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Product details

Parameters

VO (V) 3 Initial accuracy (Max) (%) 0.05 Temp coeff (Max) (ppm/ degree C) 6 Rating Catalog Vin (Min) (V) 3.05 Vin (Max) (V) 12 Iq (Typ) (uA) 72 Features Enable pin, 4-wire output Iout/Iz (Max) (mA) 10 Operating temperature range (C) -40 to 125 Shutdown current (Typ) (uA) 2.5 open-in-new Find other Series voltage references

Package | Pins | Size

SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 open-in-new Find other Series voltage references

Features

  • Initial Accuracy: ±0.05% (Maximum)
  • Temperature Coefficient : 6 ppm/°C (Maximum)
  • Operating Temperature Range: −40°C to +125°C
  • Output Current: ±10 mA
  • Low Quiescent Current: 95 µA (Maximum)
  • Wide Input Voltage: 12 V
  • Output 1/f Noise (0.1 Hz to 10 Hz): 3.8 µVPP/V
  • Excellent Long-Term Stability 25 ppm/1000 hrs
  • Small Footprint 6-Pin SOT-23 Package

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Description

The REF34xx device is a low temperature drift
(6 ppm/°C), low-power, high-precision CMOS voltage reference, featuring ±0.05% initial accuracy, low operating current with power consumption less than 95 µA. This device also offers very low output noise of 3.8 µVp-p /V, which enables its ability to maintain high signal integrity with high-resolution data converters in noise critical systems. With a small SOT-23 package, REF34xx offers enhanced specifications and pin-to-pin replacement for MAX607x and ADR34xx. The REF34xx family is compatible to most of the ADC and DAC such as ADS1287, ADUCM360, ADS1112.

Stability and system reliability are further improved by the low output-voltage hysteresis of the device and low long-term output voltage drift. Furthermore, the small size and low operating current of the devices (95 µA) can benefit portable and battery-powered applications.

REF34xx is specified for the wide temperature range of −40°C to +125°C. Contact the TI sales representative for additional voltage options.

 

 

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Exact equivalent in functionality and parametrics to the compared device:
REF34-Q1 ACTIVE Automotive, low-drift, low-power small-footprint series voltage reference AEC-Q100 qualified version of this device

Technical documentation

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Type Title Date
* Datasheet REF34xx Low-Drift, Low-Power, Small-Footprint Series Voltage Reference datasheet (Rev. B) Mar. 28, 2018
Application notes Voltage Reference Design Tips For ADC Pairing Nov. 05, 2019
More literature Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Selection guides Precision Data Converter Companion Devices Selection Guide (Rev. B) Oct. 04, 2018
Application notes Choosing the Right Voltage Reference for Your Automotive Application Jul. 17, 2018
Application notes Level Shifting Signals With Differential Amplifiers (Rev. A) Apr. 02, 2018
More literature Tips and tricks for designing with voltage references May 30, 2017
Application notes How the voltage reference affects performance, Part 1 May 01, 2009

Design & development

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

Design tools & simulation

SIMULATION MODELS Download
SBAM352.ZIP (22 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBAM353.TSC (77 KB) - TINA-TI Reference Design

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 6 View options

Ordering & quality

Support & training

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Videos

Voltage Reference Use Cases

Beyond the scope of signal chain conditioning, see other voltage reference use cases in this informative video.

Posted: 07-Jan-2018
Duration: 05:53

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