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REF03:  2.5 V Precision Voltage Reference

Product Details

The REF0x series of precision voltage references provide a stable 10.0 V, 5.0 V, or 2.5 V output with minimal change in response to variations in supply voltage, ambient temperature or load conditions. The parts are available in 8-lead SOIC, PDIP, CERDIP, and TO-99 packages, as well as 20-terminal LCC packages (883 only), furthering the parts’ usability in both standard and high stress applications.

With an external buffer and a simple resistor network, the TEMP terminal can be used for temperature sensing and approximation. A TRIM terminal is also provided on the device for fine adjustment of the output voltage.

The small footprint, wide supply range, and application versatility make the REF0x series of references ideal for general-purpose and space-constrained applications.

Newer designs should use the ADR0x series of references, which offer higher accuracy and temperature stability over a wider operating temperature range, while maintaining full pin-for-pin compatibility with the REF0x series. This data sheet applies to commercial-grade products only. Contact sales or visit for military-grade (883) data sheets.


  • Precision data systems
  • High resolution converters
  • Industrial process control systems
  • Precision instruments
  • Military and aerospace applications


  • High output accuracy:
    2.5 V output, ±0.6% maximum
  • Adjustable output: ± 3% minimum
  • Excellent temperature stability:
    50 ppm/°C maximum
  • Low noise: 6 μV p-p typical
  • High supply voltage range:
    up to 36 V maximum
  • Low supply current:
    1.4 mA maximum
  • High load-driving capability:
    10 mA maximum
  • Temperature output function

Pin Configuration Diagram for REF03

Design Tools,Models,Drivers & Software

Title Content Type File Type
Voltage Reference Selection & Evaluation Wizard Design Calculators HTML

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

REF03 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
REF03GPZ Status: Production 8 ld PDIP 8 Ind Tube, 50 $1.35 $1.33 Y  Material Info PCN Purchase
REF03GSZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.26 $1.25 Y  Material Info PCN Purchase
REF03GSZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $1.25 Y  Material Info PCN Purchase
Price Table Help

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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