LM285M-2.5/NOPB

Overview

The LM285M-2.5/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, housed in an SOIC-8 surface-mount package. It provides a fixed output voltage of 2.5 V with an initial accuracy of 1.5%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 150 ppm/°C. It supports a maximum shunt current of 20 mA and requires a minimum operating current of 10 µA for regulation.

Feature Summary

• Provides stable 2.5 V reference voltage via shunt regulation architecture
• Operates effectively at micropower levels with low minimum current requirements
• Maintains specified performance across industrial temperature ranges

Applications

• Portable battery-powered instrumentation requiring low quiescent current
• Data acquisition systems needing precise analog voltage references
• Microprocessor power supply monitoring circuits

Procurement Notes

Verify the specific suffix matches the required package and temperature grade. Confirm RoHS compliance status through official manufacturer documentation. Ensure ordering codes align with current production revisions to avoid obsolete variants.

Selection Notes

Select this component when a fixed 2.5 V reference is required in an SOIC-8 footprint. Consider the 1.5% initial accuracy and 150 ppm/°C temperature coefficient against application tolerance needs. Evaluate thermal management requirements given the small outline package constraints.

Part Context

This part belongs to the LM285 series of micropower voltage references. It serves as a precision shunt regulator alternative to Zener diodes, offering superior stability and lower noise characteristics suitable for sensitive analog signal processing applications.

Replacement Considerations

LM285BYMX-2.5/NOPB offers identical electrical specifications in a different packaging format.