Alternative Parts

  • ADR3450
    ADR3450

    Improved tempco and long term drift, and supply current

  • ADR3550
    ADR3550

    Micropower, Precision, Auto Qualified 5.0V Voltage Reference

Overview

Features and Benefits

  • 6.0 V to 15 V supply range
  • Supply current: 15 μA maximum
  • Low noise: 15 μV p-p typical (0.1 Hz to 10 Hz)
  • High output current: 5 mA
  • Temperature range: −40°C to +125°C
  • Pin-compatible with the REF02/REF19x
ADR293-EP supports defense and aerospace applications (AQEC standard)
  • Download ADR293-EP Data Sheet (pdf)
  • Military temperature range (−55°C to +125°C)
  • Controlled manufacturing baseline
  • 1 assembly/test site
  • 1 fabrication site
  • Enhanced product change notification
  • Qualification data available on request
  • V62/12641 DSCC Drawing Number

Product Details

The ADR293 is a low noise, micropower precision voltage reference that utilizes an XFET® (eXtra implanted junction FET) reference circuit. The XFET architecture offers significant performance improvements over traditional band gap and buried Zener-based references. Improvements include one quarter the voltage noise output of band gap references operating at the same current, very low and ultralinear temperature drift, low thermal hysteresis, and excellent long-term stability.

The ADR293 is a series voltage reference providing stable and accurate output voltage from a 6.0 V supply. Quiescent current is only 15 μA maximum, making this device ideal for battery powered instrumentation. Three electrical grades are available offering initial output accuracy of ±3 mV, ±6 mV, and ±10 mV. Temperature coefficients for the three grades are 8 ppm/°C, 15 ppm/°C, and 25 ppm/°C maximum. Line regulation and load regulation are typically 30 ppm/V and 30 ppm/mA, respectively, maintaining the reference’s overall high performance.

The ADR293 is specified over the extended industrial temperature range of –40°C to +125°C. This device is available in the 8-lead SOIC and 8-lead TSSOP packages.

The ADR293-EP support defense and aerospace applications (AQEC).

Applications

  • Portable instrumentation
  • Precision reference for 5 V systems
  • ADC and DAC reference
  • Solar-powered applications
  • Loop-current powered instruments

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Reference Materials

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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