Analog Devices Inc. AD5770R Current Output DAC

Analog Devices Inc. AD5770R Current Output DAC is a 6-channel, 14-bit resolution, low noise, programmable Digital-to-Analog Converter for photonics control applications. The AD5770R combines a 1.25V, on-chip voltage reference, a 2.5kΩ precision resistor for reference current generation, die temperature, output monitoring functions, fault alarm, and reset functions.

The AD5770R Current Output DAC features 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 60mA and source up to 300mA. Channel 1 to Channel 5 has multiple programmable output current sourcing ranges set by register access. The DACs each operate with a wide power supply rail from 0.8V to AVDD − 0.4V for optimizing power efficiency and thermal power dissipation.

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


  • 6-channel, current output DAC
  • 14-bit resolution
  • Programmable output current ranges
    • Channel 0: 0mA to 300mA, -60mA to +300mA, -60mA to 0mA
    • Channel 1: 0 mA to 140mA, 0mA to 250mA
    • Channel 2: 0mA to 55mA, 0mA to 150mA
    • Channel 3, Channel 4, Channel 5: 0mA to 45mA, 0mA to 100mA
    • All current sourcing output ranges scale back by up to 0.5×
  • 1.25V, on-chip voltage reference
  • Integrated precision reference resistor
  • SPI interface
  • Reset function
  • Output current monitor
  • Compliance voltage monitor
  • Die temperature monitor
  • Integrated thermal shutdown
  • 49-ball, 4mm × 4mm WLCSP package
  • Operating temperature: -40°C to +105°C


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


Block Diagram - Analog Devices Inc. AD5770R Current Output DAC


Publicado: 2019-09-30 | Atualizado: 2022-03-10