LM385D-2-5

Overview

The LM385D-2-5 is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a nominal output voltage of 2.5V with an initial accuracy of ±3%. The device operates within a temperature range of 0°C to +70°C and features a maximum load current capability of 20mA. It utilizes an 8-pin SOIC surface-mount package, measuring 4.9mm in length, 3.91mm in width, and 1.58mm in height. The component exhibits a typical temperature coefficient of 150ppm/°C and offers a noise level of 120µVrms from 10Hz to 10kHz.

Feature Summary

• Provides stable 2.5V reference voltage for precision applications
• Designed for low-power consumption with micropower operation
• Suitable for surface-mount assembly via standard SOIC packaging

Applications

• Portable instrumentation circuits
• Battery-powered measurement systems
• Data acquisition reference sources

Procurement Notes

Verify the specific suffix 'D' indicates the SOIC package variant. Confirm RoHS compliance status as older revisions may differ. Check for active manufacturing status or obsolescence notices before procurement. Ensure thermal management aligns with commercial grade limits.

Selection Notes

Select this component when a fixed 2.5V reference is required in a compact surface-mount form factor. Consider the ±3% tolerance for budget applications. Evaluate the 20mA current limit against circuit requirements. Compare against adjustable variants if flexibility is needed.

Part Context

This part belongs to the LM385 family of micropower shunt references. It serves as a cost-effective solution for general-purpose voltage referencing. The series includes various voltage options and package types to support diverse electronic design needs across consumer and industrial sectors.

Replacement Considerations

LM385MX-2.5/NOPB is a documented alternative offering similar specifications in an MX package.