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ADR550:  High Precision Shunt Mode Voltage Reference (5.0 V)

Product Details

Designed for space-critical applications, the ADR525/ADR530/ ADR550 are high precision shunt voltage references, housed in ultrasmall SC70 and SOT-23-3 packages. These references feature low temperature drift of 40 ppm/°C, an initial accuracy of better than ±0.2%, and ultralow output noise of 18 μV p-p.

Available in output voltages of 2.5 V, 3.0 V, and 5.0 V, the advanced design of the ADR525/ADR530/ADR550 eliminates the need for compensation by an external capacitor, yet the references are stable with any capacitive load. The minimum operating current increases from a mere 50 μA to a maximum of 15 mA. This low operating current and ease of use make these references ideally suited for handheld, battery-powered applications.

A trim terminal is available on the ADR525/ADR530/ADR550 to allow adjustment of the output voltage over a ±0.5% range, without affecting the temperature coefficient of the device. This feature provides users with the flexibility to trim out small system errors.

For better initial accuracy and wider temperature range, see the ADR5040/ADR5041/ADR5043ADR5044/ADR5045 family at


  • Portable, battery-powered equipment
  • Automotive
  • Power supplies
  • Data acquisition systems
  • Instrumentation and process control
  • Energy measurement

    • Ultracompact SC70 and SOT-23-3 packages
    • Temperature coefficient: 40 ppm/°C (maximum)
    • 2× the temperature coefficient improvement over the LM4040
    • Pin compatible with LM4040/LM4050
    • Initial accuracy: ±0.2%
    • Low output voltage noise: 14 μV p-p @
      2.5 V output
    • No external capacitor required
    • Operating current range: 50 μA to 15 mA
    • Industrial temperature range: −40°C to +85°C

    Pin Configuration Diagram for ADR550


    Title Content Type File Type
    ADR525/ADR530/ADR550: High Precision Shunt Mode Voltage References Data Sheet (Rev F, 08/2010) (pdf, 266 kB) Data Sheets PDF
    AN-713: The Effect of Long-Term Drift on Voltage References  (pdf, 237 kB) Application Notes PDF
    Precision Switchable Vout Regulator for OTP Applications  (pdf, 267 kB)
    Output Voltage Switchable between 2.5V 2% and 7.0V 1%; Output Current: 0 to 50 mA; Input voltage: 3.2 V to 5.25V; Ripple 2% ppk of Output Voltage
    Power Reference Designs PDF
    RAQs index Rarely Asked Questions HTML
    What do I need to know about selecting and using Voltage References? FAQs/RAQs HTML
    Glossary of EE Terms Glossary HTML

    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

    ADR550 Model Options
    Model Package Pins Temp.
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    ADR550ARTZ-REEL7 Status: Production 3 ld SOT-23 3 Ind Reel, 3000 - $0.49 Y  Material Info PCN Purchase
    ADR550BRTZ-REEL7 Status: Production 3 ld SOT-23 3 Ind Reel, 3000 - $1.21 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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