Features and Benefits

  • 1 ppm resolution
  • 1 ppm INL
  • 7.5 nV/√Hz noise spectral density
  • 0.19 LSB long term linearity stability
  • <0.05 ppm/°C temperature drift
  • 1μs settling time
  • 1.4 nV-sec glitch impulse
  • Operating temperature range: −40°C to +125°C
  • 20-Lead TSSOP package
  • Wide power supply range up to ±16.5 V
  • 35 MHz Schmitt triggered digital interface
  • 1.8 V compatible digital interface
AD5791-EP supports defense and aerospace applications (AQEC standard)
  • Download the AD5791-EP Data Sheet (pdf)
  • Military temperature range (−55°C to +125°C)
  • Controlled manufacturing baseline
  • One assembly/test site
  • One fabrication site
  • Enhanced product change notification
  • Qualification data available on request
  • V62/12664 DSCC Drawing Number

Product Details

The AD57911 is a single 20-bit, unbuffered voltage-output DAC that operates from a bipolar supply of up to 33 V. The AD5791 accepts a positive reference input in the range 5 V to VDD – 2.5 V and a negative reference input in the range VSS + 2.5 V to 0 V. The AD5791 offers a relative accuracy specification of ±1 LSB max, and operation is guaranteed monotonic with a ±1 LSB differential nonlinearity (DNL) maximum specification.

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

Product Highlights

  1. 1 ppm Accuracy.
  2. Wide Power Supply Range up to ±16.5 V.
  3. Operating Temperature Range: −40°C to +125°C.
  4. Low 7.5 nV/√Hz Noise Spectral Density.
  5. Low 0.05 ppm/°C Temperature Drift.

  • Medical instrumentation
  • Test and measurement
  • Industrial control
  • High end scientific and aerospace instrumentation

1 Protected by U.S. Patent No. 7,884,747. Other patents pending.

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (2)

Tools & Simulations


LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.


Models for the following parts are available in LTspice:


Precision DAC Error Budget Tool

The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.

Precision DAC Error Budget Tool

IBIS Models

Reference Designs (2)

Product Recommendations

AD5791 Companion Parts

Recommended Output Amplifier

  • For high precision, wide bandwidth, R-R output swing: AD8675.
  • For high precision, low noise, small package: ADA4004-1.
  • For high voltage, high slew rates and low noise: ADA4898-1.

Recommended External Reference

  • For a dual reference buffer: AD8676.
  • For a precision, ultralow noise, 5V reference: ADR445, ADR4550.

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Support & Discussions

AD5791 Discussions

LT3439 as Low Noise DC-DC Converter
6 week(s) ago in Power Management
RE: Very low noise DAC
6 week(s) ago in Precision DACs
RE: AD5791 - No Stocks
7 week(s) ago in Precision DACs

Sample & Buy

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Evaluation Boards

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.