LM4040EIM7-2.5/NOPB

Overview

The LM4040EIM7-2.5/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.5%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 150ppm/°C. It supports a maximum cathode current of 15mA and requires a minimum operating current of 65µA. The component is housed in a SC-74 package (SOT-323) with three terminals.

Feature Summary

• Provides stable fixed voltage reference for analog circuits
• Micropower operation suitable for battery-powered applications
• Compact surface-mount packaging for space-constrained designs

Applications

• Portable instrumentation systems
• Battery-powered measurement devices
• Data acquisition systems requiring precise voltage references

Procurement Notes

Verify the specific suffix 'EIM7' against official Texas Instruments documentation to confirm package type and availability status. Ensure compatibility with SC-74 footprint requirements. Check for any recent product lifecycle changes or obsolescence notices directly from the manufacturer before procurement.

Selection Notes

Select this component when a 2.5V reference with ±0.5% initial accuracy is required. Consider the 150ppm/°C temperature coefficient for thermal stability needs. Verify that the SC-74 package aligns with PCB layout constraints and that the 15mA max current meets load requirements.

Part Context

This part belongs to the LM4040-N series of precision shunt voltage references. The series offers various fixed voltage options and accuracy grades. The LM4040EIM7 variant specifically utilizes the SC-74 package, distinguishing it from SOT-23 or TO-92 versions within the same family.

Replacement Considerations

LM4040EIM3-2.5/NOPB: Different SOT-23 package; verify pinout and footprint compatibility.