LM4040CEM3-2.5/E7001881

Description：IC VREF SHUNT 2.5V SOT23-3
Series：-
Mfr：Texas Instruments
Package：Bulk

SKU:573421cd627f Category: Voltage Reference Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT 2.5V SOT23-3
Series：-
Mfr：Texas Instruments
Package：Bulk
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：Automotive
Qualification：AEC-Q100

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LM4040CEM3-2.5/E7001881

Overview

The LM4040CEM3-2.5/E7001881 is a prototype precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5V with an initial tolerance of ±0.5%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 100ppm/°C. Designed for surface-mount applications, it utilizes an SOT-23 package and supports a maximum shunt current of 15mA.

Feature Summary

Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
Provides tight output tolerances and low temperature coefficient for high precision
Features advanced design architecture for reliable micropower shunt operation

Applications

Precision measurement systems requiring stable reference voltages
Portable instrumentation powered by battery sources
Data acquisition circuits demanding accurate voltage references

Procurement Notes

Verify that the specific suffix /E7001881 denotes prototype status rather than standard production volume. Confirm compatibility with the SOT-23 footprint and ensure the 100ppm/°C temperature coefficient meets thermal requirements. Cross-reference the 2.5V fixed output against system input constraints to validate proper biasing conditions.

Selection Notes

Select this component when a compact surface-mount solution is required for precise voltage referencing. The absence of external stabilization components simplifies circuit layout. Consider the 15mA current limit and operating temperature range to ensure suitability for the intended environmental and power conditions.

Part Context

This part belongs to the LM4040-N/-Q1 family of precision micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages including 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V. The LM4040CEM3-2.5 variant specifically targets applications needing 2.5V with improved thermal stability compared to older generations.

Replacement Considerations

The datasheet identifies LM4040CEM3-5.0/NOPB as an alternate option within the same product line. Verify if the required reference voltage matches the application needs before substituting.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.