LM4040C25QDBZR

$0.61

Description：IC VREF SHUNT 0.5% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:25fef2a2dd2b Category: Voltage Reference Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT 0.5% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Fixed
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：-
Current - Output：15 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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LM4040C25QDBZR

Overview

The LM4040C25QDBZR is a precision micropower shunt voltage reference from Texas Instruments, offering a fixed output of 2.5 V with an initial accuracy of 0.5%. It operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 150 PPM/°C. The device supports a maximum shunt current of 15 mA and a minimum operating current of 75 uA. Packaged in a compact SOT-23-3 surface-mount case, it is designed for applications requiring high stability and low power consumption.

Feature Summary

Provides stable 2.5 V reference voltage with 0.5% initial accuracy
Operates across extended industrial temperature range (-40°C to +125°C)
Designed for low-power applications with micropower shunt architecture

Applications

Portable battery-powered instrumentation
Data acquisition systems
Temperature measurement circuits

Procurement Notes

Verify the specific suffix QDBZR confirms automotive qualification (AEC-Q100) and reel packaging format. Confirm the 2.5V output variant matches design requirements. Check RoHS compliance status on the official datasheet. Ensure ordering quantities align with standard reel sizes if applicable.

Selection Notes

Select this component when automotive-grade reliability is required alongside tight 0.5% accuracy at 2.5 V. The SOT-23-3 package suits space-constrained designs. Compare against non-automotive variants if cost sensitivity outweighs qualification needs. Ensure input voltage exceeds the reference output by sufficient headroom for proper regulation.

Part Context

Part of the LM4040 family of precision shunt references. The 'C' indicates commercial/industrial temperature grade, while 'Q' denotes automotive qualification. This specific model integrates high stability in a small footprint, serving as a key reference element in mixed-signal circuits where noise immunity and long-term drift are critical performance factors.