LM285MX-1.2/NOPB

Overview

The LM285MX-1.2/NOPB is a micropower shunt voltage reference from Texas Instruments, housed in an SOIC-8 surface-mount package. It provides a fixed output voltage of 1.235 V with an initial accuracy of 1%. 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 shunt current range from 10 µA to 20 mA, making it suitable for low-power applications requiring stable voltage regulation.

Feature Summary

• Provides a precise fixed reference voltage of 1.235 V
• Operates with minimal current consumption starting at 10 µA
• Maintains stability across industrial temperature ranges

Applications

• Portable battery-powered instrumentation
• Data acquisition systems
• Microprocessor supply monitoring

Procurement Notes

Verify the specific suffix MX indicates tape-and-reel packaging versus tube variants. Confirm RoHS compliance status through official manufacturer documentation. Ensure the operating environment stays within the specified thermal limits for optimal performance.

Selection Notes

Select this component when a low-cost, fixed 1.2V reference is required in a compact surface-mount format. Compare against adjustable variants if programmable output is needed. Consider the 1% accuracy tolerance for precision requirements.

Part Context

This part belongs to the LM285 family of micropower voltage references. It shares architectural similarities with other LM285 variants but offers a fixed output instead of adjustable settings. The NOPB suffix denotes lead-free and RoHS-compliant manufacturing.

Replacement Considerations

LM285BYMX-1.2/NOPB serves as a direct functional substitute within the same series.