Analog Devices Inc. AD5679 & AD5679R 16-Bit, 16-Channel nanoDAC+

Analog Devices Inc. AD5679 and AD5679R 16-Bit, 16-Channel nanoDAC+ are low power buffered voltage output Digital-to-Analog Converters. The AD5679R variant includes a 2.5V, 2ppm/°C internal reference, which is enabled by default. The AD5679 requires an external reference. The AD5679 and AD5679R DACs feature a 50MHz Serial Peripheral Interface (SPI) with readback or daisy chain. Both devices operate from a single 2.7V to 5.5V supply range and are guaranteed monotonic by design. These devices incorporate a Power-On Reset (POR) circuit that ensures the DAC outputs power up to and remains at zero-scale or midscale until a valid write. Analog Devices Inc. AD5679 and AD5679R DACs also feature a power-down mode that reduces the current consumption to 2μA. These devices are available in a compact 28-lead Lead Frame Chip Scale Package (LFCSP) and are RoHS compliant.

Features

  • High performance
    • High relative accuracy (INL): ±4LSB maximum at 16 bits
    • TUE: ±0.14% of FSR maximum
    • Offset error: ±1.5mV maximum
    • Gain error: ±0.06% of FSR maximum
    • Low drift 2.5V voltage reference temperature coefficient
      • 2ppm/°C typical
    • 40mA short-circuit current
  • Wide operating ranges
    • -40°C to +125°C temperature range
    • 2.7V to 5.5V power supply range
  • Simplified implementation
    • A user-selectable gain of 1 or 2 (GAIN pin)
    • 1.8V logic compatibility
  • 50MHz SPI with readback or daisy chain
  • 28-lead, 4mm x 4mm, RoHS-compliant LFCSP

Applications

  • Optical transceivers
  • Base station power amplifiers
  • Process control (programmable logic controller (PLC) input/output cards)
  • Industrial automation
  • Data acquisition systems

Block Diagram

Block Diagram - Analog Devices Inc. AD5679 & AD5679R 16-Bit, 16-Channel nanoDAC+
Published: 2019-09-27 | Updated: 2022-03-11