LM4050CIM3-8.2/NOPB

Voltage Reference Overview

The LM4050CIM3-8.2/NOPB is a precision micropower shunt voltage reference from Texas Instruments, featuring an 8.192 V fixed reverse breakdown voltage with ±0.5% initial accuracy at 25°C. It operates within an extended temperature range of −40°C to 125°C and utilizes a compact SOT-23 package measuring 3 mm × 1.3 mm. The device requires no external stabilizing capacitor for stability with any capacitive load. Key electrical characteristics include a maximum temperature coefficient of 50 ppm/°C, a typical wideband noise of 150 μVrms (10 Hz to 10 kHz), and a minimum operating current of 95 μA in the industrial range.

Voltage Reference Feature Summary

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

Voltage Reference Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Precision audio components

Voltage Reference Procurement Notes

Verify the specific suffix 'CIM3' corresponds to the C-grade tolerance and industrial/extended temperature rating as defined in the datasheet. Confirm that the 'NOPB' designation indicates lead-free and RoHS compliance. Ensure the ordering information matches the exact voltage option of 8.192 V to avoid functional mismatches in shunt regulator designs.

Voltage Reference Selection Notes

Select this component when space constraints require a sub-miniature SOT-23 package. Choose the C-grade variant if ±0.5% initial accuracy meets system requirements. Verify that the supply current remains within the 60 μA to 15 mA operating range to maintain specified noise and impedance characteristics across the full temperature spectrum.

Voltage Reference Part Context

This part belongs to the LM4050-N family of precision micropower shunt voltage references. The family offers fixed reverse breakdown voltages including 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V. Variants are available in industrial (−40°C to 85°C) and extended (−40°C to 125°C) temperature ranges, all housed in the same small surface-mount footprint.

Voltage Reference Replacement Considerations

LM4050CEM3-8.2/NOPB

Voltage Reference FAQ

Does the LM4050CIM3-8.2/NOPB require an output capacitor?

No, the design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the maximum temperature coefficient for this device?

The maximum average reverse breakdown voltage temperature coefficient is 50 ppm/°C over the operating temperature range.