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Product details

Parameters

VO (V) 4.096 Initial accuracy (Max) (%) 0.2 Temp coeff (Max) (ppm/ degree C) 15, 20 Rating Catalog Vin (Min) (V) 4.146 Vin (Max) (V) 5.5 Iq (Typ) (uA) 100 Iout/Iz (Max) (mA) 10 Operating temperature range (C) -40 to 125 open-in-new Find other Series voltage references

Package | Pins | Size

SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 open-in-new Find other Series voltage references

Features

  • Size Package: SOT23-3
  • Low Dropout: 5 mV
  • High Output Current: ±10 mA
  • High Accuracy: 0.2% Maximum
  • Low IQ: 115 µA Maximum
  • Excellent Specified Drift Performance:
    • 15 ppm/°C (Maximum) from 0°C to +70°C
    • 20 ppm/°C (Maximum) from –40°C to +125°C
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Description

The REF31xx is a family of precision, low power, low dropout, series voltage references available in the tiny 3-pin SOT-23 package.

The REF31xx’s small size and low power consumption (100 µA typical) make it ideal for portable and battery-powered applications. The REF31xx does not require a load capacitor, but is stable with any capacitive load and can sink or source up to 10 mA of output current.

Unloaded, the REF31xx can operate on supplies down to 5 mV above the output voltage. All models are specified for the wide temperature range of –40°C to +125°C.

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Exact equivalent in functionality and parametrics to the compared device:
REF31-Q1 ACTIVE Automotive, 20-ppm/°C (max), 100-µA, 3-pin SOT-23 series voltage reference AEC-Q100 qualified version of this device

Technical documentation

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Type Title Date
* Datasheet REF31xx 15ppm/°C Maximum, 100-µA, SOT-23 Series Voltage Reference datasheet (Rev. D) Mar. 31, 2016
Application notes Voltage Reference Design Tips For ADC Pairing Nov. 05, 2019
Application notes Voltage Reference Solutions in Motor Control Drives Jul. 29, 2019
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
White papers Voltage reference selection basics white paper (Rev. A) Oct. 23, 2018
Application notes High-Voltage Signal Conditioning for Differential ADCs Jun. 14, 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost

CAD/CAE symbols

Package Pins Download
SOT-23 (DBZ) 3 View options

Ordering & quality

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