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 Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

Documentation & Resources

  • View All (18)
  • Data Sheets (3)
  • User Guides (4)
  • Solutions Bulletins & Brochures (1)
  • Circuit Note (1)
  • Videos (5)
  • Technical Articles (4)
  • Tools & Simulations


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    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

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    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

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