6‑Channel, 14‑Bit, Current Output DAC with On-Chip Reference

Date
04/30/2019

Categories:
Integrated Circuits (ICs), Voltage

Tag:
@adi_news @lineartech #AnalogDevices #psd #dac #onchip

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The AD5770R is a 6-channel, 14-bit resolution, low noise, programmable current output, digital-to-analog converter (DAC) for photonics control applications. The device incorporates a 1.25 V, on-chip voltage reference, a 2.5 kΩ precision resistor for reference current generation, die temperature, output monitoring functions, fault alarm, and reset functions.

The AD5770R contains five 14-bit resolution current sourcing DAC channels and one 14-bit resolution current sourcing and sinking DAC channel.

Channel 0 can be configured to sink up to 60 mA and source up to 300 mA. Channel 1 to Channel 5 have multiple programmable output current sourcing ranges set by register access.

Each DAC operates with a wide power supply rail from 0.8 V to AVDD − 0.4 V for optimizing power efficiency and thermal power dissipation.

The AD5770R operates from a 2.9 V to 5.5 V AVDD supply and is specified over the −40°C to +105°C temperature range.

For more information, visit www.analog.com.

Applications

  • Photonics control
  • LED driver programmable current source
  • Current mode biasing
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