REF1112AIDBZR

$1.75

Description：IC VREF SHUNT 0.2% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:b1a0be488193 Category: Voltage Reference Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT 0.2% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Fixed
Voltage - Output (Min/Fixed)：1.25V
Voltage - Output (Max)：-
Current - Output：5 mA
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：-
Qualification：-

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REF1112AIDBZR

Overview

The REF1112AIDBZR is a precision shunt voltage reference featuring a fixed reverse breakdown voltage of 1.25 V in an SOT-23-3 package. It operates within a current range of 1.2 μA to 5 mA and maintains low output noise of 25 μVpp (typical) from 0.1 Hz to 10 Hz. The device exhibits a maximum temperature coefficient of 30 ppm/°C from 0°C to +70°C and 50 ppm/°C from -40°C to +85°C. Initial output voltage tolerance is ±0.2%, with operation supported across a temperature range of -40°C to +125°C.

Feature Summary

Two-terminal shunt reference design optimized for power-sensitive applications
Ultra-low operating current of 1 μA enables extended battery life
Compact SOT-23-3 package reduces board space requirements
Low output noise supports high-precision signal conditioning

Applications

Battery-powered instruments
Medical equipment
Field transmitters
Calibrators

Procurement Notes

Verify the specific suffix 'AIDBZR' against the manufacturer's latest ordering information to confirm package type, tape-and-reel specifications, and regional compliance status. Ensure the procurement channel provides valid traceability documentation. Confirm that the component meets the required environmental standards for the intended deployment environment before finalizing acquisition.

Selection Notes

Select this component when designing circuits requiring a stable 1.25 V reference with minimal power consumption. The SOT-23-3 form factor is suitable for space-constrained layouts. Consider the 1.2 μA minimum operating current when sizing biasing resistors to ensure regulation stability. Evaluate the noise performance relative to the application's sensitivity requirements.

Part Context

This part belongs to the Texas Instruments REF11xx series of micropower voltage references. It serves as a lower-power alternative to larger package references like the REF1004. The device complements other low-power TI components such as the OPA349 operational amplifiers and TLV240x comparators in portable system designs.