Texas Instruments DACx3608 Low-Power Digital-to-Analog Converters

Texas Instruments DACx3608 Low-Power Digital-to-Analog Converters (DACs) are eight-channel, voltage-output, 10-bit, or 8-bit digital-to-analog converters (DACs), respectively. The DACx3608 are specified monotonic by design across a wide power supply range from 1.8V to 5.5V. Using an external reference, the DACx3608 provides a full-scale output voltage range of 1.8V to 5.5V while consuming 0.1mA quiescent current per channel. The DACx3608 also includes per channel, user programmable, and power-down registers. These registers facilitate the DAC output buffers to start in a power-down to 10K state and remain in this state until a power-up command is issued to these output buffers.

Low quiescent current, wide power supply range and per-channel power-down options make the DACx3608 ideal for low-power, battery-operated systems. These devices communicate through the I2C interface. The Texas Instruments DACx3608 support I2C standard mode (100kbps), fast mode (400kbps), and fast+ mode (1Mbps). These devices also have a load DAC (LDAC) pin that allows simultaneous DAC updates.

Features

  • ±1-LSB INL and DNL
  • Wide operating range
    • 1.8V to 5.5V power supply 
    • –40˚C to 125˚C temperature range 
  • I2C™ serial interface
    • Standard, fast, and Fast+ mode
    • 2.4V, VIH with VDD = 5.5V
  • LDAC pin for simultaneous output update
  • 0.1mA/channel at 1.8V very low power 
  • Low power startup mode with outputs powered down to 10K state
  • Tiny package
    • 16-pin WQFN (3mm×3mm)

Applications

  • Programmable power supplies
  • Programmable window comparator
  • VCOM biasing in a display panel
  • Laser driver in multifunction printers
  • Autofocus digital still cameras lens
  • ATM machines, currency counters, barcode readers
  • IP network cameras, projectors

Functional Block Diagram

Block Diagram - Texas Instruments DACx3608 Low-Power Digital-to-Analog Converters
Paskelbta: 2019-02-07 | Atnaujinta: 2023-06-20