LM4040BIX3-2.5

Overview

The LM4040BIX3-2.5 is a precision micropower shunt voltage reference manufactured by Analog Devices Inc. under the Maxim Integrated brand. It provides a fixed output voltage of 2.5 V with an initial accuracy of 0.2%. The device operates within a temperature range of -40°C to +125°C and features a maximum temperature coefficient of 70 ppm/°C. It utilizes an SOT-23-3 surface-mount package and supports a shunt current range from 60 µA to 15 mA.

Feature Summary

• Provides stable, high-precision voltage reference in a compact surface-mount package
• Operates effectively across a wide industrial temperature range
• Designed for space-critical applications requiring low power consumption

Applications

• Portable battery-powered instrumentation
• Data acquisition systems
• Handheld meters

Procurement Notes

Verify the specific suffix 'IX3' against official manufacturer documentation to confirm exact tape-and-reel specifications and RoHS compliance status. Ensure the component matches the required 0.2% accuracy grade and extended temperature range before integration into production designs.

Selection Notes

Select this component when a 2.5 V reference with 0.2% initial accuracy is required in an SOT-23-3 footprint. It is suitable for designs needing operation up to +125°C. Compare against LM4040AIM3 variants if tighter 0.1% accuracy or lower temperature coefficients are necessary for the application.

Part Context

This part belongs to the LM4040 family of two-terminal shunt voltage references. The family offers various accuracy grades (A, B, C, D) and output voltages. The 'B' designation indicates the 0.2% tolerance level, while 'IX3' specifies the SC-70/SOT-323 package variant with reel packaging.

Replacement Considerations

LM4040BIM3-2.5+T: Similar 0.2% accuracy but typically rated for -40°C to +85°C; verify thermal requirements. LM4040AIM3X-2.5/NOPB: Offers higher 0.1% accuracy but may differ in temperature coefficient and package availability.