Product details


VO (V) 2.5 Initial accuracy (Max) (%) 0.025 Temp coeff (Max) (ppm/ degree C) 2 Rating Catalog Vin (Min) (V) 3 Vin (Max) (V) 18 Iout/Iz (Max) (mA) 10 Operating temperature range (C) -40 to 125 Shutdown current (Typ) (uA) 5 open-in-new Find other Series voltage references


  • Low noise :
    • 1/f Noise (0.1 Hz to 10 Hz): 0.22 ppmp-p
    • 10 Hz to 1 kHz: 0.5 ppmrms
  • Low temperature drift coefficient :
    • 2 ppm/°C (maximum for -40°C to 125°C)
  • High accuracy: ±0.025% (maximum)
  • Available in humidity resistance ceramic package (LCCC)
  • Low dropout: 250 mV
  • Wide input voltage: 3 V to 18 V
  • Output current: ±10 mA
  • Industry standard voltage options: 2.5 V, 3.0 V, 3.3 V, 4.096 V, 5.0 V
  • Operating temperature range: −40°C to +125°C

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The REF70 device family offers a unique combination of very low noise (0.22 ppmp-p), low thermal drift (2 ppm/°C), and high accuracy (±0.025%). These characteristics of the REF70, when paired with high-resolution data converters, enable various end equipment to achieve their performance targets.

High initial accuracy with very low temperature and long-term drift help reduce the need for frequent in system calibration.

LCCC (FKH) package helps improve the long term drift and thermal hysteresis performance further for applications requiring a very stable reference.

REF70 is specified for the wide temperature range of −40°C to +125°C. The wide temperature range enables the device to operate across various applications. Contact the TI sales representative for additional voltage and package options.



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Request samples

Preproduction samples are available (PREF7025QFKHR). Request now

Technical documentation

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Type Title Date
* Datasheet REF70 Ultra-High-Precision Voltage Reference with Low Noise and Low Drift datasheet Oct. 14, 2020
User guide REF70EVM User's Guide Oct. 02, 2020

Design & development

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

Hardware development


The REF70 evaluation module (EVM) is a platform for evaluating the REF70 product, which is an ultra-low noise, high-precision voltage reference. REF70 offers an ultra-low 1/f noise of 0.22 ppmp-p during operation while maintaining a very precise voltage output over temperature of 1 ppm/C. REF70EVM (...)

  • Ultra-low noise
  • Ultra-low temperature drift
  • High accuracy
  • Available in a ceramic package
  • Wide input voltage (VIN)

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

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(FKH) 8 View options

Ordering & quality

Information included:
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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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