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ADR4550:  Ultra-Low-Noise, High-Accuracy 5.0V Voltage Reference

Product Details

Product Status:Recommended for New Designs

The ADR45xx series of devices are high precision, low power, low noise voltage references, featuring ± 0.02% maximum initial error, excellent temperature stability and low output noise.

This family of voltage references employs a new core topology for high accuracy, while offering industry-leading temperature stability and noise performance. The devices’ low thermally induced output voltage hysteresis and low long-term output voltage drift also improve system accuracy over time and temperature variations.

A maximum operating current of 950 μA and a low dropout voltage (300 mV max) allow the device to be used in portable equipment.

ADR45xx series references are available in a wide range of output voltages, in an SOIC package, all of which are specified over the extended industrial temperature range of -40°C to +125 °C.


  • Precision data acquisition systems
  • High-resolution data converters
  • High-precision measurement devices
  • Industrial instrumentation
  • Medical devices
  • Automotive battery monitoring


  • Maximum temperature coefficient (TC):
    2 ppm / °C
  • Output noise (0.1 – 10 Hz):
    < 2.5 μVp-p @ 5.0 VOUTtyp
  • Initial output voltage error:
    ± 0.02% maximum
  • Input voltage range:
    3 to 15 V
  • Operating temperature:
    -40°C – +125 °C
  • Output current:
    +10 mA source / -10 mA sink
  • Low quiescent current:
    950 μA (max)
  • Low dropout voltage:
    300 mV@2mA
  • SOIC-8 package

Pin Configuration for ADR4550

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Price, packaging, availability

ADR4550 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
ADR4550ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.65 $2.45 Y  Material Info Notify Me Purchase Sample
ADR4550ARZ-R7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $2.45 Y  Material Info Notify Me Purchase
ADR4550BRZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $3.95 $3.45 Y  Material Info Notify Me Purchase
ADR4550BRZ-R7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $3.45 Y  Material Info Notify Me 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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