LM385BMX-2.5/NOPB

Overview

The LM385BMX-2.5/NOPB is a micropower shunt voltage reference IC manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It provides a fixed output voltage of 2.5V with an initial accuracy tolerance of ±1.5%. The device operates within a temperature range of 0°C to 70°C and features a temperature coefficient of 150 ppm/°C. It supports a maximum cathode current of 20 mA and a minimum operating current of 20 µA.

Feature Summary

• Provides stable 2.5V reference voltage via shunt topology
• Micropower operation suitable for battery-powered applications
• Surface-mount construction for automated assembly

Applications

• Portable instrumentation requiring low power consumption
• Battery-operated measurement systems
• Data acquisition circuits needing precise voltage references

Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status as per the manufacturer's datasheet. Confirm the 'B' grade designation indicates the required ±1.5% initial accuracy for your application. Ensure the 8-SOIC package dimensions match your PCB footprint design constraints before finalizing procurement.

Selection Notes

Select this component when a fixed 2.5V reference is required in a compact surface-mount form factor. The ±1.5% accuracy offers a balance between precision and cost for general-purpose applications. Consider the 0°C to 70°C operating range to ensure suitability for standard commercial environments.

Part Context

This part belongs to the LM385 family of micropower shunt voltage references from Texas Instruments. It serves as a surface-mount alternative to through-hole variants like the LM385BYZ series. The device is designed to replace older generations while maintaining compatibility with standard reference circuit topologies.

Replacement Considerations

LM385MX-2.5/NOPB is a documented substitute offering identical electrical specifications in the same package.