Overview

Features and Benefits

  • Single 18-bit DAC, ± 0.5 LSB INL
  • 7.5nV/√Hz Noise Spectral Density
  • 0.05 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 ±16.5V
  • 35 MHz Schmitt triggered Digital Interface
  • 1.8 V compatible digital interface
AD5781-EP supports defense and aerospace applications (AQEC standard)
  • Download the AD5781-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
  • V62/12661 DSCC Drawing Number

Product Details


The AD5781 is a single 18-bit, unbuffered voltage-output DAC that operates from a bipolar supply of up to 33 V. The AD5781 accepts a positive reference input in the range 5V to VDD – 2.5 V and a negative reference input in the range VSS + 2.5 V to 0 V. The AD5781 offers a relative accuracy specification of ±0.5 LSB max, and operation is guaranteed monotonic with a ±0.5 LSB DNL max specification.

The part uses a versatile 3-wire serial interface that operates at clock rates up to 35 MHz and that is compatible with standard SPI®, QSPI, MICROWIRE, and DSP interface standards. The part 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 part provides an output clamp feature that places the output in a defined load state.


Product Highlights
  1. True 18-Bit Accuracy.
  2. Wide Power Supply Range of Up to ±16.5 V.
  3. −40°C to +125°C Operating Temperature Range.
  4. Low 7.5 nV/√Hz Noise.
  5. Low 0.05 ppm/°C Temperature Drift.
Applications
  • Medical Instrumentation
  • Test and Measurement
  • Industrial Control
  • Scientific and Aerospace Instrumentation
  • Data Acquisition Systems
  • Digital Gain and Offset Adjustment
  • Power Supply Control

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 (1)

Reference Designs (1)

Product Recommendations

AD5781 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 precision, ultralow noise, 5V reference: ADR445, ADR4550.
  • For a dual reference buffer: AD8676.

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

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
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.