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ADR127:  Precision, Micropower LD0 1.25 VOUT Voltage Reference in TSOT

Product Details

The ADR121/ADR125/ADR127 are a family of micropower, high precision, series mode, band gap references with sink and source capability. The parts feature high accuracy and low power consumption in a tiny package. The ADR12x design includes a patented temperature-drift curvature correction technique that minimizes the nonlinearities in the output voltage vs. temperature characteristics.

The ADR12x is a low dropout voltage reference, requiring only 300 mV for ADR121/ADR125 and 1.45 V for ADR127 above the nominal output voltage on the input to provide a stable output voltage. This low dropout performance, coupled with the low 85 μA operating current, makes the ADR12x ideal for battery-powered applications.

Available in an extended industrial temperature range of −40°C to +125°C, the ADR121/ADR125/ADR127 are housed in the tiny TSOT (UJ-6) package.


  • Battery-powered instrumentation
  • Portable medical equipment
  • Data acquisition systems
  • Automotive


  • Initial accuracy
    A grade: ±0.24%
    B grade: ±0.12%
  • Maximum temperature coefficient
    A grade: 25 ppm/°C
    B grade: 9 ppm/°C
  • Low dropout: 300 mV for ADR121, ADR125
  • High output current: +5 mA/−2 mA
  • Low typical operating current: 85 μA
  • Input range: 2.7 V to 18 V for ADR127
  • Temperature range: −40°C to +125°C
  • Tiny TSOT (UJ-6) package

Pin Configuration Diagram for ADR127

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.

Product Recommendations & Reference Designs

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Price, packaging, availability

ADR127 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
ADR127AUJZ-R2 Status: Production 6 ld TSOT 6 Ind Reel, 250 $1.53 $1.53 Y  Material Info PCN Purchase
ADR127AUJZ-REEL7 Status: Production 6 ld TSOT 6 Ind Reel, 3000 - $1.11 Y  Material Info PCN Purchase Sample
ADR127BUJZ-REEL7 Status: Production 6 ld TSOT 6 Ind Reel, 3000 - $1.83 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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