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Texas Instruments DACx3701/DACx3701-Q1 Digital-to-Analog Converters

Texas Instruments DACx3701/DACx3701-Q1 Smart Digital-to-Analog Converters (DACs) are 10-bit (DAC53701/DAC53701-Q1) and 8-bit (DAC43701/DAC43701-Q1) are buffered voltage-output smart DACs. These devices consume very low power and are available in a tiny 8-pin WSON package. The feature set, combined with the tiny package and low power, make the DACx3701/DACx3701-Q1 an excellent choice for applications such as appliance door fade-in fade-out, processor-less LED dimming with PWM input, general-purpose bias point generation, voltage margining and scaling, PWM signal generation, and medical alarm tone generation.

These devices have a nonvolatile memory (NVM), an internal reference, a PMBus-compatible I2C interface, and a general-purpose input. The Texas Instruments DACx3701/DACx3701-Q1 operates with either an internal reference or the power supply as a reference, providing a full-scale output of 1.8V to 5.5V. The DACx3701/DACx3701-Q1 are smart DAC devices because of the devices' advanced integrated features. With force-sense output, GPI-based function trigger, medical alarm, PWM output, and NVM capabilities, smart DACs enable system performance and control without the use of software.

Features

  • 1 LSB INL and DNL (10-bit and 8-bit)
  • Wide operating range
    • 1.8V to 5.5V power supply
    • –40°C to +125°C temperature range
  • General-purpose input (GPI) based function trigger
  • PMBus™ compatible I2C interface
    • Standard, fast, and fast mode plus
    • Four device address options configured using the broadcast address
    • 1.62V VIH with VDD = 5.5V
  • User-programmable nonvolatile memory (NVM/EEPROM)
    • Save and recall all register settings
  • Programmable waveform generation: Square, triangular, and sawtooth
  • Pulse-width modulation (PWM) output using triangular waveform and FB pin
  • Preprogrammed medical-alarm tone-generation mode: low-, medium-, and high-priority alarms
  • Digital slew rate control
  • Internal reference
  • 0.2mA at 1.8V very low-power
  • Flexible start-up - High impedance or 10K-GND
  • 8-pin WSON (2mm × 2mm) tiny package

Applications

  • Oven
  • Ventilators
  • Infusion pump
  • Anesthesia delivery systems
  • Surgical equipment
  • Rack server
  • Exit and emergency lighting

Datasheets

Functional Block Diagram

Block Diagram - Texas Instruments DACx3701/DACx3701-Q1 Digital-to-Analog Converters

Related Development Tool

Texas Instruments DAC53701EVM DAC Evaluation Module (EVM)

Evaluates the performance of the commercial and automotive versions of DAC43701 and DAC53701.

Learn Moreabout Texas Instruments DAC53701EVM DAC Evaluation Module (EVM) View Productsrelated to Texas Instruments DAC53701EVM DAC Evaluation Module (EVM)
Published: 2021-02-05 | Updated: 2024-01-15