TEXAS INSTRUMENTS DAC7612 Technical data

®
DAC7612
DAC7612
Dual, 12-Bit Serial Input
DIGITAL-TO-ANALOG CONVERTER
FEATURES
LOW POWER: 3.7mW
FAST SETTLING: 7µs to 1 LSB
1mV LSB WITH 4.095V FULL-SCALE
RANGE
COMPLETE WITH REFERENCE
12-BIT LINEARITY AND MONOTONICITY
OVER INDUSTRIAL TEMP RANGE
3-WIRE INTERFACE: Up to 20MHz Clock
SMALL PACKAGE: 8-Lead SOIC
APPLICATIONS
PROCESS CONTROL
DATA ACQUISITION SYSTEMS
CLOSED-LOOP SERVO-CONTROL
PC PERIPHERALS
PORTABLE INSTRUMENTATION
12-Bit DAC A
LOADDACS
DAC Register A
DESCRIPTION
The synchronous serial interface is compatible with a wide variety of DSPs and microcontrollers. Clock (CLK), Serial Data In (SDI), Chip Select (CS) and Load DACs (LOADDACS) comprise the serial inter­face.
The DAC7612 is available in an 8-lead SOIC package and is fully specified over the industrial temperature range of –40°C to +85°C.
V
DD
V
12
OUTA
SBAS106
CS
CLK
SDI
DAC7612
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1999 Burr-Brown Corporation PDS-1501A Printed in U.S.A. June, 1999
14-Bit Serial Shift Register
12
12
DAC Register B
12
12-Bit DAC B
GND
Ref
V
OUTB
SPECIFICATIONS
At TA = –40°C to +85°C, and VDD = +5V, unless otherwise noted.
DAC7612U DAC7612UB
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS RESOLUTION 12 Bits
ACCURACY
Relative Accuracy Differential Nonlinearity Guaranteed Monotonic –1 ±1/2 +1 –1 ±1/4 +1 LSB Zero-Scale Error Code 000 Zero Scale Match Code 000 Full-Scale Voltage Code FFF Full-Scale Match Code FFF
ANALOG OUTPUT
Output Current Code 800 Load Regulation R Capacitive Load No Oscillation 500 pF Short-Circuit Current ±15 mA Short-Circuit Duration GND or V
DIGITAL INPUT
Data Format Serial Data Coding Straight Binary Logic Family CMOS Logic Levels
V
IH
V
IL
I
IH
I
IL
DYNAMIC PERFORMANCE
Settling Time DAC Glitch 2.5 nV-s Digital Feedthrough 0.5 nV-s
POWER SUPPLY
V
DD
I
DD
Power Dissipation V Power Supply Sensitivity ∆V
TEMPERATURE RANGE
Specified Performance –40 +85 ✻✻°C
(1)
H H H H
402, Code 800
LOAD
H
H
DD
–2 ±1/2 +2 –1 ±1/4 +1 LSB
–1 +1 +3 ✻✻✻ LSB
1/2 1/2 2 LSB
4.079 4.095 4.111 4.087 4.095 4.103 V 1/2 1/2 2 LSB
±5 ±7 ✻✻ mA
13 ✻✻ LSB
Indefinite
0.7 • V
DD
0.3 • V
±10 µA
V
DD
V
±10 µA
(2)
(tS) To ±1 LSB of Final Value 7 µs
+4.75 +5.0 +5.25 ✻✻✻ V
VIH = 5V, VIL = 0V, No Load, at Code 000
= 5V, VIL = 0V, No Load 3.5 7.5 ✻✻ mW
IH
= ±5% 0.0025 0.002 ✻✻%/%
DD
H
0.75 1.5 ✻✻ mA
Same specification as for DAC7612U. NOTES: (1) This term is sometimes referred to as Linearity Error or Integral Nonlinearity (INL). (2) Specification does not apply to negative-going transitions where
the final output voltage will be within 3 LSBs of ground. In this region, settling time may be double the value indicated.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
®
DAC7612
2
PIN CONFIGURATION
PIN DESCRIPTIONS
Top View SO-8
1
SDI
2
CLK
LOADDACS
CS
DAC7612U
3 4
ABSOLUTE MAXIMUM RATINGS
VDD to GND .......................................................................... –0.3V to 6V
Digital Inputs to GND .............................................. –0.3V to V
to GND ...........................................................–0.3V to VDD + 0.3V
V
OUT
Power Dissipation ........................................................................ 325mW
Thermal Resistance,
Maximum Junction Temperature.................................................. +150°C
Operating Temperature Range ...................................... –40°C to +85°C
Storage Temperature Range ....................................... –65 °C to +150°C
Lead Temperature (soldering, 10s) .............................................. +300°C
NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. Exposure to absolute maximum conditions for extended periods may affect device reliability.
θ
........................................................... 150°C/W
JA
V
8
OUTA
V
7
DD
GND
6
V
5
OUTB
(1)
+ 0.3V
DD
PIN LABEL DESCRIPTION
1 SDI Serial Data Input. Data is clocked into the internal
2 CLK Synchronous Clock for the Serial Data Input. 3 LOADDACS Loads the internal DAC registers. All DAC registers
4 CS Chip Select. Active LOW. 5V 6 GND Ground 7V 8V
OUTB
OUTA
serial register on the rising edge of CLK.
are transparent latches and are transparent when LOADDACS is LOW (regardless of the state of CS or CLK).
DAC B Output Voltage
Positive Power Supply
DD
DAC A Output Voltage
ELECTROSTATIC DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degrada­tion to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
PACKAGE/ORDERING INFORMATION
MINIMUM
RELATIVE DIFFERENTIAL SPECIFICATION PACKAGE
PRODUCT (LSB) (LSB) RANGE PACKAGE NUMBER
ACCURACY NONLINEARITY TEMPERATURE DRAWING ORDERING TRANSPORT
DAC7612U ±2 ±1 –40°C to +85°C SO-8 182 DAC7612U Rails
"" " " ""DAC7612U/2K5 Tape and Reel
DAC7612UB ±1 ±1 –40°C to +85°C SO-8 182 DAC7612UB Rails
"" " " ""DAC7612UB/2K5 Tape and Reel
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “DAC7612U/2K5” will get a single 2500-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
(1)
NUMBER
(2)
MEDIA
®
3
DAC7612
EQUIVALENT INPUT LOGIC
LOADDACS
SDI
CS
CLK
ESD protection
diodes to V
and GND
DD
DAC Switches
12
DAC B Register
12
Data
Serial Shift Register
12
DAC A Register
12
DAC Switches
®
DAC7612
4
TIMING DIAGRAMS
SDI
CLK
t
CL
t
CH
t
DH
t
DS
SDI
CLK
CS
LOADDACS
(MSB) (LSB)
A0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
A1
t
CSS
t
LD1
t
CSH
t
LD2
t
LDW
LOADDACS
t
FS
V
OUT
ZS
S
±1 LSB Error Band
LOGIC TRUTH TABLE TIMING SPECIFICATIONS
A1 A0
LOADDACS
REGISTER REGISTER A REGISTER B
CLK
CS
X X X H H No Change No Change No Change
SERIAL SHIFT DAC DAC
XX LXXH
L H Shifts One Bit No Change No Change
(1)
L No Change Loads Serial Loads Serial
Data Word Data Word
H L X H L No Change Loads Serial No Change
Data Word
H H X H L No Change No Change Loads Serial
Data Word
Positive Logic Transition; X = Don’t Care.
NOTE: (1) A HIGH value is suggested in order to avoid to “false clock” from advancing the shift register and changing the DAC voltage.
DATA INPUT TABLE
B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 A1 A0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
TA = –40°C to +85°C and VDD = +5V.
SYMBOL DESCRIPTION MIN TYP MAX UNITS
t
t
t t t
t
CH
t
CL
LDW
t
DS
t
DH LD1 LD2
CSS CSH
Clock Width HIGH 30 ns
Clock Width LOW 30 ns Load Pulse Width 20 ns
Data Setup 15 ns
Data Hold 15 ns
Load Setup 15 ns
Load Hold 10 ns
Select 30 ns
Deselect 20 ns
NOTE: All input control signals are specified with t of +5V) and timed from a voltage level of 2.5V. These parameters are guaranteed by design and are not subject to production testing.
= tF = 5ns (10% to 90%
R
5
DAC7612
®
TYPICAL PERFORMANCE CURVES
At TA = +25°, and VDD = 5V, unless otherwise specified.
5
OUTPUT SWING vs LOAD
4
3
RL tied to GND
Data = FFF
H
2
Output Voltage (V)
1
RL tied to V
Data = 000
DD
H
0
10 100 1k 10k 100k
Load Resistance ()
BROADBAND NOISE
Noise Voltage (500µV/div)
Time (2ms/div)
Code = FFF
, BW = 1MHz
H
PULL-DOWN VOLTAGE vs OUTPUT SINK CURRENT
1k
100
10
(mV)
OUT
Delta V
+25°C
1
+85°C
–40°C
0.1 Data = 000
0.01
0.001 0.01 0.1 1 10 100 Current (mA)
SUPPLY CURRENT vs LOGIC INPUT VOLTAGE
4.0
3.5
3.0
2.5
2.0
1.5
Supply Current (mA)
1.0
0.5 0
012345
Logic Voltage (V)
H
70
POWER SUPPLY REJECTION vs FREQUENCY
60
50
Data = FFF VDD = 5V ±200mV AC
40
30
PSR (dB)
20
10
0
10 100 1k 10k 100k 1M
Frequency (Hz)
®
DAC7612
5.0
MINIMUM SUPPLY VOLTAGE vs LOAD
H
4.8
4.6
Minimum (V)
4.4
DD
V
4.2
4.0
0.01 0.1 1 10 Output Load Current (mA)
6
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°, and VDD = 5V, unless otherwise specified.
SHORT-CIRCUIT CURRENT vs OUTPUT VOLTAGE
20 15 10
5
Positive Current
Limit
Data = 800
Output tied to I
SOURCE
0
–5
Output Current (mA)
–10 –15
Negative
Current
Limit
–20
01 423 56
Output Voltage (V)
MIDSCALE GLITCH PERFORMANCE
LOADDACS
2.0
SUPPLY CURRENT vs TEMPERATURE
V
= 3.5V
LOGIC
1.8 Data = FFF
1.6
No Load
H
1.4
1.2
1.0
0.8
0.6
Supply Current (mA)
0.4
At worst-case digital inputs.
0.2
H
VDD = 5.25V
VDD = 4.75V
VDD = 5.0V
0
–50 –30 –10 10 30 50 70 90 110 130
Temperature (°C)
MIDSCALE GLITCH PERFORMANCE
LOADDACS
(5mV/div)
OUT
V
(1V/div)
OUT
V
7FFH to 800
Time (500ns/div)
LARGE-SIGNAL SETTLING TIME
CL = 100pF R
LOADDACS
Time (20µs/div)
H
= No Load
L
(5mV/div)
OUT
V
LOADDACS
(1mV/div)
OUT
V
Time (500ns/div)
RISE TIME DETAIL
Time (10µs/div)
800H to 7FF
CL = 100pF
R
= No Load
L
H
®
7
DAC7612
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°, and VDD = 5V, unless otherwise specified.
FALL TIME DETAIL
CL = 100pF
R
(1mV/div)
OUT
V
LOADDACS
Time (10µs/div)
LONG-TERM DRIFT ACCELERATED BY BURN-IN
5 4 3 2 1
0 –1 –2 –3 –4
Output Voltage Change at FS (mV)
–5
0 168 336 504 672 840 1008
Hours of Operation at +150°C
Max
Avg
Min
= No Load
L
10.000
1.000
0.100
Noise (µV/Hz)
0.010
35
30
25
20
15
Number of Units
10
OUTPUT VOLTAGE NOISE vs FREQUENCY
Data = FFF
10 100 1k 10k 100k
Frequency (Hz)
TOTAL UNADJUSTED ERROR HISTOGRAM
T.U.E = Σ (INL + ZSE + FSE)
Sample Size = 200 Units
T
= +25°C
A
5
0
–12
–10 –8 –6 –4 –2 0 2 84 6 10 12
H
4.111
4.103
4.095
Full-Scale Output (V)
4.087
4.079
FULL-SCALE VOLTAGE vs TEMPERATURE
Avg + 3σ
Avg
Avg – 3σ
–40 –15 10 35 60 85
Temperature (°C)
®
DAC7612
Zero-Scale Output (mV)
–1
8
3
ZERO-SCALE VOLTAGE vs TEMPERATURE
Avg + 3σ
2
Avg
1
Avg – 3σ
0
–40 –15 10 35 60 85
Temperature (°C)
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°, and VDD = 5V, unless otherwise specified.
LINEARITY ERROR vs DIGITAL CODE
2.0
1.5
1.0
0.5 0
–0.5
Linearity Error (LSBs)
–1.0 –1.5 –2.0
0 512 1024 1536 2048 2560 3072 3584 4096
LINEARITY ERROR vs DIGITAL CODE
2.0
1.5
1.0
0.5 0
–0.5
Linearity Error (LSBs)
–1.0 –1.5 –2.0
0 512 1024 1536 2048 2560 3072 3584 4096
(DAC A at +85°C)
Code
(DAC A at +25°C)
Code
LINEARITY ERROR vs DIGITAL CODE
2.0
1.5
1.0
0.5 0
–0.5
Linearity Error (LSBs)
–1.0 –1.5 –2.0
0 512 1024 1536 2048 2560 3072 3584 4096
LINEARITY ERROR vs DIGITAL CODE
2.0
1.5
1.0
0.5 0
–0.5
Linearity Error (LSBs)
–1.0 –1.5 –2.0
0 512 1024 1536 2048 2560 3072 3584 4096
(DAC B at +85°C)
Code
(DAC B at +25°C)
Code
LINEARITY ERROR vs DIGITAL CODE
2.0
1.5
1.0
0.5 0
–0.5
Linearity Error (LSBs)
–1.0 –1.5 –2.0
0 512 1024 1536 2048 2560 3072 3584 4096
(DAC A at –40°C)
Code
LINEARITY ERROR vs DIGITAL CODE
2.0
1.5
1.0
0.5 0
–0.5
Linearity Error (LSBs)
–1.0 –1.5 –2.0
0 512 1024 1536 2048 2560 3072 3584 4096
9
(DAC B at –40°C)
Code
®
DAC7612
OPERATION
The DAC7612 is a dual, 12-bit digital-to-analog converter (DAC) complete with a serial-to-parallel shift register, DAC registers, laser-trimmed 12-bit DACs, on-board reference, and rail-to-rail output amplifiers. Figure 1 shows the basic operation of the DAC7612.
INTERFACE
Figure 1 shows the basic connection between a microcontroller and the DAC7612. The interface consists of a Serial Clock (CLK), Serial Data (SDI), and a Load DAC signal (LOADDACS). In addition, a chip select (CS) input is available to enable serial communication when there are multiple serial devices. Loading either DAC A or DAC B is done by shifting 14 serial bits in via the SDI input. The first 2 bits represent the address of the DAC to be updated and the
DAC7612 Full-Scale Range = 4.095V Least Significant Bit = 1mV
DIGITAL INPUT CODE ANALOG OUTPUT STRAIGHT OFFSETBINARY (V) DESCRIPTION
FFF
H
801
H
800
H
7FF
H
000
H
TABLE I. Digital Input Code and Corresponding Ideal
Analog Output.
+4.095 Full Scale +2.049 Midscale + 1 LSB +2.048 Midscale +2.047 Midscale – 1 LSB
0 Zero Scale
next 12 bits are the code (MSB-first) sent to the DAC. The data format is Straight Binary and is loaded MSB-first into the shift registers after loading the address bits. Table I shows the relationship between input code and output voltage.
The digital data into the DAC7612 is double-buffered. This means that new data can be entered into the chosen DAC without disturbing the old data and the analog output of the converter. At some point after the data has been entered into the serial shift register, this data can be transferred into the DAC registers. This transfer is accomplished with a HIGH to LOW transition of the LOADDACS pin. The LOADDACS pin makes the DAC registers transparent. If new data is shifted into the shift register while LOADDACS is LOW, the DAC output voltages will change as each new bit is entered. To prevent this, LOADDACS must be returned HIGH prior to shifting in new serial data.
DIGITAL-TO-ANALOG CONVERTER
The internal DAC section is a 12-bit voltage output device that swings between ground and the internal ref­erence voltage. The DAC is realized by a laser-trimmed R-2R ladder network which is switched by N-channel MOSFETs. Each DAC output is internally connected to a rail-to-rail output operational amplifier.
OUTPUT AMPLIFIER
A precision, low-power amplifier buffers the output of each DAC section and provides additional gain to achieve a 0V to
4.095V range. Each amplifier has low offset voltage, low
Serial Data
Serial Clock
Load DACs Chip Select
FIGURE 1. Basic Operation of the DAC7612.
SDI
1
CLK
2
LOADDACS
3
CS
4
DAC7612U
V
GND
V
OUTA
V
OUTB
8 7
DD
6
5
0V to +4.095V
+
0.1µF
0V to +4.095V
10µF
®
DAC7612
10
noise, and a set gain of 1.682V/V (4.095/2.435). See Figure 2 for an equivalent circuit schematic of the analog portion of the DAC7612.
The output amplifier has a 7µs typical settling time to ±1 LSB of the final value. Note that there are differences in the settling time for negative-going signals versus positive­going signals.
The rail-to-rail output stage of the amplifier provides the full­scale range of 0V to 4.095V while operating on a supply voltage as low as 4.75V. In addition to its ability to drive resistive loads, the amplifier will remain stable while driving capacitive loads of up to 500pF. See Figure 3 for an equivalent circuit schematic of the amplifier’s output driver and the Typical Performance Curves section for more information regarding settling time, load driving capability, and output noise.
POWER SUPPLY
A BiCMOS process and careful design of the bipolar and CMOS sections of the DAC7612 result in a very low power device. Bipolar transistors are used where tight matching and low noise are needed to achieve analog accuracy, and CMOS transistors are used for logic, switching functions and for other low power stages.
If power consumption is critical, it is important to keep the logic levels on the digital inputs (SDI, CLK, CS, LOADDACS) as close as possible to either VDD or ground. This will keep the CMOS inputs (see “Supply Current vs Logic Input Voltages” in the Typical Performance Curves) from shunting current between VDD and ground.
The DAC7612 power supply should be bypassed as shown in Figure 1. The bypass capacitors should be placed as close to the device as possible, with the 0.1µF capacitor taking priority in this regard. The “Power Supply Rejection vs Frequency” graph in the Typical Performance Curves sec­tion shows the PSRR performance of the DAC7612. This should be taken into account when using switching power supplies or DC/DC converters.
In addition to offering guaranteed performance with VDD in the 4.75V to 5.25V range, the DAC7612 will operate with reduced performance down to 4.5V. Operation between
4.5V and 4.75V will result in longer settling time, reduced performance, and current sourcing capability. Consult the “VDD vs Load Current” graph in the Typical Performance Curves section for more information.
Buffer
Bandgap
Reference
2.435V
FIGURE 2. Simplified Schematic of Analog Portion.
R-2R DAC
2R
2R
2R
2R
P-Channel
R
R
R
2R
Output Amplifier
R
2
R
1
Typical of DAC A or DAC B
V
DD
FIGURE 3. Simplified Driver Section of Output Amplifier.
N-Channel
11
V
OUT
GND
®
DAC7612
APPLICATIONS
POWER AND GROUNDING
The DAC7612 can be used in a wide variety of situations— from low power, battery operated systems to large-scale industrial process control systems. In addition, some appli­cations require better performance than others, or are par­ticularly sensitive to one or two specific parameters. This diversity makes it difficult to define definite rules to follow concerning the power supply, bypassing, and grounding. The following discussion must be considered in relation to the desired performance and needs of the particular system.
A precision analog component requires careful layout, ad­equate bypassing, and a clean, well-regulated power supply. As the DAC7612 is a single-supply, +5V component, it will often be used in conjunction with digital logic, microcontrollers, microprocessors, and digital signal proces­sors. The more digital logic present in the design and the higher the switching speed, the more difficult it will be to achieve good performance.
Because the DAC7612 has a single ground pin, all return currents, including digital and analog return currents, must flow through this pin. The GND pin is also the ground
reference point for the internal bandgap reference. Ideally, GND would be connected directly to an analog ground plane. This plane would be separate from the ground con­nection for the digital components until they are connected at the power entry point of the system (see Figure 4).
The power applied to VDD should be well regulated and low­noise. Switching power supplies and DC/DC converters will often have high-frequency glitches or spikes riding on the output voltage. In addition, digital components can create similar high frequency spikes as their internal logic switches states. This noise can easily couple into the DAC output voltage through various paths between VDD and V
OUT
.
As with the GND connection, VDD should be connected to a +5V power supply plane or trace that is separate from the connection for digital logic until they are connected at the power entry point. In addition, the 10µF and 0.1µF capaci­tors shown in Figure 4 are strongly recommended and should be installed as close to VDD and ground as possible. In some situations, additional bypassing may be required such as a 100µF electrolytic capacitor or even a “Pi” filter made up of inductors and capacitors—all designed to essen­tially lowpass filter the +5V supply, removing the high frequency noise (see Figure 4).
+5V Power Supply
+5V
GND
100µF
Optional
Digital Circuits
+5V
GND
+
+
10µF
Analog
Components
Other
0.1µF
DAC7612
V
DD
GND
FIGURE 4. Suggested Power and Ground Connections for a DAC7612 Sharing a +5V Supply with a Digital System.
®
DAC7612
12
PACKAGE OPTION ADDENDUM
www.ti.com
8-Jan-2007
PACKAGING INFORMATION
Orderable Device Status
(1)
Package
Type
Package Drawing
Pins Package
Qty
Eco Plan
DAC7612U ACTIVE SOIC D 8 100 Green (RoHS &
no Sb/Br)
DAC7612U/2K5 ACTIVE SOIC D 8 2500 Green(RoHS &
no Sb/Br)
DAC7612U/2K5G4 ACTIVE SOIC D 8 2500 Green (RoHS &
no Sb/Br)
DAC7612UB ACTIVE SOIC D 8 100 Green (RoHS &
no Sb/Br)
DAC7612UB/2K5 ACTIVE SOIC D 8 2500 Green (RoHS &
no Sb/Br)
DAC7612UB/2K5G4 ACTIVE SOIC D 8 2500 Green (RoHS &
no Sb/Br)
DAC7612UBG4 ACTIVE SOIC D 8 100 Green (RoHS &
no Sb/Br)
DAC7612UG4 ACTIVE SOIC D 8 100 Green (RoHS &
no Sb/Br)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device.
(2)
Lead/Ball Finish MSL Peak Temp
CU NIPDAU Level-3-260C-168 HR
CU NIPDAU Level-3-260C-168 HR
CU NIPDAU Level-3-260C-168 HR
CU NIPDAU Level-3-260C-168 HR
CU NIPDAU Level-3-260C-168 HR
CU NIPDAU Level-3-260C-168 HR
CU NIPDAU Level-3-260C-168 HR
CU NIPDAU Level-3-260C-168 HR
(3)
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
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Addendum-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
TAPE AND REEL INFORMATION
11-Mar-2008
*All dimensions are nominal
Device Package
DAC7612U/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
DAC7612UB/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
Type
Package Drawing
Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0 (mm) B0 (mm) K0 (mm) P1
(mm)W(mm)
Pin1
Quadrant
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
11-Mar-2008
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
DAC7612U/2K5 SOIC D 8 2500 346.0 346.0 29.0
DAC7612UB/2K5 SOIC D 8 2500 346.0 346.0 29.0
Pack Materials-Page 2
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