Texas Instruments DACx3204W Smart Digital-to-Analog Converters

Texas Instruments DACx3204W Smart Digital-to-Analog Converters (DACs) are quad-channel, buffered, voltage-output, and current-output smart DACs. This device supports Hi-Z power-down mode and Hi-Z output during power-off conditions. The DAC outputs provide a force-sense option for use as a programmable comparator and current source or sink. The multifunction GPIO, function generation, and NVM enable this smart DAC for processor-less applications and design reuse. This device automatically detects I2C, SPI, and PMBus interfaces and contains an internal reference. The feature set combined with the tiny package and low power makes this Texas Instruments DACx3204W smart DAC an excellent choice for applications such as voltage margining and scaling, DC set-point for biasing and calibration, and waveform generation.

Features

  • Programmable voltage or current outputs with flexible configuration
    • Voltage outputs
      • 1LSB DNL
      • 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 VDD is off
  • High-impedance and resistive-pulldown power-down modes
  • 50MHz SPI-compatible interface
  • Automatically detects I2C, SPI, or PMBus® Interface
    • 1.62V VIH with VDD = 5.5V
  • General-purpose input/output (GPIO) configurable to multiple functions
  • Predefined waveform generation: sine wave, triangular, 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 temperature range
  • 16-pin DSBGA (1.75mm × 1.75mm) tiny package

Applications

  • Optical module
  • Standard notebook PC

Functional Block Diagram

Block Diagram - Texas Instruments DACx3204W Smart Digital-to-Analog Converters
Paskelbta: 2023-02-13 | Atnaujinta: 2024-06-04