LM4041EIM3X-1.2/NOPB

Voltage Reference Overview

The LM4041EIM3X-1.2/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments, housed in a surface-mount SOT-23 package. It provides a fixed output voltage of 1.225 V with an initial accuracy of ±0.5%. The device operates within a temperature range of -40°C to +85°C and supports a maximum cathode current of 12 mA. It features low dynamic impedance and low noise (20 µVRMS typical) without requiring external stabilizing capacitors.

Voltage Reference Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort for high accuracy
• Bandgap reference temperature drift curvature correction ensures stable performance over wide operating ranges

Voltage Reference Applications

• Data acquisition systems
• Power supply monitoring circuits
• Instrumentation and test equipment

Voltage Reference Procurement Notes

Verify the specific suffix 'E' corresponds to the C-grade specification (±0.5% accuracy, 100 ppm/°C) as defined in the official LM4041 datasheet. Confirm the 'M3' designation indicates the SOT-23 package variant. Ensure the 'NOPB' suffix confirms lead-free and RoHS compliance status before final procurement integration.

Voltage Reference Selection Notes

Select this component when space-constrained designs require a sub-miniature SOT-23 footprint. It is suitable for applications needing fixed 1.225V references with moderate precision requirements. Consider the -40°C to +85°C industrial temperature rating against application thermal profiles. Evaluate the 45 µA minimum operating current against system power budgets.

Voltage Reference Part Context

This part belongs to the LM4041-N family of precision micropower shunt voltage references from Texas Instruments. The family includes adjustable versions and various accuracy grades (A through D). The LM4041 series is designed for portable applications due to its low power consumption and small form factor options including SC-70 and SOT-23 packages.

Voltage Reference Replacement Considerations

LM4041CIM3X-1.2/NOPB: Offers identical electrical characteristics and package but may differ in specific grade availability or manufacturing lot specifications.