Rainbow Electronics MAX5735 User Manual

General Description

The MAX5732–MAX5735 are 32-channel, 16-bit, voltageoutput, digital-to-analog converters (DACs). All devices accept a 3V external reference input. The devices include an internal offset DAC that allows all the outputs to be offset and a ground-sensing function, allowing output voltages to be referenced to a remote ground.

A 33MHz SPI™-/QSPI™-/MICROWIRE™- and digital signal processor (DSP)-compatible serial interface controls the MAX5732–MAX5735. Each DAC has a doublebuffered input structure that helps minimize the digital noise feedthrough from the digital inputs to the outputs, and allows for synchronous or asynchronous updating of the outputs. The MAX5732–MAX5735 also provide a DOUT that allows for read-back or daisy chaining multiple devices. The devices provide separate power inputs for the analog and digital sections and provide separate power inputs for the output buffer amplifiers. The MAX5732–MAX5735 include proprietary deglitch circuits to prevent output glitches at power-up and eliminate the need for power sequencing. The devices provide a software-shutdown mode to allow efficient power management. The MAX5732–MAX5735 consume 50µA of supply current in shutdown.

The MAX5732–MAX5735 provide buffered outputs that can drive 10kΩ in parallel with 100pF. The MAX5732 has a 0 to +5V output range; the MAX5733 has a 0 to +10V range; the MAX5734 has a -2.5V to +7.5V range; the MAX5735 has a -5V to +5V range. The MAX5732– MAX5735 are available in a 56-pin, 8mm x 8mm, thin QFN package in both the commercial (0°C to +70°C) and extended (-40°C to +85°C) temperature ranges.

Applications

Automatic Test Systems

Optical Router Controls

Industrial Process Controls

Arbitrary Function Generators

Avionics Equipment

Digital Offset/Gain Adjustment

Features

♦ Guaranteed Monotonic to 16 Bits

♦ 32 Individual DACs in an 8mm x 8mm, 56-Pin,

Thin QFN Package

♦ Four Output Voltage Ranges

0 to +5V 0 to +10V

-2.5V to +7.5V

-5V to +5V

♦ Buffered Voltage Outputs Capable of Driving

10kΩ || 100pF

♦ Glitch-Free Power-Up

♦ SPI-/QSPI-/MICROWIRE-/DSP-Compatible 33MHz

Serial Interface

MAX5732–MAX5735

32-Channel, 16-Bit, Voltage-Output

DACs with Serial Interface

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-3148; Rev 1; 5/04

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

EVALUATION KIT

AVAILABLE

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

Pin Configuration and Selector Guide appear at end of data sheet.

*Future product—contact factory for availability. Specifications are preliminary.

**EP = Exposed paddle (internally connected to V

PART TEMP RANGE PIN-PACKAGE

MAX5732ACTN* 0°C to +70°C 56 Thin QFN-EP**

MAX5732BCTN 0°C to +70°C 56 Thin QFN-EP**

MAX5732AETN* -40°C to +85°C 56 Thin QFN-EP**

MAX5732BETN -40°C to +85°C 56 Thin QFN-EP**

MAX5733ACTN* 0°C to +70°C 56 Thin QFN-EP**

MAX5733BCTN 0°C to +70°C 56 Thin QFN-EP**

MAX5733AETN* -40°C to +85°C 56 Thin QFN-EP**

MAX5733BETN -40°C to +85°C 56 Thin QFN-EP**

MAX5734ACTN* 0°C to +70°C 56 Thin QFN-EP**

MAX5734BCTN 0°C to +70°C 56 Thin QFN-EP**

MAX5734AETN* -40°C to +85°C 56 Thin QFN-EP**

MAX5734BETN -40°C to +85°C 56 Thin QFN-EP**

MAX5735ACTN* 0°C to +70°C 56 Thin QFN-EP**

MAX5735BCTN 0°C to +70°C 56 Thin QFN-EP**

MAX5735AETN* -40°C to +85°C 56 Thin QFN-EP**

MAX5735BETN -40°C to +85°C 56 Thin QFN-EP**

MAX5732–MAX5735

32-Channel, 16-Bit, Voltage-Output DACs with Serial Interface

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—MAX5732 (0 to +5V Output Voltage Range)

(AVCC= +5.25V to +5.5V (Note 1), AVDD= +5V ±5%, DVDD= +2.7V to AVDD, VSS= AGND = DGND = REFGND = GS = 0, V

REF

+3.0V, R

= ∞, CL= 50pF referenced to ground, TA = T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

AVCCto VSS, AGND, DGND, REFGND ..................-0.3V to +12V

to AGND, DGND................................................-6V to +0.3V

, DVDDto AGND, DGND, REFGND.................-0.3V to +6V

AGND to DGND.....................................................-0.3V to +0.3V

REF to AGND, DGND,

REFGND...............-0.3V to the lower of (AV

+ 0.3V) and +6V

REFGND to AGND.................................................-0.3V to +0.3V

Digital Inputs to AGND, DGND,

REFGND..............-0.3V to the lower of (DVDD+ 0.3V) and +6V

DOUT to DGND.......-0.3V to the lower of (DV

+ 0.3V) and +6V OUT_ to V

.........-0.3V to the lower of (AVCC+ 0.3V) and +12V

GS to AGND ................................................................-1V to +1V

Maximum Current into REF...............................................±10mA

Maximum Current into Any Pin .........................................±50mA

Continuous Power Dissipation (T

= +70°C)

Thin QFN (derate 31.3mW/°C above +70°C)...................2.5W

Operating Temperature Ranges

MAX573__CTN....................................................0°C to +70°C

MAX573__ETN.................................................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

DC CHARACTERISTICS

Resolution N 16 Bits

Integral Nonlinearity INL MAX5732B (Note 2) ±8 ±16 LSB

Differential Nonlinearity DNL Guaranteed monotonic (Note 3) ±1 LSB

Zero-Scale Error

Full-Scale Error

Gain Error ±0.1 ±0.5 %FSR

Gain Temperature Coefficient 20 40

DC Crosstalk VSS = -0.5V, AVCC = +5V (Note 5) 50 250 µV

DYNAMIC CHARACTERISTICS

Output-Voltage Settling Time

Voltage-Output Slew Rate 1 V/µs

Digital Feedthrough (Note 6) 5 nV-s

Digital Crosstalk (Note 7) 5 nV-s

Digital-to-Analog Glitch Impulse Major carry transition 120 nV-s

DAC-to-DAC Crosstalk (Note 8) 15 nV-s

Output Noise Spectral Density at 1kHz

ANALOG OUTPUTS (OUT0 to OUT31)

Output Voltage Range VSS = -0.5V, AVCC = +5V 0 5 V Resistive Load to Ground 10 50 kΩ

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

VSS = -0.5V, AVCC = +5.25V (Note 4) ±8 ±40 mV

(Note 4) ±8 ±50 mV

Full-scale change to ±0.5 LSB 20 µs

Full-scale code 250 nV/√Hz

ppm

FSR/°C

MAX5732–MAX5735

32-Channel, 16-Bit, Voltage-Output

DACs with Serial Interface

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—MAX5732 (0 to +5V Output Voltage Range) (continued)

(AVCC= +5.25V to +5.5V (Note 1), AVDD= +5V ±5%, DVDD= +2.7V to AVDD, VSS= AGND = DGND = REFGND = GS = 0, V

REF

+3.0V, R

= ∞, CL= 50pF referenced to ground, TA = T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Capacitive Load to Ground 50 100 pF DC Output Impedance 0.1 Ω

Sourcing, full-scale code, output connected to AGND

Short-Circuit Current

Sinking, zero-scale code, output connected to AV

-5

GROUND-SENSE ANALOG INPUT (GS)

Input Voltage Range V

Relative to AGND

GS Gain A

V/V

Input Resistance -0.5V ≤ VGS ≤ +0.5V, VSS = -0.5V 35 kΩ

REFERENCE INPUT (REF)

Input Resistance 1MΩ

Reference Input Voltage Range

REF

Referred to REFGND

DIGITAL INPUTS (CS, SCLK, DIN, LDAC, CLR, DSP)

DVDD = +2.7V to +3.6V

Input-Voltage High V

DVDD = +4.75V to +5.25V 2.4

Input-Voltage Low V

0.8 V

Input Capacitance C

10 pF

Input Current I

Digital inputs = 0 or DV

±1 µA

POWER REQUIREMENTS (AVCC, VSS, AGND, AVDD, DVDD, DGND)

Output-Amplifier Positive Supply Voltage

Output-Amplifier Negative Supply Voltage

Output-Amplifier Supply Voltage Difference

- V

Analog Supply Voltage AV

Digital Supply Voltage DV

OUT0

through V

OUT31

= 0 10 15 mA

Analog Supply Current AI

Software shutdown 10 µA

VIH = DVDD, VIL = 0, f

SCLK

= 20MHz 2.5 3.5

Digital Supply Current DI

VIH = +2.4V, VIL = +0.8V, f

SCLK

= 20MHz 5 6.5

OUT0

through V

OUT31

= 0 4 10

Output-Amplifier Positive Supply Current

Software shutdown 20

-4 -10 mA

Output-Amplifier Negative Supply Current

VSS = -0.5V

Software shutdown -20 µA

Power-Supply Rejection Ratio

PSRR -95 dB

-0.5 +0.5

0.995 1.000 1.005

2.900 3.000 3.100

0.7 ×

4.75 5.50

-0.5

4.75 5.25

2.70 5.25

OUT0

through V

OUT31

= 0

5.75

MAX5732–MAX5735

32-Channel, 16-Bit, Voltage-Output DACs with Serial Interface

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—MAX5733 (0 to +10V Output Voltage Range)

(AVCC= +10.5V to +11V, AVDD= 5V ±5%, DVDD= +2.7V to AVDD, VSS= AGND = DGND = REFGND = GS = 0, V

REF

= +3.0V,

= ∞, CL= 50pF referenced to ground, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.)

DC CHARACTERISTICS

Resolution N 16 Bits

Integral Nonlinearity INL MAX5733B (Note 2) ±8 ±16 LSB

Differential Nonlinearity DNL Guaranteed monotonic (Note 3) ±1 LSB

Zero-Scale Error V

Full-Scale Error

Gain Error ±0.1 ±0.5 % FSR

Gain Temperature Coefficient 20

DC Crosstalk VSS = -0.5V, AVCC = +10V (Note 5) 50 250 µV

DYNAMIC CHARACTERISTICS

Output-Voltage Settling Time

Voltage-Output Slew Rate 1 V/µs

Digital Feedthrough (Note 6) 5 nV-s

Digital Crosstalk (Note 7) 5 nV-s

Digital-to-Analog Glitch Impulse Major carry transition 120 nV-s

DAC-to-DAC Crosstalk (Note 8) 15 nV-s

Output Noise Spectral Density at 1kHz

ANALOG OUTPUTS (OUT0 to OUT31)

Output Voltage Range VSS = -0.5V, AVCC = +10.5V 0 10 V Resistive Load to Ground 10 50 kΩ

Capacitive Load to Ground 50 100 pF DC Output Impedance 0.1 Ω

Short-Circuit Current

GROUND-SENSE ANALOG INPUT (GS)

Input Voltage Range V

GS Gain A Input Resistance -0.5V ≤ VGS ≤ +0.5V, VSS = -0.5V 70 kΩ

REFERENCE INPUT (REF)

Input Resistance 1MΩ

Reference Input Voltage Range

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

REF

VSS = -0.5V, AVCC = +10V (Note 4) ±8 ±40 mV

(Note 4) ±8 ±50 mV

Full-scale change to ±0.5 LSB 20 µs

Full-scale code 250 nV/√Hz

Sourcing, full scale, output connected to AGND

Sinking, zero scale, output connected to AV

Relative to AGND -0.5 +0.5 V

Referred to REFGND 2.900 3.000 3.100 V

0.995 1.000 1.005 V/V

-5

ppm

FSR/°C

MAX5732–MAX5735

32-Channel, 16-Bit, Voltage-Output

DACs with Serial Interface

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS—MAX5733 (0 to +10V Output Voltage Range) (continued)

(AVCC= +10.5V to +11V, AVDD= 5V ±5%, DVDD= +2.7V to AVDD, VSS= AGND = DGND = REFGND = GS = 0, V

REF

= +3.0V,

= ∞, CL= 50pF referenced to ground, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.)

DIGITAL INPUTS (CS, SCLK, DIN, LDAC, CLR, DSP)

Input-Voltage Low V

Input Capacitance C

Input Current I

POWER REQUIREMENTS (AVCC, V

Output-Amplifier Positive Supply Voltage

Output-Amplifier Negative Supply Voltage

Output-Amplifier Supply Voltage Difference

Analog Supply Voltage AV

Digital Supply Voltage DV

Analog Supply Current AI

Digital Supply Current DI

Output-Amplifier Positive Supply Current

Output-Amplifier Negative Supply Current

Power-Supply Rejection Ratio PSRR -95 dB

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

, AGND, AV

DVDD = +2.7V to +3.6V

DVDD = +4.75V to +5.25V 2.4

Digital inputs = 0 or DV

OUT0

Software shutdown 10 µA

VIH = DVDD, VIL = 0, f

VIH = +2.4V, VIL = +0.8V, f

OUT0

Software shutdown 20 µA

VSS = -0.5V

0.7 ×

DDInput-Voltage High V

, DVDD, DGND)

10 11 V

-0.5 0 V

- V

4.75 5.25 V

2.70 5.25 V

through V

= 0 10 15 mA

OUT31

= 20MHz 2.5 3.5

SCLK

= 20MHz 5 6.5

SCLK

= 0 4 10 mA

OUT31

through V

OUT0

Software shutdown -20 µA

= 0 -4 -10 mA

OUT31

10 pF

0.8 V

±1 µA

11 V

MAX5732–MAX5735

32-Channel, 16-Bit, Voltage-Output DACs with Serial Interface

6 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—MAX5734 (-2.5V to +7.5V Output Voltage Range)

(AVCC= +7.75V to +8.25V, AVDD= +5V ±5%, DVDD= +2.7V to AVDD, VSS= -2.75V to -3.25V, AGND = DGND = REFGND = GS = 0, program the offset DAC to 4000hex. V

REF

= +3.0V, RL= ∞, CL= 50pF referenced to ground, TA= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DC CHARACTERISTICS

Resolution N 16 Bits

Integral Nonlinearity INL MAX5734B (Note 2) ±8 ±16 LSB

Differential Nonlinearity DNL Guaranteed monotonic (Note 3) ±1 LSB

Zero-Scale Error

Full-Scale Error

Gain Error ±0.1 ±0.5 %FSR

Gain Temperature Coefficient 20

DC Crosstalk VSS = -3.25V, AVCC = +7.75V (Note 4) 50 250 µV

DYNAMIC CHARACTERISTICS

Output-Voltage Settling Time

Voltage-Output Slew Rate 1 V/µs

Digital Feedthrough (Note 6) 5 nV-s

Digital Crosstalk (Note 7) 5 nV-s

Digital-to-Analog Glitch Impulse Major carry transition 120 nV-s

DAC-to-DAC Crosstalk (Note 8) 15 nV-s

Output Noise Spectral Density at 1kHz

ANALOG OUTPUTS (OUT0 to OUT31)

Output Voltage Range VSS = -2.75V, AVCC = +7.75V -2.5 +7.5 V Resistive Load to Ground 10 50 kΩ

Capacitive Load to Ground 50 100 pF DC Output Impedance 0.1 Ω

Short-Circuit Current

GROUND-SENSE ANALOG INPUT (GS)

Input Voltage Range V

GS Gain A Input Resistance -0.5V ≤ VGS ≤ +0.5V, VSS = -0.5V 70 kΩ

REFERENCE INPUT (REF)

Input Resistance 1MΩ

Reference Input Voltage Range

REF

VSS = -3.25V, AVCC = +7.75V (Note 4) ±8 ±40 mV

(Note 4) ±8 ±50 mV

Full-scale change to ±0.5 LSB 20 µs

Full-scale code 250 nV/√Hz

Sourcing, full scale, output connected to AGND

Sinking, zero scale, output connected to AV

Relative to AGND -0.5 +0.5 V

Referred to REFGND 2.900 3.000 3.100 V

0.995 1.000 1.005 V/V

-5

ppm

FSR/°C

MAX5732–MAX5735

32-Channel, 16-Bit, Voltage-Output

DACs with Serial Interface

_______________________________________________________________________________________ 7

ELECTRICAL CHARACTERISTICS—MAX5734 (-2.5V to +7.5V Output Voltage Range) (continued)

(AVCC= +7.75V to +8.25V, AVDD= +5V ±5%, DVDD= +2.7V to AVDD, VSS= -2.75V to -3.25V, AGND = DGND = REFGND = GS = 0, program the offset DAC to 4000hex. V

REF

= +3.0V, RL= ∞, CL= 50pF referenced to ground, TA= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DIGITAL INPUTS (CS, SCLK, DIN, LDAC, CLR, DSP)

Input-Voltage Low V

Input Capacitance C

Input Current I

POWER REQUIREMENTS (AVCC, VSS, AGND, AVDD, DVDD, DGND)

Output-Amplifier Positive Supply Voltage

Output-Amplifier Negative Supply Voltage

Output-Amplifier Supply Voltage Difference

Analog Supply Voltage AV

Digital Supply Voltage DV

Analog Supply Current AI

Digital Supply Current DI

Output-Amplifier Positive Supply Current

Output-Amplifier Negative Supply Current

Power-Supply Rejection Ratio PSRR -95 dB

DVDD = +2.7V to +3.6V

DVDD = +4.75V to +5.25V 2.4

Digital inputs = 0 or DV

- V

through V

OUT0

Software shutdown 10 µA

VIH = DVDD, VIL = 0, f

VIH = +2.4V, VIL = +0.8V, f

through V

OUT0

Software shutdown 20 µA

VSS = -2.75V

= 0 10 15 mA

OUT31

= 20MHz 2.5 3.5

SCLK

= 20MHz 5 6.5

SCLK

= 0 4 10 mA

OUT31

through V

OUT0

Software shutdown -20 µA

= 0 -4 -10 mA

OUT31

0.7 ×

DDInput-Voltage High V

7.50 8.25 V

-3.25 -2.50 V

4.75 5.25 V

2.70 5.25 V

0.8 V

10 pF

±1 µA

11 V

MAX5732–MAX5735

32-Channel, 16-Bit, Voltage-Output DACs with Serial Interface

8 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—MAX5735 (-5V to +5V Output Voltage Range)

(AVCC= +5.25V to +5.5V, AVDD= +5V ±5%, DVDD= +2.7V to AVDD, VSS= -5.25V to -5.5V, AGND = DGND = REFGND = GS = 0, program the offset DAC to 8000hex. V

REF

= +3.0V, RL= ∞, CL= 50pF referenced to ground, TA= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DC CHARACTERISTICS

Resolution N 16 Bits

Integral Nonlinearity INL MAX5735B (Note 2) ±8 ±16 LSB

Differential Nonlinearity DNL Guaranteed monotonic (Note 3) ±1 LSB

Zero-Scale Error V

Full-Scale Error (Note 4) ±8 ±50 mV

Gain Error ±0.1 ±0.5 %FSR

Gain Temperature Coefficient 20

DC Crosstalk VSS = -5.75V, AVCC = +5.25V (Note 5) 50 250 µV

DYNAMIC CHARACTERISTICS

Output-Voltage Settling Time Full-scale change to ±0.5 LSB 20 µs

Voltage-Output Slew Rate 1 V/µs

Digital Feedthrough (Note 6) 5 nV-s

Digital Crosstalk (Note 7) 5 nV-s

Digital-to-Analog Glitch Impulse Major carry transition 120 nV-s

DAC-to-DAC Crosstalk (Note 8) 15 nV-s

Output Noise Spectral Density at 1kHz

ANALOG OUTPUTS (OUT0 through OUT31)

Output Voltage Range VSS = -5.25V, AVCC = +5.25V -5 +5 V Resistive Load to Ground 10 50 kΩ

Capacitive Load to Ground 50 100 pF DC Output Impedance 0.1 Ω

Short-Circuit Current

GROUND-SENSE ANALOG INPUT (GS)

Input Voltage Range V

GS Gain A Input Resistance -0.5V ≤ VGS ≤ +0.5V, VSS = -0.5V 70 kΩ

REFERENCE INPUT (REF)

Input Resistance 1MΩ

Reference Input Voltage Range V

VSS = -5.25V, AVCC = +5.25V (Note 4) ±8 ±40 mV

Full-scale code 250 nV/√Hz

Sourcing, full scale, output connected to AGND

Sinking, zero scale, output connected to AV

Relative to AGND -0.5 +0.5 V

Referred to REFGND 2.900 3.000 3.100 V

REF

0.995 1.000 1.005 V/V

-5

ppm

FSR/°C

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