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Texas Instruments DACx1416 Digital-to-Analog Converters (DACs)

Texas Instruments DACx1416 Digital-to-Analog Converters (DACs) are a pin-compatible family of 16-channel, buffered, high-voltage output digital-to-analog converters (DACs) with 16, 14, and 12-bit resolution. The Texas Instruments DACx1416 includes a low drift, 2.5V internal reference, eliminating the need for an external precision reference in most applications. These devices are specified monotonic and provide high linearity of ±1LSB INL.

A user-selectable output configuration enables full-scale bipolar output voltages: ±20V, ±10V, ±5V or ±2.5V, and full-scale unipolar output voltages: 40V, 20V, 10V or 5V. The full-scale output range for each DAC channel is independently programmable. The integrated DAC output buffers can sink or source up to 25mA, thus limiting the need for additional operational amplifiers. Each pair of channels can be configured to provide a differential output with offset calibration. The three dedicated A-B toggle pins enable dither signal generation with up to three possible frequencies.

Features

  • Performance
    • Specified monotonic at 16-bit resolution
    • INL: ±1LSB (maximum) at 16-bit resolution
    • TUE: ±0.1% of FSR (maximum)
  • Integrated 2.5V precision internal reference
    • Initial accuracy of ±2.5mV (maximum)
    • A low drift of 5ppm/˚C (typical)
  • Flexible output configuration
    • Output range of ±2.5V, ±5V, ±10V, ±20V , 0 to 5V, 0 to 10V, 0 to 20V or 0 to 40V
    • Differential output mode
  • High drive capability of ±25mA with 1.5V from supply rails
  • Three dedicated A-B toggle pins for dither signal generation
  • Analog temperature output
    • Sensor gain of -4mV/˚C
  • 50MHz SPI-compatible serial interface
    • 4-wire mode, 1.7V to 5.5V operation
    • Daisy chain operation
    • CRC error check
  • –40˚C to +125˚C temperature range 
  • Small package
    • 6mm×6mm, 40-pin VQFN

Applications

  • Optical networking: Mach-Zehnder modulator bias control
  • Industrial automation
  • Test and measurement

Functional Block Diagram

Block Diagram - Texas Instruments DACx1416 Digital-to-Analog Converters (DACs)

Related Development Tools

Texas Instruments Module d'évaluation DAC81416-08EVM

Conçu pour démontrer facilement la fonctionnalité et la polyvalence des CNADAC81416 et DAC81408.

Learn Moreà propos de Texas Instruments Module d'évaluation DAC81416-08EVM View Productslié à Texas Instruments Module d'évaluation DAC81416-08EVM
Publié le: 2019-02-08 | Mis à jour le: 2024-09-10