Analog Devices Inc. AD5791 Voltage Output DACs

Analog Devices AD5791 Single, 20-bit, Unbuffered, Voltage Output DACs operate from a bipolar supply of up to 33V. The AD5791 features 1ppm accuracy, a low 7.5nV/√Hz noise spectral density, and a wide power supply range of up to ±16.5V. The DACs assume a positive reference input in the range of 5V to VDD–2.5V and a negative reference input in the range of VSS +2.5V to 0V. Analog Devices AD5791 provides a relative accuracy specification of ±1LSB max. This operation is guaranteed monotonic with a ±1LSB DNL max specification.

The AD5791 employs a versatile 3-wire serial interface that operates at clock rates up to 35MHz and that is compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards. The device incorporates a power-on reset circuit that ensures the DAC output powers up to 0V. In a known output impedance state, the DACs remain until a valid write to the device takes place. Additionally, the AD5791 offers an output clamp feature that places the output in a defined load state.


  • 1ppm resolution
  • 1ppm INL
  • 7.5nV/√Hz noise spectral density
  • 0.19 LSB long-term linearity stability
  • <0.05ppm/°C temperature drift
  • 1μs settling time
  • 20-Lead TSSOP package
  • 1.4nV-sec glitch impulse
  • Up to ±16.5V wide power supply range
  • 35MHz Schmitt triggered digital interface
  • 1.8V compatible digital interface
  • -55°C to +125°C temperature range


  • Supports defense and aerospace applications (AQEC standard)
  • Medical instrumentation
  • Industrial control
  • Test and measurement
  • High-end scientific and aerospace instrumentation

Block Diagram

Block Diagram - Analog Devices Inc. AD5791 Voltage Output DACs
Publicado: 2018-12-19 | Atualizado: 2023-02-14