Features and Benefits

  • Compact 5-lead TSOT package
  • Low Temperature Coefficient:
    B-Grade: 9 ppm/°C
    A-Grade: 25 ppm/°C
  • Initial accuracy
    B grade: ±4 mV maximum (ADR391)
    A grade: ±6 mV maximum
  • Ultralow output noise:
    5 μV p-p (0.1 Hz to 10 Hz)
  • Low Dropout Performance:
    300 mV
  • Low Supply Current:
    3 µA Maximum in Shutdown
    140 µA Maximum in Operation
  • No external capacitor required
  • Output Current Capability: 5mA
  • Automotive grade available
  • Wide Temperature
    Range: -40°C to +125°C

Product Details

The ADR391/ADR392/ADR395 are precision 2.5 V, 4.096 V, and 5 V band gap voltage references, respectively, featuring low power and high precision in a tiny footprint. Using patented temperature drift curvature correction techniques from Analog Devices, Inc., the ADR39x references achieve a low 9 ppm/°C of temperature drift in the TSOT package.

The ADR39x family of micropower, low dropout voltage references provides a stable output voltage from a minimum supply of 300 mV above the output. Their advanced design eliminates the need for external capacitors, which further reduces board space and system cost. The combination of low power operation, small size, and ease of use makes the ADR39x precision voltage references ideally suited for battery-operated applications.


  • Battery-powered instrumentation
  • Portable medical instrumentation
  • Data acquisition systems
  • Industrial process controls
  • Automotive

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.

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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.

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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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