Product details


VO (V) 5 Initial accuracy (Max) (%) 0.1 Temp coeff (Max) (ppm/ degree C) 8 Rating Automotive Vin (Min) (V) 5.2 Vin (Max) (V) 18 Iq (Typ) (uA) 800 TI functional safety category Functional Safety-Capable Features TRIM/NR pin Iout/Iz (Max) (mA) 10 Operating temperature range (C) -40 to 125 open-in-new Find other Series voltage references

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other Series voltage references


  • Qualified for Automotive Applications
  • Low Temperature Drift
    • Standard Grade: 8 ppm/°C (max)
  • High Accuracy
    • Standard Grade: 0.1% (max)
  • Low Noise: 3 µVPP/V
  • Excellent Long-Term Stability:
    • 5 ppm/1000 hr (typ) after 1000 hours
  • High Output Current: ±10 mA
  • Temperature Range: –40°C to 125°C
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The REF50xxA-Q1 family of devices is low-noise, low-drift, very-high precision-voltage reference. These reference devices are capable of both sinking and sourcing, and are very robust with regard to line and load changes.

Excellent temperature drift (3 ppm/°C) and high accuracy (0.05%) are achieved using proprietary design techniques. These features combined with very low noise make the REF50xxA-Q1 family of devices ideal for use in high-precision data acquisition systems.

Each reference voltage is available in a standard-grade versions. The devices are offered in SO-8 packages and are specified from –40°C to 125°C.

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Similar but not functionally equivalent to the compared device:
REF34-Q1 ACTIVE Automotive, low-drift, low-power, small-footprint series voltage reference REF34-Q1 offers better quiescent current and accuracy at lower 6 ppm/°C temperature drift

Technical documentation

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Type Title Date
* Datasheet REF50xxA-Q1 Low-Noise, Very Low Drift, Precision Voltage Reference datasheet (Rev. H) Feb. 24, 2015
Functional safety information REF50xxA-Q1 Functional Safety FIT Rate and Failure Mode Distribution Dec. 19, 2019
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019

Design & development

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Hardware development

document-generic User guide

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 (...)

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

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options

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