LM285MX/NOPB

Overview

The LM285MX/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments. It provides an adjustable output voltage ranging from 1.24 V to 5.3 V with an initial accuracy of 2%. 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 a minimum operating current of 10 µA. The component is housed in an SOIC-8 surface-mount package.

Feature Summary

• Adjustable output voltage capability spanning 1.24 V to 5.3 V
• Micropower operation suitable for battery-powered applications
• Precision shunt regulation with 2% initial accuracy

Applications

• Portable instrumentation requiring stable voltage references
• Battery-operated measurement systems
• Data acquisition systems needing precise analog references

Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm pinout compatibility and electrical specifications. Ensure the ordering information matches the required package type and temperature grade. Cross-reference the datasheet revision date to validate parameter consistency before integration into design specifications.

Selection Notes

Select this component when an adjustable precision reference is required in a compact surface-mount form factor. The 2% initial accuracy and 150 ppm/°C temperature coefficient define its precision class. Consider the 10 µA minimum operating current constraint for low-power circuit designs to ensure stable regulation under minimal load conditions.

Part Context

This part belongs to the LM285 series of micropower voltage references, which are widely used in industrial and consumer electronics. The MX suffix indicates the SOIC-8 surface-mount package variant, distinguishing it from through-hole options like the TO-92 or DIP packages found in other series members.

Replacement Considerations

LM285M/NOPB: Identical functional specification with tube packaging instead of tape-and-reel.