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REF3440

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4.1-V low-drift low-power small-footprint series voltage reference

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4.1-V low-drift low-power small-footprint series voltage reference

REF3440

ACTIVE
Data sheet Order now

Product details

Parameters

VO (V) 4.096 Initial accuracy (Max) (%) 0.05 Temp coeff (Max) (ppm/ degree C) 6 Rating Catalog Vin (Min) (V) 4.15 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 Solutions in Motor Control Drives Jul. 29, 2019
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Application notes Choosing the Right Voltage Reference for Your Automotive Application Jul. 17, 2018

Design & development

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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
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Design tools & simulation

SIMULATION MODELS Download
SBAM376.TSC (79 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBAM377.ZIP (21 KB) - TINA-TI Spice Model

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SOT-23 (DBV) 6 View options

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