MAX5702
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MAX5702

Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and SPI Interface

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Feature-Rich, 2-Channel DAC Family with Internal Voltage Reference and SPI Interface

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 3
1ku List Price Starting From $2.57
Features
  • Two High-Accuracy DAC Channels
    • 12-Bit Accuracy Without Adjustment
    • ±1 LSB INL Buffered Voltage Output
    • Monotonic Over All Operating Conditions
    • Independent Mode Settings for Each DAC
  • Three Precision Selectable Internal References
    • 2.048V, 2.500V, or 4.096V
  • Internal Output Buffer
    • Rail-to-Rail Operation with External Reference
    • 4.5µs Settling Time
    • Outputs Directly Drive 2kΩ Loads
  • Small 5mm x 3mm 10-Pin µMAX or Ultra-Small 3mm x 3mm 10-Pin TDFN Package
  • Wide 2.7V to 5.5V Supply Range
  • Separate 1.8V to 5.5V VDDIO Power-Supply Input
  • 50MHz 3-Wire SPI/QSPI/MICROWIRE/DSP-Compatible Serial Interface
  • Power-On-Reset to Zero-Scale DAC Output
  • Active-Low CLR For Asynchronous Control
  • Three Software-Selectable Power-Down Output Impedances
    • 1kΩ, 100kΩ, or High Impedance
  • Low 330µA Supply Current at 3V VDD
Additional Details
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The MAX5700/MAX5701/MAX5702 2-channel, low-power, 8-/10-/12-bit, voltage-output digital-to-analog converters (DACs) include output buffers and an internal reference that is selectable to be 2.048V, 2.500V, or 4.096V. The MAX5700/MAX5701/MAX5702 accept a wide supply voltage range of 2.7V to 5.5V with extremely low power (1.5mW) consumption to accommodate most low-voltage applications. A precision external reference input allows rail-to-rail operation and presents a 100kΩ (typ) load to an external reference.

The MAX5700/MAX5701/MAX5702 have an a 50MHz 3-wire SPI/QSPI/MICROWIRE®/DSP-compatible serial interface. The DAC output is buffered and has a low supply current of less than 250µA (max) per channel and a low offset error of ±0.5mV (typ). On power-up, the MAX5700/MAX5701/MAX5702 reset the DAC outputs to zero, providing additional safety for applications that drive valves or other transducers which need to be off on power-up. The internal reference is initially powered down to allow use of an external reference. The MAX5700/MAX5701/MAX5702 allow simultaneous output updates using software LOAD commands.

A clear logic input (active-low CLR) allows the contents of the CODE and the DAC registers to be cleared asynchronously and sets the DAC outputs to zero. The MAX5700/MAX5701/MAX5702 are available in a 10-pin µMAX® and an ultra-small, 10-pin TDFN package and are specified over the -40°C to +125°C temperature range.

Applications

  • Automatic Tuning and Optical Control
  • Data Acquisition
  • Gain and Offset Adjustment
  • Portable Instrumentation
  • Power Amplifier Control and Biasing
  • Process Control and Servo Loops
  • Programmable Voltage and Current Sources
Part Models 3
1ku List Price Starting From $2.57

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX5702AAUB+
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MAX5702BAUB+
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MAX5702BAUB+T
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Evaluation Kit

Evaluation Kits 1

MAX5X02EVKIT

Evaluation Kit for the MAX5700, MAX5701, MAX5702A/B, MAX5800, MAX5801, and MAX5802A/B

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MAX5X02EVKIT

Evaluation Kit for the MAX5700, MAX5701, MAX5702A/B, MAX5800, MAX5801, and MAX5802A/B

Evaluation Kit for the MAX5700, MAX5701, MAX5702A/B, MAX5800, MAX5801, and MAX5802A/B

Features and Benefits

  • 2.7V to 5.5V Wide Input Supply Range
  • Demonstrates 4.5µs Settling Time of Buffered Output
  • High Precision with ±1 LSB INL
  • 1kΩ, 100kΩ, or High-Z Selectable Output Termination
  • 2.048V, 2.500V, and 4.096V Precision 10ppm (max) Selectable Internal References
  • Demonstrates User-Supplied External Reference
  • Supports Entire Family of I²C and SPI 12-/10-/8-Bit DACs
  • Windows XP-, Windows Vista-, and Windows 7-Compatible Software
  • USB-Powered (Cable Included)
  • Fully Assembled and Tested with Proven PCB Layout

Product Detail

The MAX5X02 evaluation kit (EV kit) demonstrates the MAX5702 and MAX5802 12-bit, 2-channel, low-power DACs with internal reference and buffered voltage outputs. The EV kit provides controls to change the DAC outputs, power operations, and references.
The DAC ICs are controlled by an on-board MAXQ® microcontroller that provides two different selectable interface options: I²C and SPI. The EV kit features Windows XP®-, Windows Vista®-, and Windows® 7-compatible software that provides a simple graphical-user interface (GUI) for exercising the features of the ICs.
The EV kit comes with the MAX5702AAUB+ (SPI) and the MAX5802AAUB+ (I²C) installed. Contact the factory for samples of the pin-compatible MAX5700AUB+ (SPI, 8-bit), MAX5701AUB+ (SPI, 10-bit), MAX5702BAUB+ (SPI, 12-bit), MAX5800AUB+ (I²C, 8-bit), MAX5801AUB+ (I²C, 10-bit), MAX5802BAUB+ (I²C, 12-bit) versions.

Applications

  • Automatic Tuning and Optical Control
  • Data Acquisition
  • Gain and Offset Adjustment
  • Portable Instrumentation
  • Power Amplifier Control and Biasing
  • Process Control and Servo Loops
  • Programmable Voltage and Current Sources

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