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Product details

Parameters

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

Features

  • 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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Description

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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Preproduction samples are available (PREF7025QFKHR). Request now

Technical documentation

= Top documentation for this product selected by TI
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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

EVALUATION BOARD Download
59
Description

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 (...)

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

Design tools & simulation

SIMULATION TOOL Download
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 (...)
Features
  • 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
(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

Support & training

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