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Product details

Parameters

VO (V) 2.5 Initial accuracy (Max) (%) 0.05 Temp coeff (Max) (ppm/ degree C) 6 Rating Catalog Vin (Min) (V) 2.55 Vin (Max) (V) 12 Iq (Typ) (uA) 72 Features Clean-Start Iout/Iz (Max) (mA) 10 Operating temperature range (C) -40 to 125 Shutdown current (Typ) (uA) 1 open-in-new Find other Series voltage references

Package | Pins | Size

SOT-23 (DBV) 5 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): 5 µVPP/V
  • Excellent Long-Term Stability 30 ppm/1000 hrs
  • Small Footprint 5-Pin SOT-23 Package

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Description

The REF2125 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 5 µVp-p /V, which enables its ability to maintain high signal integrity with high-resolution data converters and noise critical systems.

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) make them ideal for portable and battery-powered applications.

REF2125 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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Technical documentation

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Type Title Date
* Datasheet REF2125 Low-Drift, Low-Power, Small-Footprint, Series Voltage Reference With Clean Start datasheet Sep. 08, 2017
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
White papers Voltage reference selection basics white paper (Rev. A) Oct. 23, 2018
Application notes Level Shifting Signals With Differential Amplifiers (Rev. A) Apr. 02, 2018
Technical articles How to ensure precision in automated processes Nov. 07, 2017
White papers Tips and tricks for designing with voltage references May 30, 2017
Application notes Getting the most out of your instrumentation amplifier design Oct. 10, 2005

Design & development

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

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

Design tools & simulation

SIMULATION MODELS Download
SBAM335.TSC (76 KB) - TINA-TI Reference Design

Reference designs

REFERENCE DESIGNS Download
RTD replacement for cold junction compensation reference design in a temperature sensor
TIDA-010019 — Temperature-sensing applications that use a thermocouple (TC) require an accurate local temperature sensor to achieve high accuracy. Solutions for design challenges such as cold-junction compensation (CJC) or including an ultra-low power TC analog front-end are highlighted and addressed in this (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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