16 $8.40
DAC8822 16 0.5 2 P16 I
OUT
(±18V) Ext 0.0015 16 R-2R 0.027 TSSOP-38 $11.70
DAC8580 16 0.65 1 Serial, SPI ±V
REF
Ext 0.096 16 R-String 200 TSSOP-16 $3.00
DAC8581 16 0.65 1 Serial, SPI ±V
REF
Ext 0.096 16 R-String 200 TSSOP-16 $3.00
DAC8814 16 1 4 Serial, SPI I
OUT
(±15V) Ext 0.0015 16 R-2R 0.027 SSOP-28 $16.95
DAC8871 16 5 1 Serial, SPI ±10 Ext 0.0015 16 R-2R 0.015 SOIC-14 $8.00
DAC7731 16 5 1 Serial, SPI +10, ±10 Int/Ext 0.0015 16 R-2R 100 SSOP-24 $8.20 DAC7742 16 5 1 P16 +10, ±10 Int/Ext 0.0015 16 R-2R 100 LQFP-48 $8.70 DAC7741 16 5 1 P16 +10, ±10 Int/Ext 0.0015 16 R-2R 100 LQFP-48 $8.30 DAC712 16 10 1 P16 ±10 Int 0.003 15 R-2R 525 SOIC-28, PDIP-28 $14.50 DAC714 16 10 1 Serial, SPI ±10 Int 0.0015 16 R-2R 525 SOIC-16 $14.50 DAC7734 16 10 4 Serial, SPI +V
REF
, ±V
REF
Ext 0.0015 16 R-2R 50 SSOP-48 $31.45
DAC7744 16 10 4 P16 +V
REF
, ±V
REF
Ext 0.0015 16 R-2R 50 SSOP-48 $31.45
DAC7641 16 10 1 P16 +V
REF
, ±V
REF
Ext 0.0045 15 R-2R 1.8 TQFP-32 $6.30
DAC7631 16 10 1 Serial, SPI +V
REF
, ±V
REF
Ext 0.0045 15 R-2R 1.8 SSOP-20 $5.85
DAC7642 16 10 2 P16 +V
REF
, ±V
REF
Ext 0.0045 15 R-2R 2.5 LQFP-32 $10.55
DAC7643 16 10 2 P16 +V
REF
, ±V
REF
Ext 0.0045 15 R-2R 2.5 LQFP-32 $10.55
DAC7632 16 10 2 Serial, SPI +V
REF
, ±V
REF
Ext 0.0045 15 R-2R 2.5 LQFP-32 $10.45
DAC7634 16 10 4 Serial, SPI +V
REF
, ±V
REF
Ext 0.0045 15 R-2R 7.5 SSOP-48 $19.95
DAC7644 16 10 4 P16 +V
REF
, ±V
REF
Ext 0.0045 15 R-2R 7.5 SSOP-48 $19.95 DAC7654 16 12 4 Serial, SPI ±2.5 Int 0.0045 16 R-2R 18 LQFP-64 $21.80 DAC7664 16 12 4 P16 ±2.5 Int 0.0045 16 R-2R 18 LQFP-64 $20.75
DAC8801 14 0.5 1 Serial, SPI I
OUT
(±15V) Ext 0.0061 14 R-2R 0.027 MSOP-8, SON-8 $4.60
DAC8802 14 0.5 2 Serial, SPI I
OUT
(±15V) Ext 0.0061 14 R-2R 0.027 TSSOP-16 $6.10
DAC8803 14 1 4 Serial, SPI I
OUT
(±15V) Ext 0.0061 14 R-2R 0.027 SSOP-28 $12.65
DAC8805 14 0.5 2 P14 I
OUT
(±18V) Ext 0.0061 14 R-2R 0.027 TSSOP-38 $6.15
DAC8806 14 0.5 1 P14 I
OUT
(±15V) Ext 0.0061 14 R-2R 0.027 SSOP-28 $5.50
DAC7811 12 0.2 1 Serial, SPI I
OUT
(±15V) Ext 0.012 12 R-2R 0.025 MSOP-10, SON-10 $2.55
DAC7821 12 0.2 1 P12 I
OUT
(±15V) Ext 0.012 12 R-2R 0.027 QFN-20, TSSOP-20 $2.60
DAC7822 12 0.2 2 P12 I
OUT
(±15V) Ext 0.012 12 R-2R 0.027 QFN-40 $3.80
DAC7800 12 0.8 2 Serial, SPI I
OUT
(±10V) Ext 0.012 12 R-2R 1 PDIP-16, SOIC-16 $13.55
DAC7801 12 0.8 2 P(8+4) I
OUT
(±10V) Ext 0.012 12 R-2R 1 PDIP-24, SOIC-24 $17.95
DAC7802 12 0.8 2 P12 I
OUT
(±10V) Ext 0.012 12 R-2R 1 PDIP-24, SOIC-24 $14.00
DAC7541 12 1 1 P12 I
OUT
(±10V) Ext 0.012 12 R-2R 30 PDIP-18, SOP-18 $6.70
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
DACs by Architecture
High-Accuracy and General-Purpose DACs
73
High-Accuracy and General-Purpose DACs Selection Guide (Continued)
Settling Number of Integral Power
Res. Time DAC Output Non- Monotonic (mW)
Device (Bits) (µs) Channels Interface (V) V
REF
Linearity (%)
(Bits) Architecture (typ) Package(s) Price
*
Industrial Bipolar Output DACs (continued)
DAC8043 12 1 1 Serial, SPI I
OUT
(±10V) Ext 0.012 12 R-2R 2.5 SOIC-8 $3.60
DAC7545 12 2 1 P12 I
OUT
(±10V) Ext 0.012 12 R-2R 30 SOIC-20 $5.25
DAC811 12 4 1 P12 +10, ±5, 10 Int 0.006 12 R-2R 625 CDIP SB-28, PDIP-28, $11.00
SOIC-28 DAC813 12 4 1 P12 +10, ±5, 10 Int/Ext 0.006 12 R-2R 270 PDIP-28, SOIC-28 $12.60 DAC7613 12 10 1 P12 +V
REF
, ±V
REF
Ext 0.024 12 R-2R 1.8 SSOP-24 $2.50
DAC7614 12 10 4 Serial, SPI +V
REF
, ±V
REF
Ext 0.024 12 R-2R 15
PDIP-16, SOIC-16, SSOP-20
$6.70
DAC7615 12 10 4 Serial, SPI +V
REF
, ±V
REF
Ext 0.024 12 R-2R 15
PDIP-16, SOIC-16, SSOP-20
$6.70
DAC7616 12 10 4 Serial, SPI +V
REF
, ±V
REF
Ext 0.024 12 R-2R 2.4 SOIC-16, SSOP-20 $5.40
DAC7617 12 10 4 Serial, SPI +V
REF
, ±V
REF
Ext 0.024 12 R-2R 2.4 SOIC-16, SSOP-20 $5.40
DAC7624 12 10 4 P12 +V
REF
, ±V
REF
Ext 0.024 12 R-2R 15 PDIP-28, SOIC-28 $10.25
DAC7625 12 10 4 P12 +V
REF
, ±V
REF
Ext 0.024 12 R-2R 15 PDIP-28, SOIC-28 $10.25
DAC7714 12 10 4 Serial, SPI +V
REF
, ±V
REF
Ext 0.024 12 R-2R 45 SOIC-16 $11.45
DAC7715 12 10 4 Serial, SPI +V
REF
, ±V
REF
Ext 0.024 12 R-2R 45 SOIC-16 $11.45
DAC7724 12 10 4 P12 +V
REF
, ±V
REF
Ext 0.024 12 R-2R 45 PLCC-28, SOIC-28 $11.85
DAC7725 12 10 4 P12 +V
REF
, ±V
REF
Ext 0.024 12 R-2R 45 PLCC-28, SOIC-28 $11.85
TLC7524 8 0.1 1 P8 I
OUT
(±10V) Ext 0.2 8 R-2R 5
PDIP-16, PLCC-20,
$1.45
SOIC-16,
TSSOP-16
TLC7528 8 0.1 2 P8 I
OUT
(±10V) Ext 0.2 8 R-2R 7.5 PDIP-20, PLCC-20, $1.55
SOIC-20, TSSOP-20
TLC7628 8 0.1 2 P8 I
OUT
(±10V) Ext 0.2 8 R-2R 20 SOIC-20, PDIP-20 $1.45
TLC7225 8 5 4 P8 +V
REF
Ext 0.4 8 R-2R 75 SOIC-24 $2.35
TLC7226 8 5 4 P8 +V
REF
Ext 0.4 8 R-2R 90 PDIP-20, SOIC-20 $2.15
General-Purpose DACs
DAC8550 16 10 1 Serial, SPI +V
REF
Ext 0.012 16 R-String 1 MSOP-8 $2.65
DAC8551 16 10 1 Serial, SPI +V
REF
Ext 0.012 16 R-String 1 VSSOP-8, QFN 3 x 3 $2.65
DAC8560 16 10 1 Serial, SPI +V
REF
(+2.5) Int/Ext 0.012 16 R-String 2.6 MSOP-8 $3.50
DAC8564 16 10 4 Serial, SPI +V
REF
(+2.5) Int/Ext 0.012 16 R-String 5 MSOP-8 $10.45
DAC8565 16 10 4 Serial, SPI +V
REF
(+2.5) Int/Ext 0.012 16 R-String 5 MSOP-8 $10.45
DAC8501 16 10 1 Serial, SPI +V
REF
/MDAC Ext 0.0987 16 R-String 0.72 MSOP-8 $3.00
DAC8531 16 10 1 Serial, SPI +V
REF
Ext 0.0987 16 R-String 0.72 MSOP-8, SON-8 $3.00
DAC8541 16 10 1 P16 +V
REF
Ext 0.096 16 R-String 0.72 TQFP-32 $3.00
DAC8571 16 10 1 Serial, I2C+V
REF
Ext 0.0987 16 R-String 0.42 MSOP-8 $2.95
DAC8552 16 10 2 Serial, SPI +V
REF
Ext 0.012 16 R-String 2 MSOP-8 $5.45
DAC8532 16 10 2 Serial, SPI +V
REF
Ext 0.0987 16 R-String 1.35 MSOP-8 $5.35
DAC8554 16 10 4 Serial, SPI +V
REF
Ext 0.012 16 R-String 4 TSSOP-16 $10.40
DAC8555 16 10 4 Serial, SPI +V
REF
Ext 0.012 16 R-String 4 TSSOP-16 $10.40
DAC8544 16 10 4 P16 +V
REF
Ext 0.098 16 R-String 2 TQFP-48 $9.75
DAC8534 16 10 4 Serial, SPI +V
REF
Ext 0.0987 16 R-String 2.7 TSSOP-16 $8.75
DAC8574 16 10 4 Serial, I2C+V
REF
Ext 0.0987 16 R-String 2.7 TSSOP-16 $10.25 DAC715 16 10 1 P16 +10 Int 0.003 16 R-2R 525 PDIP-28, SOIC-28 $15.85 DAC716 16 10 1 Serial, SPI +10 Int 0.003 16 R-2R 525 PDIP-16, SOIC-16 $15.85 TLV5613 12 1 1 P8 +V
REF
Ext 0.096 12 R-String 1.2 SOIC-20, TSSOP-20 $2.60 TLV5619 12 1 1 P12 +V
REF
Ext 0.096 12 R-String 4.3 SOIC-20, TSSOP-20 $2.60 TLV5633 12 1 1 P8 +V
REF
(+2, 4) Int/Ext 0.072 12 R-String 2.7 SOIC-20, TSSOP-20 $4.70
TLV5636 12 1 1 Serial, SPI +V
REF
(+2, 4) Int/Ext 0.096 12 R-String 4.5 SOIC-8, VSSOP-8 $3.65
TLV5639 12 1 1 P12 +V
REF
(+2, 4) Int/Ext 0.072 12 R-String 2.7 SOIC-20, TSSOP-20 $3.45
TLV5638 12 1 2 Serial, SPI +V
REF
(+2, 4) Int/Ext 0.096 12 R-String 4.5
SOIC-8, CDIP-8, LCCC-20
$3.25
TLV5610 12 1 8 Serial, SPI +V
REF
Ext 0.144 12 R-String 18 SOIC-20, TSSOP-20 $8.50 TLV5630 12 1 8 Serial, SPI +V
REF
Int/Ext 0.144 12 R-String 18 SOIC-20, TSSOP-20 $8.85
TLV5618A 12 2.5 2 Serial, SPI +V
REF
Ext 0.096 12 R-String 1.8 CDIP-8, PDIP-8, $4.75
SOIC-8, LCCC-20
TLV5616 12 3 1 Serial, SPI +V
REF
Ext 0.096 12 R-String 0.9
VSSOP-8, PDIP-8, SOIC-8
$2.60
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
DACs by Architecture
High-Accuracy and General-Purpose DACs
74
High-Accuracy and General-Purpose DACs Selection Guide (Continued)
Settling Number of Integral Power
Res. Time DAC Output Non- Monotonic (mW)
Device (Bits) (µs) Channels Interface (V) V
REF
Linearity (%)
(Bits) Architecture (typ) Package(s) Price
*
General-Purpose DACs (continued)
TLV5614 12 3 4 Serial, SPI +V
REF
Ext 0.096 12 R-String 3.6 SOIC-16, TSSOP-16 $7.45
DAC7551 12 5 1 Serial, SPI +V
REF
Ext 0.024 12 R-String 0.27 SON-12 $1.40
DAC7552 12 5 2 Serial, SPI +V
REF
Ext 0.024 12 R-String 0.675 QFN-16 $2.35
DAC7553 12 5 2 Serial, SPI +V
REF
Ext 0.024 12 R-String 0.675 QFN-16 $2.35
DAC7554 12 5 4 Serial, SPI +V
REF
Ext 0.024 12 R-String 1.5 MSOP-10 $4.80
DAC7558 12 5 8 Serial, SPI +V
REF
Ext 0.024 12 String 2.7 QFN-32 $7.50 DAC7611 12 7 1 Serial, SPI +4.096 Int 0.012 12 R-2R 2.5 PDIP-8, SOIC-8 $2.55 DAC7621 12 7 1 P12 +4.096 Int 0.012 12 R-2R 2.5 SSOP-20 $2.75 DAC7612 12 7 2 Serial, SPI +4.096 Int 0.012 12 R-2R 3.5 SOIC-8 $3.10 DAC7512 12 10 1 Serial, SPI +V
DD
Ext 0.192 12 R-String 0.34 MSOP-8, SOT23-6 $1.45 DAC7513 12 10 1 Serial, SPI +V
REF
Ext 0.192 12 R-String 0.3 MSOP-8, SOT23-8 $1.65
DAC7571 12 10 1 Serial, I2C+V
REF
Ext 0.192 12 R-String 0.86 SOT23-6 $1.55
DAC7573 12 10 4 Serial, I2C+V
REF
Ext 0.192 12 R-String 1.8 TSSOP-16 $6.15
DAC7574 12 10 4 Serial, I2C+V
REF
Ext 0.192 12 R-String 1.8 MSOP-10 $6.15 TLV5637 10 0.8 2 Serial, SPI +V
REF
(+2, 4) Int/Ext 0.098 10 R-String 4.2 SOIC-8 $3.20
TLV5608 10 1 8 Serial, SPI +V
REF
Ext 0.59 10 R-String 18 SOIC-20, TSSOP-20 $4.90 TLV5631 10 1 8 Serial, SPI +V
REF
Int/Ext 0.196 10 R-String 18 SOIC-20, TSSOP-20 $5.60
TLV5617A 10 2.5 2 Serial, SPI +V
REF
Ext 0.098 10 R-String 1.8 SOIC-8 $2.25 TLV5606 10 3 1 Serial, SPI +V
REF
Ext 0.147 10 R-String 0.9 SOIC-8, MSOP-8 $1.30 TLV5604 10 3 4 Serial, SPI +V
REF
Ext 0.05 10 R-String 3 SOIC-16, TSSOP-16 $3.70
DAC6571 10 9 1 Serial, I2C+VDDExt 0.196 10 R-String 0.5 SOT23-6 $1.40 DAC6573 10 9 4 Serial, I2C+V
REF
Ext 0.196 10 R-String 1.5 TSSOP-16 $3.05
DAC6574 10 9 4 Serial, I2C+V
REF
Ext 0.196 10 R-String 1.5 MSOP-10 $3.05 TLC5615 10 12.5 1 Serial, SPI +V
REF
Ext 0.098 10 R-String 0.75 PDIP-8, SOIC-8 $1.90 TLV5626 8 0.8 2 Serial, SPI +V
REF
(+2, 4) Int/Ext 0.391 8 R-String 4.2 SOIC-8 $1.90
TLV5624 8 1 1 Serial, SPI +V
REF
(+2, 4) Int/Ext 0.196 8 R-String 5 SOIC-8, MSOP-8 $1.60
TLV5629 8 1 8 Serial, SPI +V
REF
Ext 0.391 8 R-String 18 SOIC-20, TSSOP-20 $3.15 TLV5632 8 1 8 Serial, SPI +V
REF
(+2, 4) Int/Ext 0.391 8 R-String 18 SOIC-20, TSSOP-20 $3.35
TLV5627 8 2.5 4 Serial, SPI +V
REF
Ext 0.196 8 R-String 3 SOIC-16, TSSOP-16 $2.05 TLV5623 8 3 1 Serial, SPI +V
REF
Ext 0.196 8 R-String 2.1 SOIC-8, MSOP-8 $0.99 TLV5625 8 3 2 Serial, SPI +V
REF
Ext 0.196 8 R-String 2.4 SOIC-8 $1.70
DAC5571 8 8 1 Serial, I2C+VDDInt 0.196 8 R-String 0.5 SOT23-6 $0.90 DAC5573 8 8 4 Serial, I2C+V
REF
Ext 0.196 8 R-String 1.5 TSSOP-16 $2.55
DAC5574 8 8 4 Serial, I2C+V
REF
Ext 0.196 8 R-String 1.5 MSOP-10 $2.55 TLC5620 8 10 4 Serial, SPI +V
REF
Ext 0.391 8 R-String 8 PDIP-14, SOIC-14 $1.75 TLV5620 8 10 4 Serial, SPI +V
REF
Ext 0.391 8 R-2R 6 PDIP-14, SOIC-14 $1.00 TLV5621 8 10 4 Serial, SPI +V
REF
Ext 0.391 8 R-2R 3.6 SOIC-14 $1.65 TLC5628 8 10 8 Serial, SPI +V
REF
Ext 0.391 8 R-String 15 PDIP-16, SOIC-16 $2.45 TLV5628 8 10 8 Serial, SPI +V
REF
Ext 0.391 8 R-String 12 PDIP-16, SOIC-16 $2.20
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Settling
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
DACs by Architecture
Current Steering DACs
75
Opt. 2x – 32x
Clock Multiplier PLL
Clock Generation
16
8 Sample
Input FIFO & Demux
x2
Optional 4c
Interpolation FIR
x2
Optional 2c
Interpolation FIR
Control
16
x2
x2
Optional Fs/4 Mixer
16-bit
DAC
16-bit
DAC
1.2V
Reference
DACCLK
DACCLK
DCCLP
DCCLB
D15P
D15N
DOP
DON
SYNCN
SYNCP
IOUTA1
IOUTA2
IOUTB1
IOUTB2
SDIO
SDO
SDENB
SCLK
RESETB
16-Bit, 1GSPS Dual DAC
DAC5682Z
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/DAC5682Z
DAC5682Z functional block diagram.
Key Features
• 16-bit LVDS input data bus
• 8 sample input FIFO
• Interleaved IQ data for dual DAC mode
• Superior ACLR/ACPR performance
• 2x-32x clock multiplying PLL
• 2x or 4x selectable interpolation filters
• Configurable low pass/high pass option
• Fs/4 mixer
• Scalable differential outputs: 2 to 20mA
• Package 64-pin QFN (9x9)
Applications
• Cellular base stations
• Broadband wireless access
• WiMAX / 802.16
• Fixed wireless backhaul
• Cable modem termination systems
• Test equipment
The DAC5682Z is designed to enable the conversion of wide bandwidth signals from digital to analog. The LVDS interface enables the input of high data rates while controlling EMI emissions and reducing footprint size of the device. Several configurable features the device also save cost, such as the on-board multiplying clock which eliminates the use of expensive off-chip clocking. In addition, the low-pass/high-pass interpolation filters and digital mixer options enables system design flexibility.
Modern high-speed DACs, fabricated on submicron CMOS or BiCMOS processes, have reached new performance levels with update rates of 500MSPS and resolutions of 14- or even 16-bits. In order to realize such high update rates and resolutions, the DACs employ a current-steering architecture with segmented current sources. The core element within the monolithic DAC is the current source array designed to deliver the full-scale output current, typically 20mA. An internal decoder addresses the differential current switches each time the DAC is updated. Steering the currents from all current sources to either of the differential
outputs forms a corresponding signal output current. Differential signaling is used to improve the dynamic performance while reducing the output voltage swing that is developed across the load resistors. Ideally, this signal voltage amplitude should be as small as possible to maintain optimum linearity of the DAC. The upper limit of this signal voltage, and consequently the load resistance, is defined by the output voltage compliance specification.
The segmented current-steering architecture provides a significant reduction in circuit complexity and consequently in reduced glitch energy. This translates into an overall
improvement of the DAC’s linearity and ac performance. As new system architectures require the synthesis of output frequencies in the 100s of MHz range, an approach often referred to as “direct IF” achieves high update rates, while maintaining excellent dynamic performance.
DAC5682Z
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
DACs by Architecture
Current Steering DACs
76
Low-Noise, 16-Bit, 500MSPS Dual DAC
DAC5687
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/DAC5687
Key Features
• Data rate: 500MSPS
• On-chip PLL/VCO clock multiplier
• Full I/Q compensation including offset, gain and phase
• Flexible input options:
FIFO with latch on external or
internal clock
Even/odd multiplexed input
Single-port demultiplexed input
• 1.8V or 3.3V I/O voltage
• High performance
SNR = 75dBFS at 25MHz, 500MSPS
IMD3= 81dBc at 25MHz, 500MSPS
• Single supply: 3.3V
Applications
• Cellular base transceiver stations
• Transmit channels:
CDMA: WCDMA, CDMA2000®,
IS-95 standards
TDMA: GSM, IS-136, EDGE/
UWC-136 standards
• Fixed wireless transmitters
• Cable modem termination systems
The DAC5687 is a dual-channel, 16-bit, high-speed DAC with integrated 2x, 4x and 8x interpolation filters, a complex numerical control oscillator (NCO), onboard clock multiplier, I/Q compensation and on-chip voltage reference. The DAC5687 is pin compatible with the DAC5686, requiring only changes in register settings for most applications, and offers additional features and superior linearity, noise, crosstalk and PLL phase noise performance.
DAC5687 functional block diagram.
Current Steering DACs Selection Guide
Res. Supply Update Rate Settling Time Number Power DNL INL
Device (Bits) (V) (MSPS) (ns) of DACs (mW) (typ) (±LSB) (max) (±LSB) (max) Package(s) Price
*
DAC5687 16 1.8/3.3 500 10.4 2 700 4 4 HTQFP-100 $22.50
DAC5686 16 1.8/3.3 500 12 2 400 9 12 HTQFP-100 $19.75 DAC904 14 3.0 to 5.0 165 30 1 170 1.75 2.5 SOP-28, TSSOP-28 $6.25
DAC5672 14 3.0 to 3.6 200 20 2 330 3 4 TQFP-48 $13.25
DAC2904 14 3.3 to 5.0 125 30 2 310 4 5 TQFP-48 $20.19 DAC5675 14 3 400 5 1 820 2 4 HTQFP-48 $29.45 DAC902 12 3.0 to 5.0 165 30 1 170 1.75 2.5 SOP-28, TSSOP-28 $6.25 THS5661A 12 3.0 to 5.0 125 35 1 175 2.0 4 SOP-28, TSSOP-28 $6.25
DAC5662 12 3.0 to 3.6 200 20 2 330 2 2 TQFP-48 $10.70
DAC2902 12 3.3 to 5.5 125 30 2 310 2.5 3 TQFP-48 $15.41 DAC2932 12 2.7 to 3.3 40 25 2 29 0.5 2 TQFP-48 $7.95 DAC5674 12 1.8/3.3 400 20 1 420 2 3.5 HTQFP-48 $15.00 DAC900 10 3.0 to 5.0 165 30 1 170 0.5 1 SOP-28, TSSOP-28 $4.25 THS5651A 10 3.0 to 5.0 125 35 1 175 0.5 1 SOP-28, TSSOP-28 $4.25 DAC2900 10 3.3 to 5.5 125 30 2 310 1 1 TQFP-48 $6.00
DAC5652 10 3.0 to 3.6 275 20 2 290 1 0.5 TQFP-48 $7.60
DAC908 8 3.0 to 5.0 165 30 1 170 0.5 0.5 SOP-28, TSSOP-28 $2.90 THS5641A 8 3.0 to 5.0 100 35 1 100 0.5 1.0 SOP-28, TSSOP-28 $2.90 TLC5602 8 4.75 to 5.25 30 30 1 80 0.5 0.5 SOP-20 $1.55
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
DAC5687
CLK2
CLK2C
CLK1
CLK1C
DA(15:0)
DB(15:0)
Input Formatting
Serial
Interface
Clock Divider
and
Optional PLL/VCO
FIR1/2
x2/x4
x2/x4
x2/x4
NCO
Fine Mixer
FIR3
x2
Phase Correction
x2
x2
2-8X
FData
FIR4
x
sin(x)
x
Fs/2 or Fs/4 Mixer
sin(x)
A
Offset
B
Offset
1.2 V
Reference
A Gain
16-Bit
DAC
16-Bit
16-Bit
DAC
DAC
B Gain
1OUTA1
1OUTA2
1OUTB1
1OUTB2
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Analog Monitoring and Control
Analog Monitoring and Control/Fan Controllers
77
CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
Analog Input Signal Ground
Sync Load
(External/Internal)
Channel Select
ADC Trigger
(External / Internal)
Ext. Ref_IN
DAC 7_OUT
Current_Setting Resistor
Precision_Current
TEMP
DAC 0_OUT
Serial-Parellel Shift Reg.
SPI Interface
CONVERT
ELDAC
SCLK
SS
MOSI
MISO
RESET
DAV
GALR
GPIO-0 / ALR0
GPIO-3 / ALR3
GPIO-4
GPIO-5
AV
DD
AGND
DV
DD
DGND
BV
DD
•••
(Ext. ADC
Trigger)
(Ext. DAC
Sync Load)
On Chip
Temperature
Sensor
ADCMUX
DAC-0
DAC-7
Out-of-Range
Alarm
Range
Threshold
Registers and Control Logic
Reference
Analog Monitoring and Control Circuit
AMC7823
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/AMC7823
AMC7823 functional block diagram.
Key Features
• 12-bit, 200kSPS ADC
8 analog inputs
Input range: 0 to 2 x V
REF
• Programmable V
REF
, 1.25V or 2.5V
• Eight 12-bit DACs (2µs settling time)
• Internal bandgap reference
• On-chip temperature sensor
• Precision current source
• SPI interface, 3V or 5V logic compatible
• Single supply: 3V to 5V
• Power-down mode
• Packaging: QFN-40 (6x6mm)
Applications
• Communications equipment
• Optical networks
• ATE
• Industrial control and monitoring
• Medical equipment
The AMC7823 is a complete analog monitoring and control circuit that includes an 8-channel, 12-bit ADC, eight 12-bit DACs, four analog input out-of-range alarms and six GPIOs to monitor analog signals and to control external devices. Also included are an internal sensor to monitor chip temperature and a precision current source to drive remote thermistors or RTDs to monitor remote temperatures.
Data acquisition system products from TI come with a reputation for high performance and integration along with the design flexibility required for a broad range of applications such as motor control, smart sensors for fan control, low-power monitoring and control, instrumentation systems, tunable lasers and optical power monitoring.
For motor control and three-phase power control, TI offers the new ADS7869. The ADS7869 is a 12-channel, 12-bit data
acquisition system featuring simultaneous sampling with three 12-bit SAR ADCs at 1MSPS with serial and parallel interface for high-speed data transfer and data processing.
The AMC1210 is a four-channel, digital sync filter designed to work with our family of current­shunt and Hall Effect sensor delta-sigma modulators to simplify the completion of the ADC function. The AMC1210 has four individual digital filters that can be used independently
with combinations of ADS1202, ADS1203, ADS1204, ADS1205 and ADS1208. It can also be used with the future AMC1203 device with built-in isolation.
The AMC7823 is a highly-integrated data acquisition and control device that has eight multiplexed analog inputs into a 12-bit, 200kSPS SAR ADC and eight analog voltage outputs from the internal eight 12-bit DACs.
AMC7823
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Analog Monitoring and Control
Analog Monitoring and Control/Fan Controllers
78
Intelligent Fan Controller with I2C Interface
AMC6821
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/AMC6821
AMC6821 functional block diagram.
*AMC6821 expected release date 3Q 2007.
Key Features
• Remote/local temperature sensor range:
+50°C to +100°C, ±1°C
–25°C to +125°C, ±3°C
• Resolution: 0.125°C
• PWM controller
Frequency: 10 to 40kHz
Duty cycle: 0 to 100%, 8-bits
• Automatic fan speed control loops
• SMB interface
• Power: 2.7V to 5.5V
• Packaging: QFN-16 (4x4mm), SSOP-16
Applications
• Notebook PCs
• Network servers
• Desktop PCs
• Telecommunication equipment
• PC-based equipment
The AMC6821 is an analog interface circuit with an integrated temperature sensor to measure the ambient temperature and one remote diode sensor input to measure external (CPU) temperature—ideal for notebook and desktop PC applications. It also includes a PWM controller, automatic fan speed control loops and SMB interface. See page 84 for specifications.
AMC6821
16-Bit, 250kSPS, 6-Channel ADC
ADS8365
Get datasheets at: www.ti.com/sc/device/ADS8365
ADS8365 functional block diagram.
Key Features
• Six input channels
• Fully differential inputs
• Six independent 16-bit ADCs
• 4µs throughput per channel
• Tested no missing codes to 15-bits
• Low power:
Normal mode: 200mW
Nap mode: 50mW
Power-down mode: 50µW
• Pin compatible to ADS8364
• Packaging: TQFP-64
Applications
• Motor control
• Multi-axis positioning systems
• 3-phase power control
The ADS8365 includes six, 16-bit, 250kSPS ADCs with six fully differential input channels grouped into two pairs for high-speed simultaneous signal acquisition. The ADS8365 architecture provides excellent common-mode rejection of 80dB at 50kHz—ideal for high-noise environments. It also includes a high-speed parallel interface with a direct address mode, a cycle and a FIFO mode.
ADS8365
Ch A0+ Ch A0–
Hold A
Ch A1+
Ch A1–
Ch B0+ Ch B0–
Hold B
Ch B1+ Ch B1–
Ch C0+ Ch C0–
Hold C
Ch C1+ Ch C1–
REFIN
REFOUT
S/H
Amp 1
S/H
Amp 2
S/H
Amp 3
S/H
Amp 4
S/H
Amp 5
S/H
Amp 6
Ref Buffer
Ref Buffer
Ref Buffer
Internal
Reference
ADC 1
ADC 2
ADC 3
ADC 4
ADC 5
ADC 6
2.5V
Interface
Conversion
and
Control
FIFO
Register
6x
A0 A1 A2 ADD NAP RD WR CS FD EOC CLK RESET BYTE DATA INPUT/OUTPUT
VDD
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Analog Monitoring and Control
Analog Monitoring and Control/Fan Controllers
79
Analog Monitoring and Control Selection Guide
Sample Number of
Res. Rate Input Input Voltage Linearity NMC SINAD Power
Device (Bits) (kSPS) Channels Interface (V) V
REF
(%) (Bits) (dB) (mW) Package Price
*
ADS1201 24 4 1 SE/1 Diff Serial 5 Int/Ext 0.0015 24 25 SOIC-16 $6.15
AMC1210 16 90MHz Clock 4 Digital Filters Serial/P4 Digital Bit Stream 1.5/MHz/Ch QFN-40 $1.55
ADS8361 16 500 2 x 2 Diff Serial, SPI ±2.5 at 2.5 Int/Ext 0.0012 14 83 150 SSOP-24 $8.75 ADS8364 16 250 1 x 6 Diff P16 ±2.5 at 2.5 Int/Ext 0.009 14 82.5 413 TQFP-64 $18.10
ADS8365 16 250 1 x 6 Diff P16 ±2.5 at 2.5 Int/Ext 0.006 15 87 190 TQFP-64 $16.25
ADS1202 16 40 1 SE/1 Diff Serial ±0.25 Int/Ext 0.018 16 33 TSSOP-8 $2.50 ADS1203 16 40 1 SE/1 Diff Serial ±0.25 Int/Ext 0.003 16 33 TSSOP-8 $2.70
ADS1208 16 40 1 SE/1 Diff Serial ±0.125 Int/Ext 0.012 16 64 TSSOP-16 $2.95 ADS1205 16 40 2 Diff Serial ±2.5 at 2.5 Int/Ext 0.005 16 75 QFN-24 $3.95
ADS1204 16 40 4 SE/4 Diff Serial ±2.5 at 2.5 Int/Ext 0.003 16 122 QFN-32 $6.75 ADS7871 14 40 8 SE/4 Diff Serial, SPI PGA (1,2,4,8,10,16,20) Int/Ext 0.03 13 6 SSOP-28 $5.00
ADS7863 12 2000 2 x 2 Diff Serial, SPI ±2.5 at 2.5 Int/Ext 0.024 12 40 SSOP-14 $4.90
ADS7869 12 1000 12 Diff Serial, SPI/P12 ±2.5 at +2.5 Int 0.06 11 71 175 TQFP-100 $14.60
ADS7861 12 500 2 x 2 Diff Serial, SPI ±2.5 at 2.5 Int/Ext 0.024 12 70 25 SSOP-14 $4.05 ADS7862 12 500 2 x 2 Diff P12 ±2.5 at 2.5 Int/Ext 0.024 12 71 25 TQFP-32 $5.70 ADS7864 12 500 3 x 2 Diff P12 ±2.5 at 2.5 Int/Ext 0.024 12 71 50 TQFP-48 $6.65
AMC7823 12 200 8 SE I/O DAS Serial, SPI 5 Int/Ext 0.024 12 74 100 QFN-40 $9.75
AMC7820 12 100 8 DAS Serial, SPI 5 Int 0.024 12 72 (typ) 40 TQFP-48 $3.75 ADS7870 12 50 8 SE Serial, SPI PGA (1,2,4,8,10,16,20) Int 0.06 12 72 4.6 SSOP-28 $4.15
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Dual, 1MSPS, 12-Bit, 2 + 2 Channel ADC
ADS7863
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/ADS7863
ADS7863 functional block diagram. *Expected release date 4Q 2007.
Key Features
• 4 input channels
• Fully differential inputs
• 500ns total throughput per channel
• No missing codes
• 2MHz effective sampling rate
• Low power: 40mW
• SSI serial interface
Applications
• Motor control
• Multi-axis positioning systems
• 3-phase power control
ADS7863
See page 29 for
a complete
selection of analog
current shunt monitors.
The ADS7863 is a dual, 12-bit, 1MSPS, ADC with four fully differential input channels grouped into two pairs for high-speed, simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments. The ADS7863 offers a high-speed, dual serial interface and control inputs to minimize software overhead.
CH A0+
CH A0–
SHA
CH A1+
CH A1–
REFIN
SHA
Internal
2.5V
Reference
REFOUT
CH B0+
CH B0–
CH B1+
CH B1–
CDAC
CDAC
SAR
SAR
COMP
COMP
Serial
Interface
SERIAL DATA A
SERIAL DATA B
M0
M1
A0
CLOCK
CS
RD
BUSY
CONVST
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
80
Analog Monitoring and Control
Digital Current Shunt Monitors
The ADS120x series are 2nd-order, precision, delta-sigma (∆Σ) modulators operating from a single +5V supply at a 10MHz clock rate, specifically used in motor control applications for measuring and digitizing motor current. The targeted application is servo motor control.
Both the ADS1202 and ADS1203 modulators have an input range set for ±250mV to directly digitize current passing through a shunt resis­tor. The ADS1204 and ADS1205 are optimized
for magnetic-based current sensors and feature two and four input channels. In contrast, the ADS1208 is optimized for Hall Effect sensors. It has integrated all the key components needed to directly connect the sensor, including a programmable current source for the sensor excitation and internal operational amplifiers to buffer the analog input.
With the appropriate digital filter and modulator rate, provided by the AMC1210, the ADS120x will achieve 16-bit analog-to-digital conversion performance with no missing codes. They also offer excellent INL, DNL and low distortion at 1kHz. They feature low power and are available in a TSSOP and QFN packages.
See page 29 for a complete
selection of analog
current shunt monitors.
Digital Current Shunt ADCs Selection Guide
Sample Number of
Res. Rate Input Input Voltage Linearity NMC SINAD Power
Device (Bits) (kSPS) Channels Interface (V) V
REF
(%) (Bits) (dB) (mW) Package(s) Price
*
AMC1210 16 90MHz Clock 4 Digital Filters Serial/P4 Digital Bit Stream 1.5/MHz/Ch QFN-40 $1.55
ADS1202 16 10MHz Clock 1 SE/1 Diff Serial ±0.25 Int/Ext 0.018 16 70 30 TSSOP-8 $2.50 ADS1203 16 10MHz Clock 1 SE/1 Diff Serial ±0.25 Int/Ext 0.005 16 85 33 TSSOP-8, QFN-16 $2.70 ADS1204 16 10MHz Clock 4 SE/4 Diff Serial ±2.5 at 2.5 Int/Ext 0.005 16 89 122 QFN-32 $6.75
ADS1205 16 10MHz Clock 2 SE/2 Diff Serial ±2.5 at 2.5 Int/Ext 0.005 16 88 59 QFN-24 $3.95 ADS1208 16 10MHz Clock 1 SE/1 Diff Serial ±0.125 Int/Ext 0.012 16 81 64 TSSOP-16 $2.95
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Possible input modulator configuration for current measurement with AMC1210 digital filter.
±250mV
I
1
I
2
I
3
0-5V
0-5V
Reference
Voltage
2.5V
Reference
Voltage
2.5V
ADS1203 ISO721 AMC1210
2nd-Order
Modulator
RC Oscillator
20MHz
ADS1204/ADS1205
2nd-Order
Modulator
2nd-Order
Modulator
RC Oscillator
20MHz
Logic
Circuit
Logic
Circuit
MDAT
MCLK
MCLK
MDATB
CLKOUT
4kV Isolatoin
Programmable
Sinc Filter 1
Programmable
Sinc Filter 2
Programmable
Sinc Filter 3
Logic
Circuit
SPI
Interface
Parallel
Interface
ADS1208
±125mV
I
4
Reference
Voltage
2.5V
2nd-Order
Modulator
RC Oscillator
20MHz
Logic
Circuit
MDAT
MCLK
Programmable
Sinc Filter 4
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Voltage References
Voltage References
81
Precision Voltage and Current References
TI’s family of voltage and current references incorporates state-of-the-art technology to offer stable, high-precision, high-performance references in tiny packages.
Series Voltage References
Series voltage references are known for excellent accuracy and stability over temperature. Typically three terminal devices, series voltage references are often used to provide stable reference voltages for ADCs and microcontrollers.
The REF29xx, REF30xx, REF31xx and REF32xx are TI’s newest available families of precision, low-power, low-dropout, series voltage references in tiny SOT23-3 packages. Drift specifications range from 100ppm/°C to less than 10ppm/°C. Small size and low power consumption (100µA typ) make them ideal for portable and battery-powered applications.
Current References
Many applications require the use of a precision current source or current sink. The REF200 combines three circuit building-blocks on a single monolithic chip—two 100µA current sources and a current mirror capable of being used as a current source or sink.
Integrated Op Amp and Voltage References
For applications requiring an op amp plus voltage reference or comparator plus voltage reference, TI has an offering of integrated function voltage references. The TLV3011 and TLV3012 are low-power, (5µA) 6µs propagation delay comparators with an integrated shunt voltage reference.
See pages 24 -25 for comparator and integrated voltage reference
specifications
These voltage references are stable with any capacitive load and can sink/source a minimum of up to 10mA of output current and are specified for the temperature range of –40°C to +125°C.
Shunt Voltage References
Shunt voltage references are precision diodes designed to offer good accuracy at extremely low power. These devices require a current source, typically a supply voltage and pull-up resistor to keep forward biased.
The REF1112 is a 1µA, two-terminal reference diode designed for high accuracy with outstanding temperature characteristics at low operating currents. Precision thin-film resistors result in 0.2% initial voltage accuracy and 50ppm/°C maximum temperature drift. The REF1112 is specified from –40°C to +85°C, with operation from 1µA to 5mA, and is offered in a SOT23-3 package.
30ppm/°C Drift, 3.9µA, Series Voltage References in SC70
REF3312, REF3318, REF3320, REF3325 REF3330, REF3333
Get samples, datasheets and evaluation modules at: www.ti.com/sc/device/PARTnumber (Replace PARTnumber with REF3312, REF3318, REF3320, REF3325, REF3330 and REF3333)
A low power REF33xx reference current. *Expected REF33xx release date, 4Q 2007
Key Features
• microSize packages: SC70-3, SOT23-3
• Low supply current: 3.9µA (typ)
• Low temperature drift: 30ppm/°C (max)
• High output current: ±5mA
• High accuracy: ±0.1%
Applications
• Portable battery powered equipment
• Handheld monitoring
• Data acquisition systems
• Medical equipment
• Test equipment
The REF33xx combines the excellent performance of a 30ppm/°C precision (0.1% accuracy) voltage reference with ultra-low quiescent current (5µA max) and space-saving SC70 micro-packaging to offer a design for performance portable applications. The REF33xx can sink and source up to 5mA and is specified over the industrial temperature range of –40°C to +125°C.
2.5V Supply
1µF to 10µF
5
Microcontroller
+
1µF to 10µF
V
S
2.5V
V
REF3112
GND
IN
V
= 1.25V
OUT
0.1µF
0V to 1.25V
V
+In
–In
GND
REF
ADS8324
D
DCLOCK
V
CC
+
CS
OUT
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Voltage References
Voltage References
82
3ppm/°C Drift, 0.05% Accurate, Low-Noise, Precision Series Voltage References
REF50xx
Get samples, datasheets and evaluation modules at: www.ti.com/sc/device/REF5020
REF50xx package diagrams. *Expected release date, 3Q 2007.
Key Features
• High accuracy: 0.05%
• Low temperature drift: 3ppm/°C (max)
• Very low noise: 6µVpp
• High output current: ±10mA
• Wide supply range: 2.5V to 18V
• Industrial temperature range: –40°C to +125°C
• Packaging: SO-8 and MSOP
Applications
• Test and measurement
• 16-bit data acquisition systems
• Medical and patient monitoring
• Industrial process control
The REF50xx brings a new level of precision to the TI voltage reference line. Offering very low noise, 3ppm/°C (max) drift and 0.05% initial accuracy, the REF50xx is designed for industrial, medical and test applications that require performance over temperature.
Voltage References Selection Guide
Long-Term Noise
Initial Drift Stability 0.1 to 10Hz I
Q
Temperature Output
Accuracy (ppm/°C) (ppm/1000hr) (µVp-p) (mA) Range Current
Device Description Output (V) (%) (max) (max) (typ) (typ) (max) (°C) (mA) Package(s) Price
*
REF50xx High Accuracy Bandgap 2.048, 2.5, 3.0, 4.096, 0.05 3 6 to 30 1 –40 to +125 ±10 MSOP-8, SOIC-8 $3.95
Reference 4.5, 5
REF33xx microPower, Bandgap
1.25, 2.048, 2.5
0.1 30 24 35 to 80 0.005 –40 to +125 ±5 SC-70 $0.95
3.0, 3.3, 4.096
REF32xx Low Drift, Bandgap
1.25, 2.048, 2.5
0.2 7 24 17 to 53 0.1 0 to +125 ±10 SOT23-6 $1.70
3.0, 3.3, 4.096
REF31xx Bandgap
1.25, 2.048, 2.5
0.2 15 24 15 to 30 0.1 –40 to +125 ±10 SOT23-3 $1.10
3.0, 3.3, 4.096
REF30xx Bandgap
1.25, 2.048, 2.5,
0.2 50 24 20 to 45 0.05 –40 to +125 25 SOT23-3 $0.59
3.0, 3.3, 4.096
REF29xx Bandgap
1.25, 2.048, 2.5,
2 100 24 20 to 45 0.05 –40 to +125 25 SOT23-3 $0.49
3.0, 3.3, 4.096 REF02A Low Drift, Buried Zener 5 0.19 15 50 4 1.4 –25 to +85 +21, –0.5 SOIC-8 $1.65 REF02B Low Drift, Buried Zener 5 0.13 10 50 4 1.4 –25 to +85 +21, –0.5 SOIC-8 $2.27 REF102A Low Drift, Buried Zener 10 0.1 10 20 5 1.4 –25 to +85 +10, –5 SOIC-8 $1.65 REF102B Low Drift, Buried Zener 10 0.05 5 20 5 1.4 –25 to +85 +10, –5 SOIC-8 $4.15 REF102C Ultra-Low Drift, 10 0.025 2.5 20 5 1.4 –25 to +85 +10, –5 SOIC-8 $4.85
Buried Zener
Shunt
REF1112 µPower, 1.25V Shunt 1.25 0.2 30 60 25 0.0015 –40 to +125 1A to 5mA SOT-23 $0.85
Current Reference
REF200 Dual Current Reference 100µA/Channel ±1µA 25 (typ) 1µAp-p –25 to +85 50µA to PDIP-8, SOIC-8 $2.60
with Current Mirror 400µA
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Model Voltage Out
REF5020 2.048V REF5025 2.5V REF5030 3.0V REF5040 4.096V REF5045 4.5V REF5050 5V
1GNDs
2V
IN
MSOP
3Tem p
4GNDf
8NC
7V
OUTs
6V
OUTf
5 TRIM
Tem p
GND
NC
1
V
2
IN
3
4
SO-8
NC
8
7
NC
V
6
OUT
TRIM
5
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Temperature Sensors
Temperature Sensors
83
Digital Temperature Sensors
TI’s high-accuracy, low-power temperature sensors are specified for operation from –40°C to +125°C and are designed for cost-effective thermal measurement in a variety of communication, computer, consumer, industrial and instrumentation applications.
These silicon-based temperature sensors are designed on a unique topology that offers excellent accuracy and linearity over temperature. Low power and standard communication protocol pair nicely with low-power microcontrollers and battery­powered designs.
The digital temperature output of the TMP family is created using a high-performance, 12-bit, delta-sigma ADC that outputs temperatures as a digital word. Programming and communication with the TMP1xx family of devices is done via an I2C/2-wire or SPI interface for easy integration into existing digital systems.
Temperature Sensor Core
A typical block diagram of the TMP family of digital temperature sensors is shown below. Temperature is sensed through the die flag of the lead frame where the temperature sensing element is the chip itself, ensuring the most accurate temperature information of the monitored area and allowing designers to respond quickly to “over” and “under” thermal conditions.
Features of TMP Digital
Temperature Sensors
Several TMP digital sensors offer programmable features, including over­and under-temperature thresholds, alarm functions and temperature resolution. With extremely low power consumption in active (50µA) and standby (0.1µA) modes, the TMP12x family offers as low as 1.5°C minimum error in a SOT23 package and is an excellent candidate for low-power thermal monitoring applications.
The new TMP105 and TMP106 are the world’s smallest digital temperature sensors. Available in a tiny 1mm x 1.5mm chipscale package, they use only 50µA of current and are ideal for portable applications including mobile phones, portable media players, digital still cameras, hard disk drives, laptops, and computer accessories. TMP105 has 1.8V to
3.0V logic, while TMP106 has 2.7V to
5.5V logic.
Typical block diagram of the TMP family of digital temperature sensors.
0.5°C, Digital Out Temperature Sensor
TMP275
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/TMP275
TMP275 functional block diagram.
Key Features
• 8 addresses
• Digital output: two-wire serial interface
• Resolution: 9- to 12-bits, user-selectable
• Accuracy: ±0.5°C (max) from +10°C to +85°C ±0.75°C (max) from +0°C to +100°C
• Low quiescent current: 50µA, 0.1µA standby
• Wide supply range: 2.7V to 5.5V
• No power-up sequence required; two-wire bus pull-ups can be enabled before V+
• Packaging: MSOP-8 and SO-8 packages
Applications
• Power-supply temperature monitoring
• Computer peripheral terminal protection
• Notebook computers
• Cell phones
• Battery management
• Office machines
• Thermostat controls
• Environmental monitoring and HVAC
• Electromechanical device temperature
The TMP275 is a 0.5°C accurate, two-wire, serial output temperature sensor available in an MSOP-8 or an SO-8 package. The TMP275 is capable of reading temperatures with a resolution of 0.0625°C. The TMP275 is SMBus-compatible and allows up to eight devices on one bus. It is ideal for extended temperature measurement in a variety of communication, computer, consumer, environmental, industrial, and instrumentation applications.
The TMP275 is specified for operation over a temperature range of –40°C to +125°C.
TMP275
Temperature
Diode
1
2
3
4
Temp
Sensor
A/D
Converter
OSC
SDA
SCL
ALERT
GND
and Temp
TMP175, TMP75
Control
Logic
Serial
Interface
Config.
Register
8
V+
7
A0
6
A1
5
A2
Temperature
Diode
1
SDA
SCL
ALERT
GND
Tem p.
Sensor
27
DS
A/D
Converter
3
4
OSC
Control
Logic
Serial
Interface
Config.
and Temp.
Register
8
V+
A0
6
A1
5
A2
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Temperature Sensors
Temperature Sensors
84
Resistor-Programmable, Low-Power Temperature Switch in SC70
TMP300
Get samples, datasheets, evaluation modules and app reports at: www.ti.com/sc/device/TMP300
TMP300 functional block diagram. *Expected release date 4Q 2007
Key Features
• Stand-alone operation
• Resistor-programmable trip point ±3°C (max) error over –40°C to +125°C
• Programmable hysteresis: 5°C/10°C
• Analog output: 10mV/°C
• Open-drain output
• Low power: 90µA (max)
• Wide supply range: 1.8V to 18V
• Operation: –40°C to +150°C
• Packaging: SC70-6
Applications
• Power supplies
• DC/DC converters
• Thermal monitoring
• Electronic protection systems
The TMP300 is an easy-to-use resistor-programmable, low-power temperature switch with auxiliary analog output. It allows a temperature threshold point to be set by adding an external resistor. Two levels of hysteresis are available. TMP300 also has an analog output (V
TEMP
) that can be used as a testing point or in temperature compensation loops. With a supply voltage as low as 1.8V, low current consumption and a tiny SC70 package, the TMP300 is ideal for power- and space-sensitive applications.
TMP300
Temperature Switch
Trip Point Specified Temp Operating Temp I
Q
Accuracy Output Range Range Supply Voltage (µA)
Device Description (˚C) (typ) (mV/˚C) (˚C) (˚C) (V) (max) Package(s) Price
*
TMP300 Comparator-Output Temperature ±1 10 –40 to +125 –40 to +150 1.8 to 18 90 SC-70 $0.70
Switch w/Additional Analog Output
*
Suggested resale price in U.S. dollars in quantities of 1,000. Preview products are listed in bold blue.
Fan Controller
Accuracy Fan Control I
Q
Supply
Device Description (˚C) Input Modes Output (mA) Voltage (V) Interface Package(s) Price
*
AMC6821 ±1˚C Remote and Local Temp Sensors ±1 1 Local and 1 Programmable, Programmable 3 (active) 2.7 to 5.5 I2C/SMBus SOP-16 4mm x 5mm $2.50
with Integrated Fan Controller Remote Temp Automatic, PWM Frequency 0.05 QFN-16 4mmx 4mm
and Fixed RPM and Duty Cycle (shutdown)
*
Suggested resale price in U.S. dollars in quantities of 1,000. Preview products are listed in bold blue.
Remote Temperature Sensors
Remote Sensor Local Sensor
Accuracy Accuracy
Over Temp Over Temp Specified Ambient Remote Sensor Supply I
Q
Range Range Temp Range Temp Range Voltage (µA)
Device Description (˚C) (max) (˚C) (max) (˚C) (˚C) (V) (typ) Package(s) Price*
TMP401 Remote and Local Temperature Sensor 1 3 –40 to +125 –40 to 150 2.7 to 5.5 350 MSOP $1.50
TMP411 Remote and Local Temp Sensor 1 3 –40 to +125 –40 to 150 2.7 to 5.5 350 MSOP, SOIC $1.75
with Programmable Non-Ideality Factor
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
V
TEMP
T
SET
R
SET
Tem p
Sensor
220k
V+
R
PULL- UP
OVER TEMP
HYST
SET
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Temperature Sensors
Temperature Sensors
85
Temperature Sensors Selection Guide
Accuracy
Over Temp Specified Operating Temp Supply I
Q
Range Temp Range Temp Range Resolution Voltage (µA)
Device Description (˚C max) (˚C) (˚C) (Bits) (V) (typ) Package(s) Price
*
I2C/SMBus Interface
TMP100 Digital Temp Sensor 2 –25 to +85 –55 to +125 9 to 12 2.7 to 5.5 45 SOT-23 $0.75
3 –55 to +125
TMP101 Digital Temp Sensor with Prog. 2 –25 to +85 –55 to +125 9 to 12 2.7 to 5.5 45 SOT-23 $0.80
Thermostat/Alarm Function 3 –55 to +125
TMP105 Chipscale Digital Temp Sensor 2 –25 to +85 –55 to +127 9 to 12 2.7 to 5.5 50 1mm x 1.5mm WCSP $0.85
with 1.8V to 3.0V Logic 3 –40 to +125
TMP106 Chipscale Digital Temp Sensor 2 –25 to +85 –55 to +127 9 to 12 2.7 to 5.5 50 1mm x 1.5mm WCSP $0.85
with 2.7V to 5.0V Logic 3 –40 to +125
TMP275 Ultra-High Accuracy 0.5 +10 to +85 –55 to +127 9 to 12 2.7 to 5.5 50 MSOP, SOIC $1.25
Digital Temp Sensor 1 –40 to +125
TMP175 Digital Temp Sensor with 1.5 –25 to +85 –55 to +127 9 to 12 2.7 to 5.5 50 MSOP, SOIC $0.85
2-Wire Interface, 27 Addresses 2 –40 to +125
TMP75 Industry Standard Sensor with 2 –25 to +85 –55 to +127 9 to 12 2.7 to 5.5 50 MSOP, SOIC $0.70
2-Wire Interface, 8 Addresses
TMP102 Ultra Low Power Digital Temp 2 –25 to 85 –55 to 125 12 1.4 to 3.6 12 SOT-563 $0.75
Sensor in micro Surface Mount Pkg. 3 –55 to 125
SPI Interface
TMP121 1.5˚C Accurate Digital Temp 1.5 –25 to +85 –55 to +150 12 2.7 to 5.5 35 SOT-23 $0.90
Sensor with SPI Interface 2 –40 to +125
TMP122 1.5˚C Accurate Programmable 1.5 –25 to +85 –55 to +150 9 to 12 2.7 to 5.5 50 SOT-23 $0.99
Temp Sensor with SPI Interface 2 –40 to +125
TMP123 1.5˚C Accurate Digital Temp 1.5 –25 to +85 –55 to +150 12 2.7 to 5.5 35 SOT-23 $0.90
Sensor with SPI Interface 2 –55 to +125
TMP124 1.5˚C Accurate Programmable 1.5 –25 to +85 –55 to +150 9 to 12 2.7 to 5.5 50 SOIC $0.70
Temp Sensor w/SPI Interface 2 –40 to +125
TMP125 2˚C Accurate Digital Temp. Sensor 2 –25 to +85 –55 to +125 10 2.7 to 5.5 36 SOT-23 $0.80
with SPI Interface 2.5 –40 to +125
Single-Wire, SensorPath™ Interface
TMP141 Digital Temp Sensor with 3 –40 to +125 –55 to +127 10 2.7 to 5.5 110 SOT-23, MSOP $0.65
Single-Wire SensorPath Bus 2 –25 to +85
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Quick Reference Selection Table
86
ADC Selection Guide
Res. Sample No. of Input SINAD SNR SFDR INL DNL No. of Analog Logic Power Refer to
Device (Bits) Rate (kSPS) Architecture Channels (dB) (dB) (dB) (%) (±LSB) NMC V
REF
Interface Supplies Supply Supply (mW) Price
*
Page
ADS1258 24 125 Delta-Sigma 16 SE/8 Diff 0.0015 1 24 Ext Serial, SPI 2 4.75, 5.25 1.8, 3.6 40 $7.95 53, 55
ADS1278 24 125 Delta-Sigma 8 Diff Simultaneous 111 108 0.001 1 24 Ext Serial, SPI w/FSYNC 2 4.75, 5.25 2.5, 3.6 60-600 $23.95 54, 55
ADS1274 24 125 Delta-Sigma 4 Diff Simultaneous 111 108 0.001 1 24 Ext Serial, SPI w/FSYNC 2 4.75, 5.25 2.5, 3.6 30-300 $13.95 54, 55
ADS1271 24 105 Delta-Sigma 1 Diff 109 108 0.0015 1 24 Ext Serial, SPI w/FSYNC 2 4.75, 5.25 2.5, 3.6 35-100 $5.90 54, 55
ADS1252 24 41 Delta-Sigma 1 SE/1 Diff 0.0015 1 24 Ext Serial 1 4.75, 5.25 4.75, 5.25 40 $6.45 55
ADS1256 24 30 Delta-Sigma 8 SE/4 Diff 0.001 1 24 Ext Serial, SPI 2 4.75, 5.25 1.8, 3.6 35 $6.95 55
ADS1255 24 30 Delta-Sigma 2 SE/1 Diff 0.001 1 24 Ext Serial, SPI 2 4.75, 5.25 1.8, 3.6 35 $6.50 55
ADS1253 24 20 Delta-Sigma 4 SE/4 Diff 0.0015 1 24 Ext Serial 1 4.75, 5.25 4.75, 5.25 7.5 $6.70 55
ADS1254 24 20 Delta-Sigma 4 SE/4 Diff 0.0015 1 24 Ext Serial 2 4.75, 5.25 1.8, 3.6 4 $6.70 55
ADS1251 24 20 Delta-Sigma 1 SE/1 Diff 0.0015 1 24 Ext Serial 1 4.75, 5.25 4.75, 5.25 7.5 $5.60 55
ADS1211 24 16 Delta-Sigma 4 SE/4 Diff 0.0015 1 24 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 27.5 $12.00 86
ADS1210 24 16 Delta-Sigma 1 SE/1 Diff 0.0015 1 24 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 27.5 $11.00 55
ADS1201 24 4 Modulator
1
1 Diff 0.0015 1 24 Int/Ext Bit Stream 1 4.75, 5.25 4.75, 5.25 40 $6.15 79
MSC1200 24 1 Delta-Sigma 8 Diff/8 SE 0.0015 1 24 Int/Ext 8051, 4/8 Flash, IDAC 1 2.7, 5.25 3 $5.95 57
MSC1210 24 1 Delta-Sigma 8 Diff/8 SE 0.0015 1 24 Int/Ext 8051, 4-32, 8 Flash, PWM 1 2.7, 5.25 4 $8.95 57
MSC1211 24 1 Delta-Sigma 8 Diff/8 SE 0.0015 1 24 Int/Ext 8051, 4-32, 8 Flash, I/VDAC 1 2.7, 5.25 4 $17.50 57
MSC1212 24 1 Delta-Sigma 8 Diff/8 SE 0.0015 1 24 Int/Ext 8051, 4-32, 8 Flash, I/VDAC 1 2.7, 5.25 4 $16.95 57
MSC1213 24 1 Delta-Sigma 8 Diff/8 SE 0.0015 1 24 Int/Ext 8051, 4-32, 8 Flash, I/VDAC 1 2.7, 5.25 4 $12.65 57
MSC1214 24 1 Delta-Sigma 8 Diff/8 SE 0.0015 1 24 Int/Ext 8051, 4-32, 8 Flash, I/VDAC 1 2.7, 5.25 4 $12.15 57
MSC1201 24 1 Delta-Sigma 6 Diff/6 SE 0.0015 1 24 Int/Ext 8051, 4/8 Flash, IDAC 1 2.7, 5.25 3 $5.60 57
ADS1216 24 0.78 Delta-Sigma 8 SE/8 Diff 0.0015 1 24 Int/Ext Serial, SPI 2 2.7, 5.25 2.7, 5.25 0.6 $5.00 55
ADS1217 24 0.78 Delta-Sigma 8 SE/8 Diff 0.0012 1 24 Int/Ext Serial, SPI 2 2.7, 5.25 2.7, 5.25 0.8 $5.00 55
ADS1218 24 0.78 Delta-Sigma 8 SE/8 Diff 0.0015 1 24 Int/Ext Serial, SPI 2 2.7, 5.25 2.7, 5.25 0.8 $5.50 55
ADS1224 24 0.24 Delta-Sigma 4 SE/4 Diff 0.0015 1 24 Ext Serial 2 2.7, 5.5 2.7, 5.5 0.5 $3.25 55
ADS1222 24 0.24 Delta-Sigma 2 SE/2Diff 0.0015 1 24 Ext Serial 2 2.7, 5.25 2.7, 5.25 0.5 $2.95 55
ADS1234 24 0.08 Delta-Sigma 4 SE/4Diff 0.0015 1 24 Ext Serial 2 2.7, 5.25 2.7, 5.25 3 $4.50 53, 55
ADS1232 24 0.08 Delta-Sigma 2 SE/2Diff 0.0015 1 24 Ext Serial 2 2.7, 5.25 2.7, 5.25 3 $3.90 53, 55
ADS1226 24 0.08 Delta-Sigma 2 Diff 0.0015 1 24 Ext Serial 2 2.7, 5.25 2.7, 5.25 1.5 $2.95 54, 55
ADS1225 24 0.08 Delta-Sigma 1 Diff 0.0015 1 24 Ext Serial 2 2.7, 5.25 2.7, 5.25 1.5 $2.75 54, 55
ADS1241 24 0.015 Delta-Sigma 8 SE/4 Diff 0.0015 1 24 Ext Serial, SPI 2 2.7, 5.25 2.7, 5.25 0.5 $4.20 55
ADS1243 24 0.015 Delta-Sigma 8 SE/4 Diff 0.0015 1 24 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 0.6 $3.95 55
ADS1240 24 0.015 Delta-Sigma 4 SE/2 Diff 0.0015 1 24 Ext Serial, SPI 2 2.7, 5.25 2.7, 5.25 0.6 $3.80 55
ADS1242 24 0.015 Delta-Sigma 4 SE/2 Diff 0.0015 1 24 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 0.6 $3.60 55
ADS1244 24 0.015 Delta-Sigma 1 SE/1 Diff 0.0008 1 24 Ext Serial 2 2.5, 5.25 1.8, 3.6 0.3 $2.95 55
ADS1245 24 0.015 Delta-Sigma 1 SE/1 Diff 0.0015 1 24 Ext Serial 2 2.5, 5.25 1.8, 3.6 0.5 $3.10 55
ADS1213 22 6.25 Delta-Sigma 4 SE/4 Diff 0.0015 1 22 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 1.4 $10.00 86
ADS1212 22 6.25 Delta-Sigma 1 SE/1 Diff 0.0015 1 22 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 1.4 $9.00 55
ADS1250 20 25 Delta-Sigma 1 SE/1 Diff 0.003 1 20 Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 75 $6.95 55
DDC101 20 10 Delta-Sigma 1 SE IIN 0.025 1 20 Ext Serial 2 4.75, 5.25 4.75, 5.25 80 $29.00 55
DDC118 20 3 Delta-Sigma 8 SE IIN 0.025 1 20 Ext Serial 2 4.75, 5.0 2.7, 5.25 110 $32.00 55
DDC114 20 3 Delta-Sigma 4 SE IIN 0.025 1 20 Ext Serial 2 4.75, 5.0 2.7, 5.25 55 $18.00 55
1
The Data Rate is dependent on clock divided by the Oversampling Ratio.
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Quick Reference Selection Table
87
Res. Sample No. of Input SINAD SNR SFDR INL DNL No. of Analog Logic Power Refer to
Device (Bits) Rate (kSPS) Architecture Channels (dB) (dB) (dB) (%) (±LSB) NMC V
REF
Interface Supplies Supply Supply (mW) Price
*
Page
DDC232 20 3 Delta-Sigma 32 SE IIN 0.025 1 20 Ext Serial 2 4.75, 5.0 2.7, 5.25 224-320 $70.00 55
DDC112 20 3 Delta-Sigma 2 SE IIN 0.025 1 20 Ext Serial 2 4.75, 5.25 4.75, 5.25 80 $12.10 55
ADS1230 20 0.08 Delta-Sigma 1 SE/1 Diff 0.003 1 20 Ext Serial 2 2.7, 5.25 2.7, 5.25 3 $2.50 53, 55
ADS1625 18 1,250 Delta-Sigma 1 Diff 91 93 103 0.0015 1 18 Int/Ext P18 2 4.75, 5.25 2.7, 5.25 515 $14.95 56
ADS1626 18 1,250 Delta-Sigma 1 Diff 91 93 103 0.0015 1 18 Int/Ext P18 w/FIFO 2 4.75, 5.25 4.75, 5.25 515 $15.50 56
ADS8484 18 1,250 SAR 1 Diff 98 99 120 0.0011 1 18 Int/Ext P8/P16/P18 2 4.75, 5.25 2.7, 5.25 220 $22.50 61
ADS8481 18 1,000 SAR 1 SE/1 PDiff 93 94 112 0.0013 1 18 Int/Ext P8/P16/P18 2 4.75, 5.25 2.7, 5.25 220 $19.80 60, 61
ADS8482 18 1,000 SAR 1 Diff 98 99 120 0.0011 1 18 Int/Ext P8/P16/P18 2 4.75, 5.25 2.7, 5.25 220 $20.25 60, 61
ADS8380 18 600 SAR 1 SE 90 91 112 0.0018 –1/+2 18 Int/ Ext Serial, SPI 1 4.75, 5.25 2.7, 5.75 110 $16.50 61
ADS8382 18 600 SAR 1 Diff 95 96 112 0.0018 –1/+2 18 Int/Ext Serial, SPI 1 4.75, 5.25 2.7, 5.75 110 $16.95 61
ADS8381 18 580 SAR 1 SE 88 88 112 0.0018 2.5 18 Ext P8/P16/P18 2 4.75, 5.25 2.7, 5.25 115 $16.65 61
ADS8383 18 500 SAR 1 SE 85 87 112 0.006 2.5 18 Ext P8/P16/P18 2 4.75, 5.25 2.95, 5.25 110 $15.75 61
ADS1610 16 10,000 Delta-Sigma 1 Diff 83 84 96 0.005 0.5 16 Ext P16 2 4.75, 5.25 2.7, 5.25 960 $19.95 56
ADS1605 16 5,000 Delta-Sigma 1 Diff 86 88 101 0.0015 0.25 16 Int/Ext P16 2 4.75, 5.25 2.7, 5.25 570 $14.95 56
ADS1606 16 5,000 Delta-Sigma 1 Diff 86 88 101 0.0015 0.25 16 Int/Ext P16 w/FIFO 2 4.75, 5.25 2.7, 5.25 570 $15.50 56
ADS8422 16 4,000 SAR 1 Diff 92.5 93 116 0.0023 –1, +1.5 16 Int/Ext P8/P16 2 4.75, 5.25 2.7, 5.25 160 $23.95 59, 61
ADS1602 16 2,500 Delta-Sigma 1 Diff 86 88 101 0.0015 0.25 16 Int/Ext Serial 2 4.75, 5.25 2.7, 5.25 530 $12.50 56
ADS8410 16 2,000 SAR 1 SE/1 PDiff 87.5 87 101 0.0038 1 16 Int/Ext Serial, LVDS 2 4.75, 5.25 2.7, 5.25 290 $23.00 61
ADS8411 16 2,000 SAR 1 SE 85 86 100 0.00375 2 16 Int P8/P16 2 4.75, 5.25 2.95, 5.25 175 $22.00 61
ADS8413 16 2,000 SAR 1 Diff 92 92 113 0.0038 1 16 Int/Ext Serial, LVDS 2 4.75, 5.25 2.7, 5.25 290 $24.05 61
ADS8412 16 2,000 SAR 1 Diff 88 90 100 0.00375 2 16 Int P8/P16 2 4.75, 5.25 2.95, 5.25 175 $23.05 61
ADS8405 16 1,250 SAR 1 SE/1 PDiff 85 86 105 0.003 –1, +1.5 16 Int/Ext P8/P16 2 4.75, 5.25 2.7, 5.25 155 $14.10 61
ADS8401 16 1,250 SAR 1 SE 85 86 100 0.00534 2 16 Int P8/P16 2 4.75, 5.25 2.95, 5.25 155 $12.55 61
ADS8402 16 1,250 SAR 1 Diff 88 90 100 0.00534 2 16 Int P8/P16 2 4.75, 5.25 2.95, 5.25 155 $13.15 61
ADS1601 16 1,250 Delta-Sigma 1 Diff 86 88 101 0.0015 0.25 16 Int/Ext Serial 2 4.75, 5.25 2.7, 5.25 350 $9.95 56
ADS8406 16 1,250 SAR 1 Diff 90 91 105 0.003 –1, +1.5 16 Int/Ext P8/P16 2 4.75, 5.25 2.7, 5.25 155 $14.70 61
ADS8330 16 1,000 SAR 2 SE 92 92 102 0.0027 1 16 Ext Serial, SPI 2 2.7, 5.5 1.65, 5.5 20 $11.85 60, 61
ADS8329 16 1,000 SAR 1 SE 92 88.5 102 0.0027 1 16 Ext Serial, SPI 2 2.7, 5.5 1.65, 5.5 20 $11.25 60, 61
ADS8472 16 1,000 SAR 1 Diff 95.2 95.3 123 0.00099 0.5 16 Int/Ext P8/P16 2 2.7, 5.5 1.65, 5.5 225 $17.50 60, 61
ADS8371 16 750 SAR 1 SE 87 87 100 0.0022 2 16 Ext P8/P16 2 4.75, 5.25 2.95, 5.25 110 $12.00 61
ADS8370 16 600 SAR 1 SE/1 PDiff 90 90 109 0.0015 –1, +1.5 16 Int/Ext Serial, SPI 2 4.75, 5.25 2.7, 5.25 110 $12.50 61
ADS8372 16 600 SAR 1 Diff 94 94 109 0.0011 1 16 Int/Ext Serial, SPI 2 4.75, 5.25 2.7, 5.25 110 $13.00 61
ADS8361 16 500 SAR 2 x 2 Diff 83 83 94 0.00375 1.5 14 Int/Ext Serial, SPI 2 4.75, 5.25 2.7, 5.5 150 $8.75 21, 61, 79
ADS8328 16 500 SAR 2 SE 88.5 91 101 0.00305 1 16 Ext Serial, SPI 2 2.7, 5.5 1.65, 5.5 10.6 $9.30 60, 61
ADS8327 16 500 SAR 1 SE 88.5 91 101 0.00305 1 16 Ext Serial, SPI 2 2.7, 5.5 1.65, 5.5 10.6 $8.50 60, 61
ADS8322 16 500 SAR 1 Diff 83 96 0.009 2 15 Int/Ext P8/P16 1 4.75, 5.25 4.75, 5.25 85 $7.10 61
ADS8323 16 500 SAR 1 Diff 83 94 0.009 2 15 Int/Ext P8/P16 1 4.75, 5.25 4.75, 5.25 85 $7.10 61
ADS8342 16 250 SAR 4 Diff 85 87 92 0.006 2 16 Ext P8/P16 2 4.75, 5.25 2.7, 5.5 200 $11.30 62
ADS8365 16 250 SAR 1 x 6 Diff 87 87 94 0.006 1.5 15 Int/Ext P16 1 4.75, 5.25 4.75, 5.25 190 $16.25 62, 78, 79
ADS8364 16 250 SAR 1 x 6 Diff 82.5 83 94 0.009 3 14 Int/Ext P16 1 4.75, 5.25 4.75, 5.25 413 $18.10 62, 78, 79
ADS8364 16 250 SAR 1 x 6 Diff 82.5 83 94 0.009 3 14 Int/Ext P16 1 4.75, 5.25 4.75, 5.25 413 $18.10 62, 78, 79
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
ADC Selection Guide (Continued)
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Quick Reference Selection Table
88
Res. Sample No. of Input SINAD SNR SFDR INL DNL No. of Analog Logic Power Refer to
Device (Bits) Rate (kSPS) Architecture Channels (dB) (dB) (dB) (%) (±LSB) NMC V
REF
Interface Supplies Supply Supply (mW) Price
*
Page
ADS8326 16 250 SAR 1 SE/1 Diff 91 91 108 0.0022 1 16 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 2.25 $5.00 62
ADS8515 16 250 SAR 1 SE 92 88 100 0.005 1 16 Int/Ext P8/P16 1 4.75, 5.25 4.75, 5.25 70 $10.95 61
ADS8509 16 250 SAR 1 SE 86 88 100 0.003 1 16 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 70 $12.95 59, 62
ADS8505 16 250 SAR 1 SE 86 88 100 0.0022 1 16 Int/Ext P8/P16 1 4.75, 5.25 4.75, 5.25 70 $12.95 11, 59, 62
ADS7811 16 250 SAR 1 SE 87 87 100 0.006 2 15 Int/Ext P16 2 4.75, 5.25 4.75, 5.25 200 $36.15 62
ADS7815 16 250 SAR 1 SE 84 84 100 0.006 2 15 Int/Ext P16 2 4.75, 5.25 4.75, 5.25 200 $21.30 62
ADS8317 16 200 SAR 1 Diff 88 88 108 0.0022 1 16 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 5.7 $5.90 62
TLC4541 16 200 SAR 1 SE 84.5 85 95 0.0045 2 16 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 17.5 $6.85 62
TLC4545 16 200 SAR 1 PDiff 84.5 85 95 0.0045 2 16 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 17.5 $6.85 62
ADS8344 16 100 SAR 8 SE/4 Diff 86 92 0.006 2 15 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 3.6 $8.00 62
ADS8345 16 100 SAR 8 SE/4 Diff 85 98 0.006 2 15 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 3.6 $8.00 62
ADS8341 16 100 SAR 4 SE/2 Diff 86 92 0.006 2 15 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 3.6 $7.40 62
ADS8343 16 100 SAR 4 SE/2 Diff 86 97 0.006 2 15 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 3.6 $7.45 62
ADS7805 16 100 SAR 1 SE 86 86 94 0.0045 1 16 Int/Ext P8/P16 1 4.75, 5.25 4.75, 5.25 81.5 $25.00 62
ADS7809 16 100 SAR 1 SE 88 88 100 0.0045 1 16 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 81.5 $25.00 62
ADS8320 16 100 SAR 1 SE/1 Diff 84 92 86 0.012 2 15 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 1.95 $5.15 62
ADS8321 16 100 SAR 1 PDiff 84 87 86 0.012 2 15 Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 5.5 $5.15 62
ADS8325 16 100 SAR 1 SE/1 Diff 91 91 108 0.006 2 16 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 2.25 $5.90 62
ADS1204 16 40 Modulator
1
4 SE/4 Diff 0.003 1 16 Int/Ext Bit Stream 1 4.75, 5.25 4.75, 5.25 60 $6.75 77, 79, 80
ADS7825 16 40 SAR 4 SE 83 86 90 0.003 1 16 Int/Ext Serial, SPI/P8 1 4.75, 5.25 4.75, 5.25 50 $29.55 62
ADS1205 16 40 Modulator
1
2 SE/2 Diff 88.2 88.9 98 0.005 1 16 Int/Ext Bit Stream 1 4.5, 5.5 2.7, 5.5 75 $3.95 77, 79, 80
ADS1208 16 40 Modulator
1
1 SE/1 Diff 81.5 82 93 0.012 1 16 Int/Ext Bit Stream 2 4.5, 5.5 2.7, 5.5 64 $2.95 77, 79, 80
ADS1202 16 40 Modulator
1
1 SE/1 Diff 0.018 1 16 Int/Ext Bit Stream 1 4.75, 5.25 4.75, 5.25 30 $2.50 77, 79, 80
ADS1203 16 40 Modulator
1
1 SE/1 Diff 0.003 1 16 Int/Ext Bit Stream 1 4.75, 5.25 4.75, 5.25 30 $2.70 77, 79, 80
ADS8507 16 40 SAR 1 SE 89.9 92 102 0.0022 1.5 16 Int/Ext Serial, SPI/P8 1 4.75, 5.25 4.75, 5.25 28 $13.00 59, 62
ADS7807 16 40 SAR 1 SE 88 88 100 0.0022 1.5 16 Int/Ext Serial, SPI/P8 1 4.75, 5.25 4.75, 5.25 28 $32.30 62
ADS8513 16 40 SAR 1 SE 89.9 92 102 0.003 1 16 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 30 $12.00 59, 62
ADS7813 16 40 SAR 1 SE 89 89 102 0.003 1 16 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 35 $24.70 62
MSC1202 16 1 Delta-Sigma 6 Diff/6 SE 0.0015 1 24 Int/Ext 8051, 4/8 Flash, IDAC 1 2.7, 5.25 3 $4.60 57
ADS1112 16 0.24 Delta-Sigma 3 SE/2 Diff 0.01 1 16 Int Serial, I
2
C 1 2.7, 5.5 2.7, 5.5 0.7 $2.65 55
ADS1110 16 0.24 Delta-Sigma 1 SE/1 Diff 0.01 1 16 Int Serial, I
2
C 1 2.7, 5.5 2.7, 5.5 0.7 $1.95 55
ADS1100 16 0.128 Delta-Sigma 1 SE/1 Diff 0.0125 1 16 Ext Serial, I
2
C 1 2.7, 5.5 2.7, 5.5 0.3 $1.80 55
ADS5547 14 210,000 Pipeline 1 Diff 73.3 85 0.5 14 Int/Ext DDR LVDS/CMOS, P8 1 3.0, 3.6 3.0, 3.6 1230 $82.50 66, 67
ADS5546 14 190,000 Pipeline 1 Diff 73.2 84 0.018 0.5 14 Int/Ext DDR LVDS/CMOS, P8 1 3.0, 3.6 3.0, 3.6 1230 $72.50 66, 67
ADS5545 14 170,000 Pipeline 1 Diff 73.5 85 0.018 0.5 14 Int/Ext DDR LVDS/CMOS, P8 1 3.0, 3.6 3.0, 3.6 1230 $62.50 66, 67
ADS5500 14 125,000 Pipeline 1 Diff 70 70.5 82 0.03
–0.9/+1.1
14 Int P14 1 3.0, 3.6 3.0, 3.6 780 $95.00 67
ADS5500-EP 14 125,000 Pipeline 1 Diff 70 70.5 82 0.03
–0.9/+1.1
14 Int P14 1 3.0, 3.6 3.0, 3.6 780 $190.00 88
ADS6245 14 125,000 Pipeline 2 Diff 72.3 73.2 83 0.03 2.5 14 Int/Ext Serial, LVDS 1 3.0, 3.6 3.0, 3.6 1000 $73.50 67
ADS6445 14 125,000 Pipeline 4 Diff 72.3 73.2 83 0.03 2.5 14 Int/Ext Serial, LVDS 1 3.0, 3.6 3.0, 3.6 1000 $132.30 65, 67
ADS5541 14 105,000 Pipeline 1 Diff 71 82 14 Int P14 1 3.0, 3.6 3.3 710 $75.00 67
1
The Data Rate is dependent on clock divided by the Oversampling Ratio.
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
ADC Selection Guide (Continued)
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Quick Reference Selection Table
89
Res. Sample No. of Input SINAD SNR SFDR INL DNL No. of Analog Logic Power Refer to
Device (Bits) Rate (kSPS) Architecture Channels (dB) (dB) (dB) (%) (±LSB) NMC V
REF
Interface Supplies Supply Supply (mW) Price
*
Page
ADS5424 14 105,000 Pipeline 1 Diff 74 74 93 0.009 –0.95, 1.5 14 Int P14 1 4.25, 5.25 3, 3.6 1900 $56.00 65, 67
ADS6244 14 105,000 Pipeline 2 Diff 72 73 81 0.03 2.5 14 Int/Ext Serial, LVDS 1 3.0, 3.6 3.0, 3.6 1000 $61.50 67
ADS6444 14 105,000 Pipeline 4 Diff 72 73 81 0.03 2.5 14 Int/Ext Serial, LVDS 1 3.0, 3.6 3.0, 3.6 1000 $110.70 67
ADS5542 14 80,000 Pipeline 1 Diff 72 85 14 Int P14 1 3.0, 3.6 3.3 670 $30.00 67
ADS5423 14 80,000 Pipeline 1 Diff 74 74 94 0.009 –0.95, 1.5 14 Int P14 1 4.75, 5.25 3, 3.6 1850 $40.00 65, 67
ADS5433 14 80,000 Pipeline 1 Diff 74 74 0.009 –0.95, 1.5 14 Int P14 1 4.75, 5.25 3, 3.6 1850 $48.00 65, 67
ADS6243 14 80,000 Pipeline 2 Diff 72 73.8 87.5 0.027 2 Int/Ext Serial, LVDS 1 3.0, 3.6 3.0, 3.6 1000 $37.50 67
ADS6443 14 80,000 Pipeline 4 Diff 72 73.8 87.5 0.027 2 14 Int/Ext Serial, LVDS 1 3.0, 3.6 3.0, 3.6 1000 $71.25 67
ADS5553 14 65,000 Pipeline 2 Diff 73.4 74 84 0.015 0.6 14 Int P14 1 3, 3.6 3, 3.6 890 $30.00 67
ADS5422 14 62,000 Pipeline 1 Diff 72 72 85 1 14 Int/Ext P14 2 4.75, 5.25 3, 5 1200 $30.45 67
ADS5421 14 40,000 Pipeline 1 Diff 75 75 83 1 14 Int/Ext P14 2 4.75, 5.25 3, 5 900 $20.15 67
ADS850 14 10,000 Pipeline 1 SE/1 Diff 75 76 85 0.03 1 14 Int/Ext P14 2 4.7, 5.3 2.7, 5.3 250 $16.80 67
THS1408 14 8,000 Pipeline 1 SE/1 Diff 70 72 80 0.03 1 Int/Ext P14 1 3.0, 3.6 3.0, 3.6 270 $14.85 67
THS1408-EP 14 8,000 Pipeline 1 SE/1 Diff 70 72 80 0.03 1 Int/Ext P14 1 3.0, 3.6 3.0, 3.6 270 $18.09 89
THS1403 14 3,000 Pipeline 1 SE/1 Diff 70 72 80 0.03 1 Int/Ext P14 1 3.0, 3.6 3.0, 3.6 270 $11.05 67
THS14F03 14 3,000 Pipeline 1 SE/1 Diff 70 72 80 0.015 1 Int/Ext P14 1 3.0, 3.6 3.0, 3.6 270 $12.60 67
THS1403-EP 14 3,000 Pipeline 1 SE/1 Diff 70 72 80 0.03 1 Int/Ext P14 1 3.0, 3.6 3.0, 3.6 270 $25.39 89
ADS7891 14 3,000 SAR 1 SE 78 77.5 88 0.009 +1.5/–1 14 Int P8/P14 2 4.75, 5.25 2.7, 5.25 85 $10.50 61
ADS7890 14 1,250 SAR 1 SE 77 77.5 100 0.009 +1.5/–1 14 Int Serial, SPI 2 4.75, 5.25 2.7, 5.25 45 $10.50 61
THS1401 14 1,000 Pipeline 1 SE/1 Diff 70 72 80 0.03 1 Int/Ext P14 1 3.0, 3.6 3.0, 3.6 270 $8.90 67
THS14F01 14 1,000 Pipeline 1 SE/1 Diff 70 72 80 0.015 1 Int/Ext P14 1 3.0, 3.6 3.0, 3.6 270 $9.65 67
THS1401-EP 14 1,000 Pipeline 1 SE/1 Diff 70 72 80 0.03 1 Int/Ext P14 1 3.0, 3.6 3.0, 3.6 270 $20.48 89
TLC3548 14 200 SAR 8 SE 81 81 97 0.006 1 14 Int/Ext Serial, SPI 2 4.5, 5.5 2.7, 5.5 20 $6.40 62
TLC3578 14 200 SAR 8 SE 79 80 83 0.006 1 14 Ext Serial, SPI 2 4.5, 5.5 2.7, 5.5 29 $8.65 62
TLC3544 14 200 SAR 4 SE 81 81 97 0.006 1 14 Int/Ext Serial, SPI 2 4.5, 5.5 2.7, 5.5 20 $6.00 62
TLC3574 14 200 SAR 4 SE 79 80 84 0.006 1 14 Ext Serial, SPI 2 4.5, 5.5 2.7, 5.5 29 $6.85 62
TLC3541 14 200 SAR 1 SE 81.5 82 95 0.006 1 14 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 17.5 $5.00 62
TLC3545 14 200 SAR 1 Diff 81.5 82 95 0.006 1 14 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 17.5 $5.00 62
ADS5546 14 190 Pipeline 1 Diff 72.5 73.2 84 14 Int/Ext P14 & LVDS 1 3.0, 3.6 3.0, 3.6 1130 $72.50 66, 67
ADS5545 14 170 Pipeline 1 Diff 73.5 85 14 Int/Ext P14 & LVDS 1 3.0, 3.6 3.0, 3.6 1100 $62.50 66, 67
ADS8324 14 50 SAR 1 Diff 78 78 85 0.012 2 14 Ext Serial, SPI 1 1.8, 3.6 1.8, 3.6 2.5 $4.15 62, 81
ADS7871 14 40 MUX SAR, PGA 8 SE/4 Diff 0.03 2 13 Int Serial, SPI 1 2.7, 5.25 2.7, 5.25 6 $5.00 62, 79
TLC7135 14 3 Dual-Slope 1 SE/1 Diff 0.005 4.5 BCD Ext MUX BCD 2 4.75, 5.25 4.75, 5.25 5 $1.95 55
ADS5444 13 250,000 Pipeline 1 SE/1 Diff 66.2 68.7 71 13 Int LVDS 2 4.75, 5.25 3.0, 3.6 2100 $95.00 66, 67
ADS5440 13 210,000 Pipeline 1 SE/1 Diff 68 69 76 0.026 1 13 Int LVDS 2 4.75, 5.25 3.0, 3.6 2100 $65.00 66, 67
ADS5463 12 500,000 Pipeline 1 Diff 65.2 84 0.03 1 12 Int/Ext LVDS, P12 2 4.75, 5.25 3.0, 3.6 2200 $125.00 66, 67
ADS5527 12 210,000 Pipeline 1 Diff 69 81 0.5 12 Int/Ext DDR LVDS/CMOS, P8 1 3.0, 3.6 3.0, 3.6 1100 $45.00 66, 67
ADS5525 12 170,000 Pipeline 1 Diff 70.5 84 0.072 0.5 12 Int/Ext DDR LVDS/CMOS, P8 1 3.0, 3.6 3.0, 3.6 1100 $35.00 66, 67
ADS5520 12 125,000 Pipeline 1 Diff 69 82 12 Int P12 1 3.0, 3.6 3.0, 3.6 740 $33.90 67
ADS6225 12 125,000 Pipeline 2 Diff 70 70.3 83 0.122 2.5 12 Int/Ext Serial, LVDS 1 3.0, 3.6 3.0, 3.6 1000 $41.25 67
ADS6425 12 125,000 Pipeline 4 Diff 70 70.3 83 0.122 2.5 12 Int/Ext Serial, LVDS 1 3.0, 3.6 3.0, 3.6 1650 $74.25 65, 67
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
ADC Selection Guide (Continued)
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Quick Reference Selection Table
90
Res. Sample No. of Input SINAD SNR SFDR INL DNL No. of Analog Logic Power Refer to
Device (Bits) Rate (kSPS) Architecture Channels (dB) (dB) (dB) (%) (±LSB) NMC V
REF
Interface Supplies Supply Supply (mW) Price
*
Page
ADS5521 12 105,000 Pipeline 1 Diff 69 85 12 Int P12 1 3.0, 3.6 3.0, 3.6 700 $29.90 67
ADS6224 12 105,000 Pipeline 2 Diff 70 70.6 81 0.122 2.5 12 Int/Ext Serial/LVDS 1 3.0, 3.6 3.0, 3.6 900 $34.50 67
ADS6424 12 105,000 Pipeline 4 Diff 70 70.6 81 0.122 2.5 12 Int/Ext Serial/LVDS 1 3.0, 3.6 3.0, 3.6 1350 $62.10 67
ADS5410 12 80,000 Pipeline 1SE/1 Diff 66 65 76 0.048 1 14 Int/Ext P12 2 3, 3.6 1.6, 2 360 $19.00 67
ADS809 12 80,000 Pipeline 1 SE/1 Diff 64 63 67 0.144 1.7 12 Int/Ext P12 2 4.75, 5.25 3, 5 905 $24.95 67
ADS6223 12 125,000 Pipeline 2 Diff 70.9 70.9 87 0.11 2 12 Int/Ext Serial/LVDS 1 3.0, 3.6 3.0, 3.6 760 $25.05 67
ADS6423 12 125,000 Pipeline 4 Diff 70.9 70.9 87 0.11 2 12 Int/Ext Serial/LVDS 1 3.0, 3.6 3.0, 3.6 1180 $47.60 67
ADS5522 12 80,000 Piepline 1 Diff 70 82 12 Int P12 1 3.0, 3.6 3.3 660 $16.70 67
ADS5273 12 70,000 Pipeline 8 Diff 70.8 71 90 0.072
+1.2/–0.99
12 Int/Ext LVDS 1 3.0, 3.6 3.3 1003 $121.00 67
ADS808 12 70,000 Pipeline 1 SE/1 Diff 64 64 68 0.168 1.7 12 Int/Ext P12 2 4.75, 5.25 3, 5 720 $19.50 67
ADS5272 12 65,000 Pipeline 8 Diff 71 71.1 89 0.060 +1/–0.95 12 Int/Ext LVDS 1 3.0, 3.6 3.3 984 $65.00 67
ADS5242 12 65,000 Pipeline 4 Diff 70.8 71 85 0.060 +1/–0.95 12 Int/Ext LVDS 1 3.0, 3.6 3.3 660 $36.00 67
ADS5232 12 65,000 Pipeline 2 Diff 69 69.5 85 0.060 0.9 12 Int/Ext P12 1 3.0, 3.6 3.0, 3.6 340 $18.15 67
ADS5221 12 65,000 Pipeline 1 SE/1 Diff 69 70 90 0.036 1 12 Int/Ext P12 1 3.0, 3.6 2.5, 3.3 285 $13.95 67
ADS5413 12 65,000 Pipeline 1 Diff 67.6 68.5 77.5 0.048 1 12 Int/Ext P12 1 3.0, 3.6 3.3 400 $15.50 67
ADS807 12 53,000 Pipeline 1 SE/1 Diff 69 69 82 0.096 1 12 Int/Ext P12 2 4.75, 5.25 3.0, 5.0 335 $11.30 67
ADS5271 12 50,000 Pipeline 8 Diff 70 70.5 85 0.048 0.9 12 Int/Ext LVDS 1 3.0, 3.6 3.3 927 $50.00 67
ADS2807 12 50,000 Pipeline 2 SE/2 Diff 68 65 70 0.120 1 12 Int/Ext P12 2 4.75, 5.25 3, 5 720 $18.05 67
ADS5270 12 40,000 Pipeline 8 Diff 70 70.5 87 0.048 0.9 12 Int/Ext LVDS 1 3.0, 3.6 3.3 888 $45.00 68
ADS5240 12 40,000 Pipeline 4 Diff 70 70.5 85 0.048 0.9 12 Int/Ext LVDS 1 3.0, 3.6 3.3 584 $25.00 68
ADS5231 12 40,000 Pipeline 2 Diff 70 70.7 86 0.048 0.9 12 Int/Ext Dual P12 1 3.0, 3.6 3.3 285 $11.75 68
ADS5220 12 40,000 Pipeline 1 SE/1 Diff 69 70 90 0.036 1 12 Int/Ext P12 1 3.0, 3.6 2.5, 3.3 195 $9.85 67
ADS800 12 40,000 Pipeline 1 SE/1 Diff 64 62 61 1 12 Int/Ext P12 1 4.75, 5.25 4.75, 5.25 390 $30.85 67
ADS2806 12 32,000 Pipeline 2 SE/2 Diff 69 66 73 0.096 1 12 Int/Ext P12 2 4.75, 5.25 3, 5 430 $14.10 67
THS1230 12 30,000 Pipeline 1 SE/1 Diff 67.4 67.7 74.6 0.060 1 12 Int/Ext P12 1 3.0, 3.6 3.0, 3.6 168 $10.50 68
ADS801 12 25,000 Pipeline 1 SE/1 Diff 66 64 61 1 12 Int/Ext P12 1 4.75, 5.25 4.75, 5.25 270 $12.55 68
ADS805 12 20,000 Pipeline 1 SE/1 Diff 66 68 74 0.048 0.75 12 Int/Ext P12 2 4.75, 5.25 3, 5 300 $9.90 68
THS1215 12 15,000 Pipeline 1 SE/1 Diff 68.6 68.9 81.7 0.036 0.9 12 Int/Ext P12 1 3.0, 3.6 3.0, 3.6 148 $9.85 68
ADS804 12 10,000 Pipeline 1 SE/1 Diff 68 69 80 0.048 0.75 12 Int/Ext P12 2 4.7, 5.3 3, 5 180 $9.20 68
ADS802 12 10,000 Pipeline 1 SE/1 Diff 66 66 66 0.066 1 12 Int/Ext P12 1 4.75, 5.25 4.75, 5.25 260 $12.60 68
THS12082 12 8,000 Pipeline 2 SE/1 Diff 65 69 71 0.036 1 12 Int/Ext P12 2 4.75, 5.25 3, 5.25 186 $8.40 68
THS1209 12 8,000 Pipeline 2 SE/1 Diff 65 69 71 0.036 1 12 Int/Ext P12 2 4.75, 5.25 4.75, 5.25 186 $7.90 68
THS1206 12 6,000 Pipeline 4 SE/2 Diff 65 69 71 0.043 1 12 Int/Ext P12 2 4.75, 5.25 3, 5.25 186 $7.80 68
THS1207 12 6,000 Pipeline 4 SE/2 Diff 64 69 71 0.036 1 12 Int/Ext P12 2 4.75, 5.25 4.75, 5.25 186 $7.25 68
THS1206-EP 12 6,000 Pipeline 4 SE/2 Diff 65 69 71 0.043 1 12 Int/Ext P12 2 4.75,5.25 3,5.25 186 $17.61 90
ADS803 12 5,000 Pipeline 1 SE/1 Diff 68 69 82 0.018 2 12 Int/Ext P12 2 4.7, 5.3 4.7, 5.3 115 $7.03 68
ADS7881 12 4,000 SAR 1 SE 71.5 71.5 90 0.024 1 12 Int P8/P12 2 4.75, 5.25 2.7, 5.25 95 $7.35 61
ADS7863 12 2,000 SAR 2 x 2 Diff 71 TBD TBD 0.024 1 12 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 50 $4.90 61, 79
ADS7869 12 1,000 SAR 12 Diff 0.048 2 11 Int/Ext Serial, SPI, P12 3 3.3, 5.5 2.7, 5.5 175 $14.60 61, 77, 79
ADS7886 12 1,000 SAR 1 SE 71.2 71.5 85.5 0.030 1 12 Ext Serial, SPI 1 2.5, 5.75 2.5, 5.75 7.5 $1.70 61
ADS7810 12 800 SAR 1 SE 71 71 82 0.018 1 12 Int/Ext P12 2 4.75, 5.25 4.75, 5.25 225 $27.80 61, 62
ADC Selection Guide (Continued)
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Quick Reference Selection Table
91
Res. Sample No. of Input SINAD SNR SFDR INL DNL No. of Analog Logic Power Refer to
Device (Bits) Rate (kSPS) Architecture Channels (dB) (dB) (dB) (%) (±LSB) NMC V
REF
Interface Supplies Supply Supply (mW) Price
*
Page
ADS7852 12 500 SAR 8 SE 70 72 74 0.024 1 12 Int/Ext P12 1 4.75, 5.25 4.75, 5.25 13 $3.40 61
ADS7864 12 500 SAR 3 x 2 Diff 71 71 78 0.024 1 12 Int/Ext P12 1 4.75, 5.25 4.75, 5.25 52.5 $6.65 61, 79
ADS7861 12 500 SAR 2 x 2 Diff 70 71 72 0.024 1 12 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 25 $4.05 61, 79
ADS7862 12 500 SAR 2 x 2 Diff 71 71 78 0.024 1 12 Int/Ext P12 1 4.75, 5.25 4.75, 5.25 25 $5.70 61, 79
ADS7818 12 500 SAR 1 PDiff 70 72 78 0.024 1 12 Int Serial, SPI 1 4.75, 5.25 4.75, 5.25 11 $2.50 61
ADS7834 12 500 SAR 1 PDiff 70 72 78 0.024 1 12 Int Serial, SPI 1 4.75, 5.25 4.75, 5.25 11 $2.45 61
ADS7835 12 500 SAR 1 SE 72 72 78 0.024 1 12 Int Serial, SPI 1 4.75, 5.25 4.75, 5.25 17.5 $2.75 61, 62
TLC2558 12 400 SAR 8 SE 71 84 0.024 1 12 Int/Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 9.5 $5.30 62
TLC2554 12 400 SAR 4 SE 71 84 0.024 1 12 Int/Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 9.5 $5.30 62
TLC2552 12 400 SAR 2 SE 72 84 0.024 1 12 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 15 $3.95 62
TLC2551 12 400 SAR 1 SE 72 84 0.024 1 12 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 15 $3.95 62
TLC2555 12 400 SAR 1 Diff 72 84 0.024 1 12 Int Serial, SPI 1 4.5, 5.5 4.5, 5.5 15 $3.95 91
ADS7800 12 333 SAR 1 SE 72 71 77 0.012 0.75 12 Int P8/P12 3 4.75, 5.25 4.75, 5.25 135 $30.50 62
ADS8504 12 250 SAR 1 SE 72 70 80 0.011 0.45 12 Int/Ext P8/P12 1 4.75, 5.25 4.75, 5.25 70 $10.50 59, 62
ADS8508 12 250 SAR 1 SE 73 73 90 0.011 0.45 12 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 70 $10.50 59, 62
ADS7844 12 200 SAR 8 SE/4 Diff 72 72 78 0.024 1 12 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 0.84 $2.90 62
TLC2578 12 200 SAR 8 SE 79 80 84 0.024 0.5 12 Ext Serial, SPI 2 4.75, 5.5 2.7, 5.5 29 $5.80 62
TLV2548 12 200 SAR 8 SE 70 84 0.024 1 12 Int/Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 3.3 $4.85 63
TLV2548M 12 200 SAR 8 SE 71 75 0.029 1 12 Int/Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 3.3 $151.89 91
ADS7841 12 200 SAR 4 SE/2 Diff 72 72 79 0.024 1 12 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 0.84 $2.50 63
ADS7842 12 200 SAR 4 SE 72 72 79 0.024 1 12 Ext P12 1 2.7, 5.25 2.7, 5.25 0.84 $3.10 63
TLC2574 12 200 SAR 4 SE 79 80 84 0.024 0.5 12 Ext Serial, SPI 2 4.75, 5.5 2.7, 5.5 29 $5.30 62
TLV2544 12 200 SAR 4 SE 70 84 0.024 1 12 Int/Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 3.3 $4.20 63
TLV2542 12 200 SAR 2 SE 72 84 0.024 1 12 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 2.8 $3.85 63
AMC7823 12 200 SAR, DAS 1x8 SE I/O DAS 74 74 0.024 1 12 Int/Ext Serial, SPI 2 2.7, 5.5 2.7, 5.5 100 $9.75 62, 77-79
TLV2553 12 200 SAR 11 SE 0.024 1 12 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 2.43 $3.40 63
TLV2556 12 200 SAR 11 SE 0.024 1 12 Int/Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 2.43 $3.55 63
ADS7866 12 200 SAR 1 SE 70 71 0.024 1 12 Ext Serial, SPI 1 1.2, 3.6 1.2, 3.6 0.25 $1.85 63
TLV2541 12 200 SAR 1 SE 72 84 0.024 1 12 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 2.8 $3.85 63
ADS7816 12 200 SAR 1 PDiff 72 72 86 0.024 0.75 12 Ext Serial, SPI 1 4.5, 5.25 4.75, 5.25 1.9 $1.95 63
ADS7817 12 200 SAR 1 Diff 71 71 86 0.024 1 12 Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 2.3 $1.95 63
TLV2545 12 200 SAR 1 Diff 72 84 0.024 1 12 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 2.8 $3.85 63
ADS7822 12 200 SAR 1 Diff 71 86 0.018 0.75 12 Ext Serial, SPI 1 2.7, 5.25 2.7, 5.25 0.6 $1.55 63
ADS7829 12 125 SAR 1 Diff 71 86 0.018 0.75 12 Ext Serial, SPI 1 2.7, 5.25 2.7. 5.25 0.6 $1.50 63
AMC7820 12 100 SAR, PGA 1x8 SE I/O 72 0.024 1 12 Int Serial, SPI 2 4.75, 5.25 2.7, 5.25 40 $3.75 63, 79
ADS7804 12 100 SAR 1 SE 72 70 80 0.011 0.45 12 Int/Ext P8/P12 1 4.75, 5.25 4.75, 5.25 81.5 $16.55 62
ADS8506 12 80 SAR 1SE 73 0.011 1 12 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 24 $8.50 59, 62
ADS7808 12 100 SAR 1 SE 73 73 90 0.011 0.45 12 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 81.5 $12.80 62
TLV2543 12 66 SAR 11 SE 0.024 1 12 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 3.3 $4.45 63
ADS7828 12 50 SAR 8 SE/4 Diff 71 72 86 0.024 1 12 Int/Ext Serial, I
2
C 1 2.7, 5.25 2.7, 5.25 0.675 $3.35 63
ADS7870 12 50 MUX SAR, PGA 8 SE 72 0.06 12 Int Serial, SPI 1 2.7, 5.25 2.7, 5.25 4.6 $4.15 63, 79
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
ADC Selection Guide (Continued)
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Quick Reference Selection Table
92
Res. Sample No. of Input SINAD SNR SFDR INL DNL No. of Analog Logic Power Refer to
Device (Bits) Rate (kSPS) Architecture Channels (dB) (dB) (dB) (%) (±LSB) NMC V
REF
Interface Supplies Supply Supply (mW) Price
*
Page
ADS7823 12 50 SAR 1 SE 71 72 86 0.024 1 12 Ext Serial, I
2
C 1 2.7, 5.25 2.7, 5.25 0.75 $2.85 63
ADS7824 12 40 SAR 4 SE 73 73 90 0.012 0.5 12 Int/Ext Serial, SPI/P8 1 4.75, 5.25 4.75, 5.25 50 $13.10 62
ADS7806 12 40 SAR 1 SE 73 73 90 0.011 0.45 12 Int/Ext Serial, SPI/P8 1 4.75, 5.25 4.75, 5.25 28 $15.05 62
ADS7812 12 40 SAR 1 SE 74 74 98 0.012 0.5 12 Int/Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 35 $11.80 62
ADS1286 12 37 SAR 1 PDiff 72 90 0.024 0.75 12 Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 1 $2.80 63
ADS1000 12 0.128 Delta-Sigma 1 SE/1 Diff 0.001 1 12 Ext Serial, I
2
C 1 4.75, 5.25 4.75, 5.25 0.3 $0.99 55
ADS5510 11 125,000 Pipeline 1 Diff 66.8 83 0.24 1.1 11 Int/Ext P11 1 3.0, 3.6 3.0, 3.6 780 $14.20 68
ADS5411 11 105,000 Pipeline 1 Diff 66.4 90 0.012 0.5 11 Int/Ext P11 1 4.75, 5.25 4.75, 5.25 1900 $25.50 68
ADS5413-11 11 65,000 Pipeline 1 Diff 65 65 77 0.048 0.75 11 Int/Ext Serial 2 3.0, 3.6 1.6, 2.0 400 $14.75 68
ADS828 10 75,000 Pipeline 1 SE/1 Diff 57 57 68 0.29 1 10 Int/Ext P10 2 4.75, 5.25 3.0,5.0 340 $8.70 68
ADS5277 10 65,000 Pipeline 8 Diff 61.7 61.7 80 0.2 0.9 10 Int/Ext P10 1 3.0, 3.6 3.3 911 $40.00 68
ADS5122 10 65,000 Pipeline 8 Diff 58 59 72 0.24 1 10 Int/Ext P10 2 1.65, 2.0 1.65, 3.6 733 $42.85 68
ADS5102 10 65,000 Pipeline 1 Diff 58 57 71 0.24 1 10 Int/Ext P10 1 1.65, 2.0 1.65, 2.0 160 $7.10 68
ADS826/823 10 60,000 Pipeline 1 SE/1 Diff 58 59/60 73 0.24 1 10 Int/Ext P10 2 4.75, 5.25 3.0,5.0 295 $8.40 92
ADS5121 10 40,000 Pipeline 8 Diff 59 60 74 0.15 1 10 Int/Ext P10 2 1.65, 2.0 1.65, 3.6 500 $38.85 68
ADS5120 10 40,000 Pipeline 8 Diff 57 58 72 0.15 1 10 Int/Ext P10 1 1.65, 2.0 1.65, 2.0 794 $36.15 68
ADS5204 10 40,000 Pipeline 2 SE/2 Diff, PGA 60 60.5 73 0.15 1 10 Int/Ext P10 1 3.0, 3.6 3.0, 3.6 275 $11.05 68
ADS5203 10 40,000 Pipeline 2 SE/2 Diff 60 60.5 73 0.15 1 10 Int/Ext P10 1 3.0, 3.6 3.0, 3.6 240 $9.65 68
ADS822/825 10 40,000 Pipeline 1 SE/1 Diff 59 60 65 0.24 1 10 Int/Ext P10 2 4.75, 5.25 3.0,5.0 200 $5.25 92
ADS821 10 40,000 Pipeline 1 SE/1 Diff 58 58 62 0.24 1 10 Int/Ext P10 1 4.75, 5.25 4.75, 5.25 390 $13.05 68
THS1040 10 40,000 Pipeline 1 SE/1 Diff 60 57 70 0.15 0.9 10 Int/Ext P10 2 3.0, 3.6 3.0, 3.6 100 $5.10 68
THS1041 10 40,000 Pipeline 1 SE/1 Diff 60 57 70 0.15 1 10 Int/Ext P10 2 3.0, 3.6 3.0, 3.6 103 $5.45 68
ADS5103 10 40,000 Pipeline 1 Diff 58 58 66 0.15 0.8 10 Int/Ext P10 1 1.65, 2.0 1.65, 2.0 105 $5.25 68
THS1030 10 30,000 Pipeline 1 SE/1 Diff 48.6 49.4 53 0.24 1 10 Int/Ext P10 2 3.0, 5.5 3.0, 5.5 150 $3.75 68
THS1031 10 30,000 Pipeline 1 SE/1 Diff 56 49.3 52.4 0.24 1 10 Int/Ext P10 2 3.0, 5.5 3.0, 5.5 160 $4.10 68
ADS820 10 20,000 Pipeline 1 SE/1 Diff 60 60 62 0.24 1 10 Int/Ext P10 1 4.75, 5.25 4.75, 5.25 200 $6.75 68
ADS900 10 20,000 Pipeline 1 SE/1 Diff 48 49 53 1 10 Int P10 1 2.7, 3.7 3.0, 3.0 49 $3.55 68
ADS901 10 20,000 Pipeline 1 SE/1 Diff 50 53 49 1 10 Ext P10 1 2.7, 3.7 3.0, 3.0 54 $3.40 68
THS10082 10 8,000 Pipeline 2 SE/1 Diff 59 61 65 0.1 1 10 Int/Ext P10 2 4.75, 5.25 3.0, 5.25 186 $3.70 68
THS1009 10 8,000 Pipeline 2 SE/1 Diff 59 61 65 0.1 1 10 Int/Ext P10 2 4.75, 5.25 4.75, 5.25 186 $3.20 68
THS10064 10 6,000 Pipeline 4 SE/2 Diff 59 61 65 0.1 1 10 Int/Ext P10 2 4.75, 5.25 3.0, 5.25 186 $4.15 68
THS1007 10 6,000 Pipeline 4 SE/2 Diff 59 61 65 0.1 1 10 Int/Ext P10 2 4.75, 5.25 4.75, 5.25 186 $3.70 68
TLV1562 10 2,000 Pipeline 4 SE/2 Diff 58 58 70.3 0.15 1.5 10 Int/Ext P10 2 2.7, 5.5 2.7, 5.5 15 $4.15 68
TLV1570 10 1,250 SAR 8 SE 60 61 63 0.1 1 10 Int/Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 9 $3.80 61
TLV1578 10 1,250 SAR 8 SE 60 60 63 0.1 1 10 Ext P10 1 2.7, 5.5 2.7, 5.5 12 $3.85 61
TLV1571 10 1,250 SAR 1 SE 60 60 63 0.1 1 10 Ext P10 1 2.7, 5.5 2.7, 5.5 12 $3.70 61
TLV1572 10 1,250 SAR 1 SE 60 62 0.1 1 10 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 8.1 $3.30 61
ADS7887 10 1,250 SAR 1 SE 61 60 0.05 1 10 Ext Serial, SPI 1 2.5, 5.25 2.5, 5.25 8 $1.50 61
TLC1518 10 400 SAR 8 SE/7 Diff 60 82 0.012 0.5 10 Int/Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 10 $3.45 63
TLC1514 10 400 SAR 4 SE/3 Diff 60 82 0.012 0.5 10 Int/Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 10 $2.90 63
TLV1508 10 200 SAR 8 SE 60 83 0.05 0.5 10 Int/Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 3.3 $3.15 63
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
ADC Selection Guide (Continued)
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Quick Reference Selection Table
93
Res. Sample No. of Input SINAD SNR SFDR INL DNL No. of Analog Logic Power Refer to
Device (Bits) Rate (kSPS) Architecture Channels (dB) (dB) (dB) (%) (±LSB) NMC V
REF
Interface Supplies Supply Supply (mW) Price
*
Page
TLV1504 10 200 SAR 4 SE 60 83 0.05 0.05 10 Int/Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 3.3 $2.65 63
ADS7867 10 200 SAR 1 SE 61 60 0.05 ±1 10 Ext Serial, SPI 1 1.2, 3.6 1.2, 3.6 0.25 $1.40 63
ADS7826 10 200 SAR 1 Diff 62 0.0048 1 10 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 0.6 $1.25 63
TLC1550 10 164 SAR 1 SE 0.05 0.05 10 Ext P10 1 4.75, 5.5 4.75, 5.5 10 $3.90 63
TLC1551 10 164 SAR 1 SE 0.1 1 10 Ext P10 1 4.75, 5.5 4.75, 5.5 10 $3.35 63
TLV1548 10 85 SAR 8 SE 0.1 1 10 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 1.05 $2.30 63
TLV1548-EP 10 85 SAR 8 SE 0.1 1 10 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 1.05 $4.36 93
TLV1544 10 85 SAR 4 SE 0.1 1 10 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 1.05 $1.95 63
TLC1542 10 38 SAR 11 SE 0.05 0.05 10 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 4 $2.50 63
TLC1543 10 38 SAR 11 SE 0.1 1 10 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 4 $1.90 63
TLC1543-EP 10 38 SAR 11 SE 0.1 1 10 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 4 $3.89 93
TLC1549 10 38 SAR 1 SE 0.1 1 10 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 4 $1.71 63
TLC1541 10 32 SAR 11 SE 0.1 1 10 Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 6 $3.20 63
ADS831 8 80,000 Pipeline 1 SE/1 Diff 49 49 65 0.78 1 8 Int/Ext P8 2 4.75, 5.25 3.0, 5.0 310 $3.15 68
ADS830 8 60,000 Pipeline 1 SE/1 Diff 48 49.5 65 0.58 1 8 Int/Ext P8 2 4.75, 5.25 3.0, 5.0 215 $2.75 68
THS0842 8 40,000 Pipeline 2 SE/2 Diff 42.7 52 0.86 2 8 Int/Ext P8 1 3.0, 3.6 3.0, 3.6 320 $5.05 68
TLC5540 8 40,000 Flash 1 SE 44 42 0.39 1 Int/Ext P8 1 4.75, 5.25 4.75, 5.25 85 $2.40 68
TLV5535 8 35,000 Pipeline 1 SE 46 46.5 58 0.94 1.3 Int/Ext P8 1 3.0, 3.6 3.0, 3.6 106 $2.40 68
ADS931 8 30,000 Pipeline 1 SE/1 Diff 45 48 49 0.98 1 8 Ext P8 2 2.7, 5.25 3.0, 5.0 154 $2.20 68
ADS930 8 30,000 Pipeline 1 SE/1 Diff 45 46 50 0.98 1 8 Int P8 2 2.7, 5.25 3.0, 5.0 168 $2.30 68
TLC5510 8 20,000 Pipeline 1 SE 46 42 0.39 0.75 Ext P8 1 4.75, 5.25 4.75, 5.25 127.5 $2.35 68
TLC5510A 8 20,000 Pipeline 1 SE 46 42 0.39 0.75 Ext P8 1 4.75, 5.25 4.75, 5.25 150 $2.35 68
TLV571 8 1,250 SAR 1 SE 49 49 51 0.5 0.5 8 Ext P8 2 2.7, 5.25 2.7, 5.25 12 $2.35 61
ADS7888 8 1,250 SAR 1 SE 49.5 65 0.3 0.3 8 Ext Serial, SPI 1 2.5, 5.25 2.5, 5.25 8 $0.85 61
TLC0820A 8 392 SAR 1 SE 0.2 0.5 8 Ext P8 1 4.5, 8 4.5, 8 37.5 $1.90 63
ADS7827 8 250 SAR 1 Diff 48 0.2 1 8 Ext Serial, SPI 1 2.7, 5.5 2.7, 5.5 0.6 $1.00 63
ADS7868 8 200 SAR 1 SE/1PDiff 50 49 66 0.5 0.5 8 Ext Serial, SPI 1 1.2, 3.6 1.2, 3.6 0.25 $0.80 63
TLC545 8 76 SAR 19 SE 0.2 0.5 8 Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 6 $3.10 63
ADS7830 8 75 SAR 8 SE/4 Diff 50 50 68 0.19 0.5 8 Int/Ext Serial, I
2
C 1 2.7, 5.25 2.7, 5.25 0.675 $1.40 63
TLV0831 8 49 SAR 1 SE 0.2 0.5 8 Ext Serial, SPI 1 2.7, 3.6 2.7, 3.6 0.66 $1.40 63
TLC548 8 45.5 SAR 1 SE 0.2 0.5 8 Ext Serial, SPI 1 3.0, 6.0 3.0, 6.0 9 $1.20 63
TLV0832 8 44.7 SAR 2 SE/1 Diff 0.2 0.5 8 Ext Serial, SPI 1 2.7, 3.6 2.7, 3.6 5 $1.40 63
TLV0834 8 41 SAR 4 SE/2 Diff 0.2 0.5 8 Ext Serial, SPI 1 2.7, 3.6 2.7, 3.6 0.66 $1.45 63
TLC541 8 40 SAR 11 SE 0.2 0.5 8 Ext Serial, SPI 1 4.75, 5.5 4.5, 5.5 6 $1.50 63
TLC549 8 40 SAR 1 SE 0.2 0.5 8 Ext Serial, SPI 1 3.0, 6.0 3.0, 6.0 9 $0.95 63
TLV0838 8 37.9 SAR 8 SE/4 Diff 0.2 0.5 8 Ext Serial, SPI 1 2.7, 3.6 2.7, 3.6 0.66 $1.45 63
TLC0831 8 31 SAR 1 Diff 0.2 0.4 8 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 3 $1.40 63
TLC542 8 25 SAR 11 SE 0.2 0.5 8 Ext Serial, SPI 1 4.75, 5.25 4.75, 5.25 6 $1.50 63
TLC0832 8 22 SAR 2 SE/1 Diff 0.2 0.4 8 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 12.5 $1.40 63
TLC0838 8 20 SAR 8 SE/4 Diff 0.2 0.4 8 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 3 $1.45 63
TLC0834 8 20 SAR 4 SE/2 Diff 0.2 0.4 8 Ext Serial, SPI 1 4.5, 5.5 4.5, 5.5 3 $1.45 63
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
ADC Selection Guide (Continued)
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Quick Reference Selection Table
94
Settling Number of Update Supply Power
Resolution Time Output Rate Output DNL INL Monotonic Voltage Consumption Refer to
Device (Bits) (µs) Architecture Channels (MSPS) (V) (±LSB) (%) (Bits) Interface V
REF
(V) (mW) (Typ) Price* Page
DAC1220 20 15000 Delta-Sigma 1 +5 1 0.0015 20 Serial, SPI Ext + 4.75 to 5.25 2.5 $6.33 69
DAC5687 16 0.0104 I-Steering 2 500 20mA 4 0.006 2 x P16 Int/Ext 1.8/3.3 700 $22.50 76
DAC5687-EP 16 0.0104 I-Steering 2 500 20mA 5 0.006 2 x P16 Int/Ext 1.8/3.3 700 $43.99 94
DAC5686 16 0.012 I-Steering 2 500 9 0.018 2 x P16 Int/Ext 1.8/3.3 400 $19.75 76
DAC8822 16 0.5 R-2R MDAC 2 ±V
REF
(Req. OPA) 1 0.0015 16 P16 Ext 2.75 to 5.25 0.027 $8.65 71, 72
DAC8812 16 0.5 R-2R MDAC 2 ±V
REF
(Req. OPA) 1 0.0015 16 Serial, SPI Ext 2.75 to 5.25 0.027 $8.40 71, 72
DAC8811 16 0.5 R-2R MDAC 1 ±V
REF
(Req. OPA) 1 0.0015 16 Serial, SPI Ext 2.75 to 5.25 0.027 $7.15 42, 71, 72
DAC8820 16 0.5 R-2R MDAC 1 ±V
REF
(Req. OPA) 1 0.0015 16 P16 Ext 2.75 to 5.25 0.027 $8.50 71, 72
DAC8580 16 0.65 String 1 ±V
REF
1 0.0987 16 Serial, SPI Ext 2.75 to 5.25 200 $3.00 72
DAC8581 16 0.65 String 1 ±V
REF
1 0.0987 16 Serial, SPI Ext 2.75 to 5.25 200 $3.00 72, 94
DAC8814 16 1 R-2R MDAC 4 ±V
REF
(Req. OPA) 1 0.0015 16 Serial, SPI Ext 2.75 to 5.25 0.027 $16.95 71, 72
DAC8830 16 1 R-2R 1 +V
REF
1 0.0015 16 Serial, SPI Ext 2.75 to 5.25 0.015 $7.95 70, 72
DAC8830-EP 16 1 R-2R 1 +V
REF
1 0.0015 16 Serial, SPI Ext 2.75 to 5.25 0.015 $17.11 94
DAC8831 16 1 R-2R 1 ±V
REF
1 0.0015 16 Serial, SPI Ext 2.75 to 5.25 0.015 $7.95 70, 72
DAC8831-EP 16 1 R-2R 1 ±V
REF
1 0.004 16 Serial, SPI Ext 2.75 to 5.25 0.015 $17.11 94
DAC8832 16 1 R-2R 1 ±V
REF
1 0.0015 16 Serial, SPI Ext 2.75 to 5.25 0.015 $7.95 70, 72
DAC8881 16 2 R-2R 1 +V
REF
(5) 1 0.0015 16 Serial, SPI Ext 2.75 to 5.25 60 $8.00 72
DAC8871 16 5 R-2R 1 ±10 1 0.0015 16 Serial, SPI Ext ± or + 14.25 to 15.75 0.015 $8.00 70, 72
DAC7731 16 5 R-2R 1 +V
REF
(+10, ±10) 1 0.0015 16 Serial, SPI Int/Ext ± 14.25 to 15.75 100 $8.20 72
DAC7741 16 5 R-2R 1 ±10 1 0.0015 16 P16 Int/Ext ± 14.25 to 15.75 100 $8.30 72
DAC7742 16 5 R-2R 1 +V
REF
(+10, ±10) 1 0.0015 16 P16 Int/Ext ± 14.25 to 15.75 100 $8.70 72
DAC8554 16 10 String 4 +V
REF
1 0.0122 16 Serial, SPI Ext 2.75 to 5.25 4 $10.40 71, 73
DAC8555 16 10 String 4 +V
REF
1 0.0122 16 Serial, SPI Ext 2.75 to 5.25 4 $10.40 71, 73
DAC8544 16 10 String 4 +V
REF
1 0.0987 16 P16 Ext 2.75 to 5.25 2 $9.75 73
DAC7634 16 10 R-2R 4 +V
REF
, ±V
REF
2 0.0015 15 Serial, SPI Ext ± or + 4.75 to 5.25 7.5 $19.95 72
DAC7644 16 10 R-2R 4 +V
REF
, ±V
REF
2 0.0015 15 P16 Ext ± or + 4.75 to 5.25 7.5 $19.95 72
DAC7734 16 10 R-2R 4 +V
REF
, ±V
REF
1 0.0015 16 Serial, SPI Ext ± or + 14.25 to 15.75 50 $31.45 72
DAC7744 16 10 R-2R 4 +V
REF
, ±V
REF
1 0.0015 16 P16 Ext ± or + 14.25 to 15.75 50 $31.45 72
DAC8534 16 10 String 4 +V
REF
1 0.0987 16 Serial, SPI Ext + 2.7 to 5.5 2.7 $8.75 73
DAC8574 16 10 String 4 +V
REF
1 0.0987 16 Serial, I
2
C Ext + 2.7 to 5.5 2.7 $10.25 73
DAC8552 16 10 String 2 +V
REF
1 0.012 16 Serial, SPI Ext 2.75 to 5.25 2 $5.45 71, 73
DAC7632 16 10 R-2R 2 +V
REF
, ±V
REF
2 0.0015 15 Serial, SPI Ext ± or + 4.75 to 5.25 2.5 $10.45 72
DAC7642 16 10 R-2R 2 +V
REF
, ±
REF
2 0.0015 15 P16 Ext ± or + 4.75 to 5.25 2.5 $10.55 72
DAC7643 16 10 R-2R 2 +V
REF
, ±V
REF
2 0.0015 15 P16 Ext ± or + 4.75 to 5.25 2.5 $10.55 72
DAC8532 16 10 String 2 +V
REF
1 0.0987 16 Serial, SPI Ext + 2.7 to 5.5 1.35 $5.35 73
DAC712 16 10 R-2R 1 ±10 1 0.003 15 P16 Int ± 11.4 to 16.5 525 $14.50 72
DAC714 16 10 R-2R 1 ±10 1 0.0015 16 Serial, SPI Int ± 11.4 to 16.5 525 $14.50 72
DAC715 16 10 R-2R 1 +10 1 0.003 16 P16 Int ± 11.4 to 16.5 525 $15.85 73
DAC716 16 10 R-2R 1 +10 2 0.003 16 Serial, SPI Int ± 11.4 to 16.5 525 $15.85 73
DAC Selection Guide
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Quick Reference Selection Table
95
DAC Selection Guide (Continued)
Number of Update Supply Power
Settling Number of Update Supply Power
Resolution Time Output Rate Output DNL INL Monotonic Voltage Consumption Refer to
Device (Bits) (µs) Architecture Channels (MSPS) (V) (±LSB) (%) (Bits) Interface V
REF
(V) (mW) (Typ) Price* Page
DAC7631 16 10 R-2R 1 +V
REF
, ±V
REF
2 0.0015 15 Serial, SPI Ext ± or + 4.75 to 5.25 1.8 $5.85 72
DAC7641 16 10 R-2R 1 +V
REF
, ±V
REF
2 0.0015 15 P16 Ext ± or + 4.75 to 5.25 1.8 $6.30 72
DAC8551 16 10 String 1 +V
REF
1 0.012 16 Serial, SPI Ext 2.75 to 5.25 1 $2.65 71, 73
DAC8550 16 10 String 1 +V
REF
1 0.012 16 Serial, SPI Ext 2.75 to 5.25 1 $2.65 71, 73
DAC8564 16 10 String 4 +V
REF
(+2.5) 1 0.012 16 Serial, SPI Int/Ext 2.75 to 5.25 5 $10.45 73
DAC8565 16 10 String 4 +V
REF
(+2.5) 1 0.012 16 Serial, SPI Int/Ext 2.75 to 5.25 5 $10.45 73
DAC8560 16 10 String 1 +V
REF
(+2.5) 1 0.012 16 Serial, SPI Int/Ext 2.75 to 5.25 2.6 $3.50 71, 73
DAC8501 16 10 String MDAC 1 +V
REF
/MDAC 1 0.0987 16 Serial, SPI Ext + 2.7 to 5.5 0.72 $3.00 73
DAC8531 16 10 String 1 +V
REF
1 0.0987 16 Serial, SPI Ext + 2.7 to 5.5 0.72 $3.00 75
DAC8541 16 10 String 1 +V
REF
1 0.096 16 P16 Ext + 2.7 to 5.5 0.72 $3.00 73
DAC8571 16 10 String 1 +V
REF
1 0.0987 16 Serial, I
2
C Ext + 2.7 to 5.5 0.42 $2.95 73
DAC7654 16 12 R-2R 4 ±2.5 1 0.0015 16 Serial, SPI Int ± or + 4.75 to 5.25 18 $21.80 72
DAC7664 16 12 R-2R 4 ±2.5 1 0.0015 16 P16 Int ± or + 4.75 to 5.25 18 $20.75 72
DAC1221 16 2000 Delta-Sigma 1 2.5 1 0.0015 16 Serial, SPI Ext + 2.7 to 3.3 1.2 $5.01 69
DAC5675 14 0.005 I-Steering 1 400 20mA 2 0.006 LVDS/P14 Int/Ext 3 820 $29.45 76
DAC5675-EP 14 0.005 I-Steering 1 400 20mA 2 0.024 LVDS/P14 Int/Ext + 3.15 to 3.6 820 $50.00 95
DAC5672 14 0.02 I-Steering 2 200 20mA 3 0.024 2 x P14 Int 3.0 to 5.25 330 $13.25 76
DAC5672-EP 14 0.02 I-Steering 2 200 20mA 3 0.024 2 x P14 Int 3.0 to 5.25 330 $25.91 95
DAC2904 14 0.03 I-Steering 2 125 20mA 4 0.03 2 x P14 Int/Ext + 3.0 to 5.5 310 $13.25 76
DAC904 14 0.03 I-Steering 1 165 20mA 1.75 0.015 P14 Int/Ext + 3.0 to 5.5 170 $6.25 76
DAC8803 14 0.5 R-2R MDAC 4 ±V
REF
(Req. OPA) 1 0.0061 14 Serial, SPI Ext 2.75 to 5.25 0.027 $12.65 71, 72
DAC8802 14 0.5 R-2R MDAC 2 ±V
REF
(Req. OPA) 1 0.0061 14 Serial, SPI Ext 2.75 to 5.25 0.027 $6.10 71, 72
DAC8805 14 0.5 R-2R MDAC 2 ±V
REF
(Req. OPA) 1 0.0061 16 P14 Ext 2.75 to 5.25 0.027 $6.15 71, 72
DAC8801 14 0.5 R-2R MDAC 1 ±V
REF
(Req. OPA) 1 0.0061 14 Serial, SPI Ext 2.75 to 5.25 0.027 $4.60 71, 72
DAC8806 14 0.5 R-2R MDAC 1 ±V
REF
(Req. OPA) 1 0.0061 16 P14 Ext 2.75 to 5.25 0.027 $5.50 71, 72
DAC5662 12 0.02 I-Steering 2 200 20mA 2 0.0488 Serial Ext +3.0 to 3.6 330 $10.70 76
DAC5662-EP 12 0.02 I-Steering 2 200 20mA 2 0.0488 Serial Ext +3.0 to 3.6 330 $20.92 95
DAC5674 12 0.02 I-Steering 1 400 20mA 2 0.085 P14 Int/Ext 1.8/3.3 420 $15.00 74
DAC2932 12 0.025 I-Steering 2 40 2mA 0.5 0.0488 P12 Int/Ext +2.7 to 3.3 29 $8.35 76
DAC2902 12 0.03 I-Steering 2 125 20mA 2.5 0.0732 2 x P12 Int/Ext +3.0 to 5.25 310 $15.41 76
DAC902 12 0.03 I-Steering 1 165 20mA 1.75 0.061 P12 Int/Ext +3.0 to 5.25 170 $6.25 76
THS5661A 12 0.035 I-Steering 1 125 20mA 2 0.0976 P12 Int/Ext +3.0 to 5.25 175 $6.25 76
DAC7822 12 0.5 R-2R MDAC 2 ±V
REF
(Req. OPA) 1 0.0244 12 P12 Ext 2.75 to 5.25 0.027 $3.80 71, 72
DAC7811 12 0.5 R-2R MDAC 1 ±V
REF
(Req. OPA) 1 0.0244 12 Serial, SPI Ext 2.75 to 5.25 0.025 $2.55 42, 71, 72
DAC7821 12 0.5 R-2R MDAC 1 ±V
REF
(Req. OPA) 1 0.0244 12 P12 Ext 2.75 to 5.25 0.027 $2.60 71, 72
DAC7800 12 0.8 R-2R 2 1mA 1 0.012 12 Serial, SPI Ext + 4.5 to 5.5 1 $13.55 72
DAC7801 12 0.8 R-2R 2 1mA 1 0.012 12 P(8+4) Ext + 4.5 to 5.5 1 $17.95 72
DAC7802 12 0.8 R-2R 2 1mA 1 0.012 12 P12 Ext + 4.5 to 5.5 1 $14.00 72
TLV5610 12 1 String 8 +V
REF
1 0.4 12 Serial, SPI Ext + 2.7 to 5.5 18 $8.50 73
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Quick Reference Selection Table
96
DAC Selection Guide (Continued)
Number of Update Supply Power
Settling Number of Update Supply Power
Resolution Time Output Rate Output DNL INL Monotonic Voltage Consumption Refer to
Device (Bits) (µs) Architecture Channels (MSPS) (V) (±LSB) (%) (Bits) Interface V
REF
(V) (mW) (Typ) Price* Page
TLV5630 12 1 String 8 +V
REF
1 0.4 12 Serial, SPI Int/Ext + 2.7 to 5.5 18 $8.85 73
TLV5638 12 1 String 2 +V
REF
(+2, 4) 1 0.1 12 Serial, SPI Int/Ext + 2.7 to 5.25 4.5 $3.25 73
TLV5638-EP 12 1 String 2 +V
REF
(+2, 4) 1 0.1 12 Serial, SPI Int/Ext + 2.7 to 5.25 4.5 $9.34 96
TLV5638M 12 1 String 2 +V
REF
(+2, 4) 1 0.1 12 Serial, SPI Int/Ext + 2.7 to 5.25 4.5 $32.50 96
DAC7541 12 1 R-2R MDAC 1 ±V
REF
(Req. OPA) 0.5 0.012 12 P12 Ext + 5 to 16 30 $6.70 72
DAC8043 12 1 R-2R MDAC 1 ±V
REF
(Req. OPA) 1 0.012 12 Serial, SPI Ext + 4.75 to 5.25 2.5 $3.60 73
TLV5613 12 1 String 1 +V
REF
1 0.1 12 P8 Ext + 2.7 to 5.5 1.2 $2.60 73
TLV5619 12 1 String 1 +V
REF
1 0.08 12 P12 Ext + 2.7 to 5.5 4.3 $2.60 73
TLV5633 12 1 String 1 +V
REF
(+2, 4) 0.5 0.08 12 P8 Int/Ext + 2.7 to 5.5 2.7 $4.70 73
TLV5636 12 1 String 1 +V
REF
(+2, 4) 1 0.1 12 Serial, SPI Int/Ext + 2.7 to 5.25 4.5 $3.65 73
TLV5639 12 1 String 1 +V
REF
(+2, 4) 0.5 0.1 12 P12 Int/Ext + 2.7 to 5.25 2.7 $3.45 73
TLV5619-EP 12 1 String 1 +V
REF
1 0.08 12 P12 Ext + 2.7 to 5.5 4.3 $7.91 96
DAC7545 12 2 R-2R MDAC 1 ±V
REF
(Req. OPA) 1 0.012 12 P12 Ext + 5 to 16 30 $5.25 73
TLV5618A 12 2.5 String 2 +V
REF
1 0.08 12 Serial, SPI Ext + 2.7 to 5.5 1.8 $4.75 73
TLV5618A-EP 12 2.5 String 2 +V
REF
1 0.08 12 Serial, SPI Ext +2.7 to 5.5 1.8 $11.78 96
TLV5614 12 3 String 4 +VREF 1 0.1 12 Serial, SPI Ext + 2.7 to 5.5 3.6 $7.45 74
TLV5618AM 12 3 String 2 +V
REF
1 0.1 12 Serial, SPI Ext +2.7 to 5.5 1.8 $28.23 96
TLV5616 12 3 String 1 +V
REF
1 0.1 12 Serial, SPI Ext + 2.7 to 5.5 0.9 $2.60 73
DAC811 12 4 R-2R 1 +10, ±5, 10 0.5 0.006 12 P12 Int ± or + 11.4 to 16.5 625 $11.00 73
DAC813 12 4 R-2R 1 +V
REF
(+10, ±5, 10) 0.5 0.006 12 P12 Int/Ext ± or + 11.4 to 16.5 270 $12.60 73
DAC7558 12 5 String 8 +V
REF
1 0.012 12 Serial, SPI Ext 2.75 to 5.25 2.7 $7.50 74
DAC7554 12 5 String 4 +V
REF
1 0.012 12 Serial, SPI Ext 2.75 to 5.25 1.5 $4.80 74
DAC7552 12 5 String 2 +V
REF
1 0.024 12 Serial, SPI Ext 2.75 to 5.25 0.675 $2.35 74
DAC7553 12 5 String 2 +V
REF
1 0.024 12 Serial, SPI Ext 2.75 to 5.25 0.675 $2.35 74
DAC7551 12 5 String 1 +V
REF
1 0.024 12 Serial, SPI Ext 2.75 to 5.25 0.27 $1.40 74
DAC7573 12 10 String 4 +V
REF
1 0.096 12 Serial, I
2
C Ext 2.75 to 5.25 1.8 $6.15 74
DAC7574 12 10 String 4 +V
REF
0.096 12 Serial, I
2
C Ext + 2.7 to 5.5 1.8 $6.15 74
DAC7614 12 10 R-2R 4 +V
REF
, ±V
REF
1 0.012 12 Serial, SPI Ext ± or + 4.75 to 5.25 15 $6.70 73
DAC7615 12 10 R-2R 4 +V
REF
, ±V
REF
1 0.012 12 Serial, SPI Ext ± or + 4.75 to 5.25 15 $6.70 73
DAC7616 12 10 R-2R 4 +V
REF
, ±V
REF
1 0.012 12 Serial, SPI Ext + 3 to 3.6 2.4 $5.40 73
DAC7617 12 10 R-2R 4 +V
REF
, ±V
REF
1 0.012 12 Serial, SPI Ext + 3 to 3.6 2.4 $5.40 73
DAC7624 12 10 R-2R 4 ±V
REF
1 0.012 12 P12 Ext ± or + 4.75 to 5.25 15 $10.25 73
DAC7625 12 10 R-2R 4 ±V
REF
1 0.012 12 P12 Ext ± or + 4.75 to 5.25 15 $10.25 73
DAC7714 12 10 R-2R 4 ±V
REF
1 0.012 12 Serial, SPI Ext ± or + 14.25 to 15.75 45 $11.45 73
DAC7715 12 10 R-2R 4 ±V
REF
1 0.012 12 Serial, SPI Ext ± or + 14.25 to 15.75 45 $11.45 73
DAC7724 12 10 R-2R 4 ±V
REF
1 0.012 12 P12 Ext ± or + 14.25 to 15.75 45 $11.85 73
DAC7725 12 10 R-2R 4 ±V
REF
1 0.012 12 P12 Ext ± or + 14.25 to 15.75 45 $11.85 73
DAC7612 12 10 R-2R 2 +4.096 1 0.012 12 Serial, SPI Int + 4.75 to 5.25 3.5 $3.10 74
DAC7512 12 10 String 1 +V
DD
1 0.38 12 Serial, SPI Ext + 2.7 to 5.5 0.345 $1.45 74
DAC7513 12 10 String 1 +V
REF
1 0.38 12 Serial, SPI Ext + 2.7 to 5.5 0.3 $1.65 74
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Quick Reference Selection Table
97
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
DAC Selection Guide (Continued)
Number of Update Supply Power
Settling Number of Update Supply Power
Resolution Time Output Rate Output DNL INL Monotonic Voltage Consumption Refer to
Device (Bits) (µs) Architecture Channels (MSPS) (V) (±LSB) (%) (Bits) Interface V
REF
(V) (mW) (Typ) Price* Page
DAC7571 12 10 String 1 +V
REF
0.096 12 Serial, I
2
C Ext + 2.7 to 5.5 0.85 $1.55 74
DAC7611 12 10 R-2R 1 +4.096 1 0.012 12 Serial, SPI Int + 4.75 to 5.25 2.5 $2.55 74
DAC7613 12 10 R-2R 1 +V
REF
, ±V
REF
1 0.012 12 P12 Ext ± or + 4.75 to 5.25 1.8 $2.50 73
DAC7621 12 10 R-2R 1 +4.096 1 0.012 12 P12 Int + 4.75 to 5.25 2.5 $2.75 74
DAC5652 10 0.02 I-Steering 2 275 20mA 1 0.0488 12 Serial Int/Ext 3.0 to 3.6 290 $7.60 76
DAC5652-EP 10 0.02 I-Steering 2 275 20mA 1 0.0488 12 Serial Int/Ext 3.0 to 3.6 290 $14.86 97
DAC2900 10 0.03 I-Steering 2 125 20mA 1 0.0976 2 x P10 Int/Ext +3.0 to 5.25 310 $6.00 76
DAC900 10 0.03 I-Steering 1 165 20mA 0.5 0.0976 10 P10 Int/Ext +3.0 to 5.25 170 $4.25 76
THS5651A 10 0.035 I-Steering 1 125 20mA 0.5 0.0976 P10 Int/Ext + 3 to 5.5 175 $4.25 76
TLV5637 10 0.8 String 2 +2, 4 0.5 0.1 10 Serial, SPI Int/Ext + 2.7 to 5.25 4.2 $3.20 74
TLV5608 10 1 String 8 +V
REF
1 0.4 10 Serial, SPI Ext + 2.7 to 5.5 18 $4.90 74
TLV5631 10 1 String 8 +V
REF
1 0.4 10 Serial, SPI Int/Ext + 2.7 to 5.5 18 $5.60 74
TLV5617A 10 2.5 String 2 +V
REF
0.5 0.1 10 Serial, SPI Ext + 2.7 to 5.5 1.8 $2.25 74
TLV5604 10 3 String 4 +V
REF
1 0.05 10 Serial, SPI Ext + 2.7 to 5.5 3 $3.70 74
TLV5606 10 3 String 1 +V
REF
1 0.15 10 Serial, SPI Ext + 2.7 to 5.5 0.9 $1.30 74
DAC6573 10 9 String 4 +V
REF
0.5 0.195 10 Serial, I
2
C Ext 2.75 to 5.25 1.5 $3.05 74
DAC6574 10 9 String 4 +V
REF
0.5 0.195 10 Serial, I
2
C Ext 2.7 to 5.5 1.5 $3.05 74
DAC6571 10 9 String 1 +V
DD
0.5 0.195 10 Serial, I
2
C Ext 2.75 to 5.25 0.5 $1.40 74
TLC5615 10 12.5 String 1 +V
REF
0.5 0.1 10 Serial, SPI Ext + 4.5 to 5.5 0.75 $1.90 74
DAC908 8 0.03 I-Steering 1 165 20mA 0.5 0.2 P8 Ext +3.0 to 5.25 170 $2.90 76
TLC5602 8 0.03 I-Steering 1 30 20mA 0.5 0.2 P8 Ext +4.75 to 5.25 80 $1.55 76
THS5641A 8 0.035 I-Steering 1 100 20mA 0.5 0.4 P8 Ext +3.0 to 5.25 100 $2.90 76
TLC7528 8 0.1 R-2R 2 1 mA 0.5 0.2 8 P8 Ext + 4.75 to 15.75 7.5 $1.55 73
TLC7628 8 0.1 R-2R 2 2 mA 0.5 0.2 8 P8 Ext + 10.8 to 15.75 20 $1.45 73
TLC7524 8 0.1 R-2R 1 1 mA 0.5 0.2 8 P8 Ext + 4.75 to 5.25 5 $1.45 73
TLV5626 8 0.8 String 2 +V
REF
(+2, 4) 0.5 0.4 8 Serial, SPI Int/Ext + 2.7 to 5.5 4.2 $1.90 74
TLV5629 8 1 String 8 +V
REF
1 0.4 8 Serial, SPI Ext + 2.7 to 5.5 18 $3.15 74
TLV5632 8 1 String 8 +V
REF
(+2, 4) 1 0.4 8 Serial, SPI Int/Ext + 2.7 to 5.5 18 $3.35 74
TLV5624 8 1 String 1 +V
REF
(+2, 4) 0.2 0.2 8 Serial, SPI Int/Ext + 2.7 to 5.5 0.9 $1.60 74
TLV5627 8 2.5 String 4 +V
REF
0.5 0.2 8 Serial, SPI Ext + 2.7 to 5.5 3 $2.05 74
TLV5625 8 3 String 2 +V
REF
0.2 0.2 8 Serial, SPI Ext + 2.7 to 5.5 2.4 $1.70 74
TLV5623 8 3 String 1 +V
REF
0.2 0.2 8 Serial, SPI Ext + 2.7 to 5.5 2.1 $0.99 74
TLC7225 8 5 R-2R 4 +V
REF
1 0.4 8 P8 Ext ± or + 11.4 to 16.5 75 $2.35 73
TLC7226 8 5 R-2R 4 +V
REF
1 0.4 8 P8 Ext ± or + 11.4 to 16.5 90 $2.15 73
TLC7226M 8 5 R-2R 4 +V
REF
1 0.4 8 P8 Ext ± or + 11.4 to 16.5 90 $78.98 97
DAC5573 8 8 String 4 +V
REF
0.25 0.195 8 Serial, I
2
C Ext 2.75 to 5.25 1.5 $2.55 74
DAC5574 8 8 String 4 +V
REF
0.25 0.195 8 Serial, I
2
C Ext 2.7 to 5.5 1.5 $2.55 74
DAC5571 8 8 String 1 +V
DD
0.25 0.195 8 Serial, I
2
C Int 2.75 to 5.25 0.5 $0.90 74
TLC5628 8 10 String 8 +V
REF
0.9 0.4 8 Serial, SPI Ext + 4.75 to 5.25 15 $2.45 74
TLV5628 8 10 String 8 +V
REF
0.9 0.4 8 Serial, SPI Ext + 2.7 to 5.25 12 $2.20 74
TLV5620 8 10 R-2R 4 +V
REF
0.9 0.2 8 Serial, SPI Ext + 2.7 to 5.5 6 $1.00 74
TLV5621 8 10 R-2R 4 +V
REF
0.9 0.4 8 Serial, SPI Ext + 2.7 to 5.5 3.6 $1.65 74
TLC5620 8 10 String 4 +V
REF
0.9 0.4 8 Serial, SPI Ext + 4.75 to 5.25 8 $1.75 74
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red.
Audio Digital-to-Analog Converters (DACs)
Audio DACs
PCM1780/81/82
Stereo with Volume Control, Software (1780/82) and Hardware (1781), 106 192 Normal, I2S +5 SSOP-16 $1.10 Open-Drain Output Zero Flag (1782), Improved Jitter Performance
PCM1753/54/55 Stereo with Volume Control, Software (1753/55) and Hardware (1754), Open-Drain 106 192 Normal, I2S +5 SSOP-16 $0.98
Output Zero Flag (1755)
PCM1770/1 Stereo with Integrated Headphone Driver, Software (1770) and Hardware (1771) Controlled 98 48 Normal, I2S +1.6 to +3.6 TSSOP-16, $1.90
QFN-20
PCM1772/3 Stereo with Integrated Line Out, Software (1772) and Hardware (1773) Controlled 98 48 Normal, I2S +1.6 to +3.6 TSSOP-16, $1.90
QFN-20
PCM1738/30 Stereo Advanced Segment DAC, Soft Mute (1730), 2 Optional Operation Modes (1738): 117 192 Normal, I2S, +3.3 and +5 SSOP-28 $5.00
External Filter and DSD Decoder for SACD Playback and Digital Attenuation DSD
PCM1792A Stereo, Optional DSD Format, External Filter and DSP Interface, SPI/I2C, 132 192 Standard, +3.3 and +5 SSOP-28 $13.00
Differential Current Output: 7.8mA p-p I2S, L
PCM1796/8 Stereo Advanced Segment, 123dB Dynamic Range, TDMCA Serial Interface (1798) 123 192 Standard, +3.5 and +5 SSOP-28 $6.50
I2S, L PCM1606 6-Channel, Low Cost CMOS, Multilevel 103 192 Normal, I2S +5 SSOP-20 $2.48 PCM1608 8-Channel, Highly Integrated DAC, Higher SNR 105 192 Normal, I2S +3.3 and +5 LQFP-48 $4.10 PCM1680 8-Channel, Low Cost DAC, Improved Jitter Performance, Pin Compatible with PCM1780 103 192 Normal, I2S +5 SSOP-24 $2.60 DSD1608 8-Channel, Enhanced Multiformat ∆Σ DAC, Supports DSD with TDMCA 108 192 Normal, I2S, +3.3 and +5 TQFP-52 $5.68
DSD PCM4104 4-Channel, High Performance, Sampling Rate up to 216kHz, H/W or S/W Controlled 118 216 Normal, I2S, +3.3 and +5 TQFP-48 $4.95
TDM PCM1791A Stereo Advanced Segment DAC, Optional DSD Format, External Filter and 113 192 Normal, I2S, +3.3 and +5 SSOP-28 $2.10
DSP Interface, SPI/I2C Differential Current Output: 3.2mAp-p TDMCA
PCM1793 Stereo Advanced Segment DAC, Balanced Voltage Outputs, Improved Clock Jitter 113 192 Normal, I2S, +3.3 and +5 SSOP-28 $3.15
Left Justified
TLV320DAC23 I2C and SPI Control with Headphone Amp, PDISS = 23mW 100 96 Normal, I2S, DSP +1.5 to +3.3 VFBGA-80, $2.00
TSSOP-28,
QFN-28 TLV320DAC26 Integrated PLL, SPI Control, Speaker/Headphone Amp, PDISS = 11mW 97 53 Normal, I2S, DSP +2.7 to +3.6 QFN-32 $2.95 TLV320DAC32 Low-Power Stereo DAC with PLL and Stereo HP/Speaker Amplifiers 95 96 Normal ,I2S, +2.7 to +3.6 QFN-32 $2.75
DSP, TDM
PCM1777 Low-Power Stereo DAC with Stereo HP and Class-D Speaker Amplifiers 93 50 Normal, I2S, DSP +2.4 to +3.6 QFN-32 TBD
*
Suggested resale price in U.S. dollars in quantities of 1,000. Preview products are listed in bold blue.
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Quick Reference Audio Selection Tables
Data Converters
98
Audio Analog-to-Digital Converters (ADCs)
Audio ADCs
Dynamic Sampling Rate Audio Data Power
Device Description Range (dB) (kHz) (max) Format Supply (V) Package(s) Price
*
PCM1850/1 Stereo ADC w/2 x 6 Input MUX and PGA, SPI (1850) and I
2
C (1851) Control 101 96 Normal, I2S +3.3 and +5 TQFP-32 $4.80 PCM1807/8 Stereo ADC, SE Input, Mute w/Fade, SPI Control, S/W (1807) H/W (1808) Controlled 101 96 I2S, L +3.5 and +5 TSSOP-14 $1.00 PCM1803A Stereo ADC, SE Input, High Pass Filter 103 96 Normal, I2S +3.5 and +5 SSOP-20 $1.10 PCM1802 Stereo ADC, SE Input 105 96 Normal, I2S +3.3 and +5 SSOP-20 $3.35 PCM1804 Stereo ADC, Fully Differential, High Pass Filter 112 192 Normal, I2S, DSD +3.3 and +5 SSOP-28 $3.95
PCM1870 Stereo ADC, SE Input, Digital Filter, Very Low Power Consumption 90 50 Normal, I2S, DSP +2.4 and +3.6 QFN-24 $1.80
PCM4204 4-Channel, High-Performance ∆Σ ADC, PCM or DSD, High Pass Filter 118 216
Normal, I2S, DSD, TDM
+3.3 and +5 TQFP-64 $7.95
PCM4202 Stereo, High-Performance ∆Σ ADC, PCM or DSD, High Pass Filter 118 216 Normal, I2S, DSD +3.3 and +5 SSOP-28 $4.95 PCM4201 Mono, High-Performance ∆Σ ADC, PCM, High Pass Filter, 112 108 Normal, DSP +3.3 and +5 TSSOP-16 $2.50
Wide Digital Supply Range, Low Power Dissipation
PCM4222 2-Channel, High-Performance ∆Σ ADC 124 216
6-Bit Modulator, DSD,
+3.3 and +4 TQFP-48 $14.95
Normal, I2S, TDM
PCM4220 2-Channel, High-Performance ∆Σ ADC 123 216 Normal, I2S, TDM +3.3 and +4 TQFP-48 $9.95
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Texas Instruments 3Q 2007 Amplifier and Data Converter Selection Guide
Quick Reference Audio Selection Tables
Audio DACs and ADCs
99
Low-Power Audio Codecs
Resolution Dynamic Sampling Rate Audio Data Power
Device Description (Bits) (max) Range (dB) (kHz) (max) Format Supply (V) Package(s) Price*
TLV320AIC34 Low-Power Quad Stereo (4-Channel) Codec, 12 Inputs (Mic/Line), 32 102 96 Normal, +2.7 to 3.6 BGA-87 TBD
14 Outputs (Line/HP/Speaker), 2 PLLs and Audio Serial Buses I2S, DSP, TDM Allow Fully Asynchronous Simultaneous Codec Operation
TLV320AIC3101 Low-Power Stereo Codec, Integrated PLL, 6 Inputs (Mic/Line), 32 102 96 Normal, +2.7 to 3.6 QFN-32 $3.55
6 Outputs (Line/HP/Speaker), Notch Filtering, PowerTune™ I2S, DSP, TDM (Adj. SNR vs. Power Consumption), Low-Power Analog Bypass
TLV320AIC3104 Low-Power Stereo Codec, Integrated PLL, 6 Inputs (MicLine), 32 102 96 Normal, +2.7 to 3.6 QFN-32 TBD
6 Outputs (Line/HP), Notch Filtering, PowerTune I2S, DSP, TDM (Adj. SNR vs. Power Consumption), Low-Power Analog Bypass
TLV320AIC3105 Low-Power Stereo Codec, Integrated PLL, 6 SE Inputs (Mic/Line), 32 102 96 Normal, +2.7 to 3.6 QFN-32 TBD
6 Outputs (Line/HP), Notch Filtering, PowerTune I2S, DSP, TDM (Adj. SNR vs. Power Consumption), Low-Power Analog Bypass
TLV320AIC3106 Low-Power Stereo Codec, Integrated PLL, 10 Inputs (Mic/Line), 32 102 96 Normal, +2.7 to 3.6 QFN-48, $3.85
7 Outputs (Line/HP), Notch Filtering, PowerTune I2S, DSP, TDM BGA-80 (Adj. SNR vs. Power Consumption), Low-Power Analog Bypass
TLV320AIC33 Low-Power Stereo Codec, Integrated PLL, 6 Inputs, 32 100 96 Normal, +2.7 to 3.6 QFN-48, $3.95
3 Line Out and Speaker/HP Outputs I2S, DSP, TDM BGA-80
TLV320AIC31/32 Low-Power Stereo Codec, Integrated PLL, 6 Inputs 32 100 96 Normal, +2.7 to 3.6 QFN-32 $3.45
(AIC32-6 Single-Ended, AIC31-2 Differential and 2 Single Ended) I2S, DSP, TDM 2 Line Out and Speaker/HP Outputs
TLV320AIC23B Low-Power, Lower Cost, Stereo Codec with Headphone Amps 24 100 96 I2S, L, R +2.7 to 3.3 VFBGA-80, $3.00
TSSOP-28, QFN-28
TLV320AIC28/29 Low-Power, Stereo DAC, Mono ADC, Integrated PLL, Speaker/HP 24 98 53 Normal, +2.7 to 3.6 QFN-48 $3.95/$3.45
Amp, Additional Inputs and Outputs (AIC29 – Differential) I2S, DSP
TLV320AIC26 Low-Power, Lower Cost, Stereo DAC, Mono ADC, 24 97 53 Normal, +2.7 to 3.6 QFN-32 $3.25
Integrated PLL, Speaker/HP Amp I2S, DSP
PCM3000 Stereo Audio Codec 18-Bits, 18 98 48 Normal, I2S, +4.5 to 5.5 SSOP-28 $3.45
Serial Interface, Software Controlled DSP
PCM3001 Stereo Audio Codec 18-Bits, 18 98 48 Normal, I2S, +4.5 to 5.5 SSOP-28 $3.45
Serial Interface, Hardware Controlled DSP PCM3006 Low-Power, 3V Supply, Stereo Codec, Hardware Controlled 16 93 48 Normal +2.7 to 3.6 SSOP-24 $3.45 PCM3008 Low-Power, 2.4V Single Supply, Stereo Codec, 16 88 48 Normal, I2S +2.1 to 3.6 TSSOP-16 $3.10
Low-Cost, Hardware Controlled
PCM3793 Ultra Low-Power Stereo Codec, 6 Inputs (Mic/Line), 3 Outputs 16 93 48 Normal, I2S, +2.4 to 3.6 QFN-32 $4.50
(Line/HP/Class-D Speaker) DSP
PCM3794
Ultra Low-Power Stereo Codec, 6 Inputs (Mic/Line), 5 Outputs (Line/HP)
16 93 48 Normal, I2S, DSP +2.4 to 3.6 QFN-32 $4.25
*
Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
Interface and Sample Rate Converters
grated Sample Rate Converters and S/PDIF – AES/EBU Transceivers
# SRC THD+N Sample Digital Audio Control Dynamic AES AES Power Pin/
Device Description Channels (dB) Rate (max) Interface Interface Range (dB) Receive Transmit Supply (V) Package Price
*
SRC4392 High-End Combo Sample Rate Converter 2 –140 216 AES/EBU, S/PDIF, I2S, R, L I2S, SPI 144 Yes Yes 1.8, 3.3 TQFP-48 $9.95 SRC4382 Combo Sample Rate Converter 2 –125 216 AES/EBU, S/PDIF, I2S, R, L I2S, SPI 128 Yes Yes 1.8, 3.3 TQFP-48 $7.50
Standalone Sample Rate Converters
SRC4184 4-Channel, Asynchronous 4 –125 212 I2S, R, L, TDM SPI 128 1.8, 3.3 TQFP-64 $7.50
Sample Rate Converter
SRC4190 192kHz Stereo Asynchronous 2 –125 212 I2S, R, L, TDM H/W 128 3.3 SSOP-28 $4.50
Sample Rate Converters SRC4192 High-End Sample Rate Converter 2 –140 212 I2S, R, L, TDM H/W 144 3.3 SSOP-28 $7.50 SRC4193 High-End Sample Rate Converter 2 –140 212 I2S, R, L, TDM SPI 144 3.3 SSOP-28 $8.50 SRC4194 4-Channel, Asynchronous 4 –140 212 I2S, R, L, TDM SPI 144 1.8, 3.3 TQFP-64 $12.50
Sample Rate Converter
Standalone S/PDIF and AES/EBU Interfaces
DIX4192 Digital Audio Interface Transceiver 0 216 AES/EBU, S/PDIF, I2S, R, L I2C, SPI Yes Yes 1.8, 3.3 TQFP-48 $4.95 DIT4192 192kHz Digital Audio Transmitter 0 192 AES/EBU, S/PDIF, I2S, R, L H/W, SPI No Yes 3.3, 5 TSSOP-28 $2.05 DIT4096 96kHz Digital Audio Transmitter 0 96 AES/EBU, S/PDIF, I2S, R, L H/W, SPI No Yes 3.3, 5 TSSOP-28 $1.55 DIR9001 96kHz Digital Audio Receiver 0 96 AES/EBU, S/PDIF, I2S, R, L H/W Yes No 3.3 TSSOP-28 $1.95
Amplifier and Data Converter Selection Guide Texas Instruments 3Q 2007
Quick Reference Audio Selection Tables
Audio DACs and ADCs and Touch Screen Controllers
100
Non-Audio Touch Screen Controllers
Touch Res. Supply Voltage Power Consumption
Device Panel (Bits) Interface Features ESD V
REF
(V) (mW) Package(s) Price
*
ADS7843 4-Wire 12(8) Serial, SPI X, Y, AUX 2kV Ext 2.7 to 5.25 1.8 SSOP-16 $1.70 ADS7845 5-Wire 12(8) Serial, SPI X, Y, AUX 2kV Ext 2.7 to 5.25 1.8 SSOP-16 $4.20 ADS7846 4-Wire 12(8) Serial, SPI X, Y, Pressure, V
BAT
, Temp, AUX 2kV Int 2.7 to 5.25 1.8 SSOP-16, TSSOP-16, $2.05
QFN-16, BGA-48
TSC2000 4-Wire 8, 10, 12 Serial, SPI Processor, X, Y, Pressure, VBAT, 2kV Int 2.7 to 3.6 6.2 TSSOP-16, QFN-16, $2.35
Temp, AUX, DAC BGA-48
TSC2003 4-Wire 12(8) Serial, I2C X, Y, Pressure, V
BAT
, Temp, AUX 2kV A Int 2.7 to 5.25 1.8 TSSOP-16 $2.25
2kV C
TSC2004 4-Wire 12 Serial, I2C Processor, X, Y, Pressure, Temp, AUX 18kV A Ext Analog: 1.6 to 3.6 0.075 (typ) Std 0.6 2.5x2.5 WCSP-18, $2.10
15kV C VI/O: 1.2 to 3.6 (typ) Enhanced QFN-20
TSC2005 4-Wire 12 Serial, SPI Processor, X, Y, Pressure, Temp, AUX 18kV A Ext Analog: 1.6 to 3.6 0.075 (typ) Std 0.6 2.5x3.0 WCSP-18 $2.20
` 15kV C VI/O: 1.2 to 3.6 (typ) Enhanced
TSC2006 4-Wire 12 Serial, SPI Processor, X, Y, Pressure, Temp, AUX 18kV A Ext Analog: 1.6 to 3.6 0.075 (typ) Std 0.6 QFN-20 $2.00
15kV C VI/O: 1.2 to 3.6 (typ) Enhanced
TSC2007 4-Wire 12 Serial, I2C Processor, X, Y, Pressure, Temp, AUX 25kV A VDD= 1.2 to 3.6 0.04 (typ) 1.5x2.0 WCSP-12 $1.75
15kV C V
REF
TSSOP-16
TSC2046 4-Wire 12(8) Serial, SPI X, Y, Pressure, V
BAT
, Temp, AUX 2kV A Int Analog: 2.2 to 5.25 1.8 TSSOP-16, QFN-16, $1.80
2kV C VI/O: 1.5 to 5.25 BGA-48
TSC2046E 4-Wire 12(8) Serial, SPI X, Y, Pressure, V
BAT
, Temp, AUX 18kV A Int Analog: 2.2 to 5.25 0.7 TSSOP-16, QFN-16, $1.95
15kV C VI/O: 1.5 to 5.25 BGA-48
TSC2200 4-Wire 8, 10, 12 Serial, SPI Processor, X, Y, Pressure, V
BAT
, Temp, 2kV Int 2.7 to 3.6 6.2 TSSOP-16, QFN-16, $2.40
KP, AUX, DAC BGA-48
Voiceband Codecs
Sample Number of SNR Power Supply
Device Description Rate (kHz) Input Channels (dB) Interface Analog Supply Logic Supply (mW) (typ) Package(s) Price
*
AIC111 Lowest Power, 20-Bit 40 1 87 SPI , DSP 1.1 to 1.5 1.1 to 3.3 0.46 QFN-32, FlipChip $4.14 TLV320AIC12K Low Power, Mono Codec, 16-Bit, 26 1 90 I2C, S2C, DSP 1.65 to 1.95/2.7 to 3.6 1.1 to 3.6 10 TSSOP-30 $2.90
26ksps Voiceband Codec with 8W Driver
TLV320AIC14K Low Power, Mono Codec, 16-Bit 26 1 90 I2C, S2C, DSP 1.65 to 1.95/2.7 to 3.6 1.1 to 3.6 10 TSSOP-30 $2.45
26ksps Voiceband Codec
TLV320AIC20K Low Power, Stereo Codec, 16-Bit 26 2 90 I2C, S2C, DSP 1.65 to 1.95/2.7 to 3.6 1.1 to 3.6 20 TQFP-48 $3.70
26ksps Voiceband Codec with 8Ω Driver
TLV320AIC24K Low Power, Stereo Codec, 16-Bit 26 2 90 I2C, S2C, DSP 1.65 to 1.95/2.7 to 3.6 1.1 to 3.6 20 TQFP-48 $3.55
26ksps Voiceband Codec
Touch Screen Controllers with Audio
een Controllers with Audio
Resolution Dynamic Sampling Rate Configurations Audio Data Power
Device Description (Bits) (max) Range (dB) (kHz) (max) (ADC/DAC) Format Supply (V) Package(s) Price
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TSC2100 4-Wire Touch-Screen Interface, Low Power, Lower Cost, Stereo DAC, 24 97 53 Mono/Stereo Normal, +2.7 to 3.6 QFN-32, $3.95
Mono ADC, Integrated PLL, Speaker/HP Amp I2C, DSP TSSOP-32 TSC2101/ 4-Wire Touch-Screen Interface, Low Power, Stereo DAC, Mono ADC, Integrated 24 95 53 Mono/Stereo Normal, +2.7 to 3.6 QFN-48 $4.95 TSC2111 PLL, Speaker/HP Amp, Additional Inputs and Outputs (TSC2111 – Differential) I2C, DSP TSC2102 4-Wire Touch-Screen Interface, Low Power, Stereo DAC, 24 97 53 Stereo Normal, +2.7 to 3.6 TSSOP-32 $3.70
Integrated PLL, Speaker/HP Amp, Low Cost I2C, DSP TSC2301 4-Wire Touch-Screen Interface, Low Power, Stereo DAC, 20 98 48 Stereo/Stereo Normal, +2.7 to 3.6 TQFP-64, $4.95
Stereo ADC, Integrated PLL, HP Amp, 4 x 4 Keypad Interface I2C BGA-120 TSC2302 4-Wire Touch-Screen Interface, Low Power, Stereo DAC, 20 98 48 Stereo/Stereo Normal, +2.7 to 3.6 QFN-48 $4.50
Stereo ADC,-Integrated PLL, HP Amp I2C TSC2300 4-Wire Touch-Screen Interface, Low Power, Stereo DAC, 20 98 48 Mono/Stereo Normal, I2C +2.7 to 3.6 TQFP-64 $4.75
Mono ADC, Integrated PLL, HP Amp
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Suggested resale price in U.S. dollars in quantities of 1,000. New products are listed in bold red. Preview products are listed in bold blue.
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