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Texas Instruments DACx3202 Precision Digital-to-Analog Converters

Texas Instruments DACx3202 Precision Digital-to-Analog Converters (DACs) are a pin-compatible family of dual-channel, buffered, voltage-output, and current-output smart DACs. The DAC63202 is a 12-bit device and the DAC53202 is a 10-bit device. The DACx3202 devices support Hi-Z power-down mode and Hi-Z output during power-off conditions. The outputs for these DACs provide a force-sense option for use as a current sink and a programmable comparator. The multifunction GPIO, NVM, and function generation enable these smart DACs for design reuse and processor-less applications. These devices contain an internal reference and automatically detect PMBus, SPI, and I²C interfaces.

The feature set combined with low power and the tiny package makes these Texas Instruments DACx3202 smart DACs an excellent choice for applications such as dc set-point for biasing and calibration, voltage margining and scaling, and waveform generation.

Features

Programmable voltage or current outputs with flexible configuration
- Voltage outputs
  - 1 LSB INL and DNL (10-bit and 8-bit)
  - Gains of 1x, 1.5x, 2x, 3x, and 4x
- Current outputs
  - 1LSB INL and DNL (8-bit)
  - ±25µA, ±50µA, ±125µA, ±250µA output range options
Programmable comparator mode for all channels
High-impedance output when V_DD is off
High-impedance and resistive pulldown power-down modes
50MHz SPI-compatible interface

Automatically detected I²C, PMBus™, or SPI interface
- 1.62V V_IH with V_DD = 5.5V
General-purpose input/output (GPIO) configurable as multiple functions
Predefined waveform generation (sine, cosine, triangular, and sawtooth)
User-programmable nonvolatile memory (NVM)
Internal, external, or power supply as reference
Wide operating range
- 1.8V to 5.5V power supply
- –40˚C to +125˚C operating temperature
16-pin WQFN (3 mm × 3 mm) package

Applications

Rack server
Optical module
Inter-DC interconnect (metro)

High-performance computing
Standard notebook PC

Texas Instruments DACx3202 Precision Digital-to-Analog Converters

Features

Applications

Functional Block Diagram

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