LM4050CIM3X-4.1

Voltage Reference Overview

The LM4050CIM3X-4.1 is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed reverse breakdown voltage of 4.096 V at an operating current of 100 μA. It provides an initial accuracy of ±0.5% and maintains a maximum temperature coefficient of 50 ppm/°C across the industrial temperature range of -40°C to +85°C. The device operates within a wide current range from a minimum of 73 μA up to 15 mA, ensuring stability without requiring external output capacitors.

Voltage Reference Feature Summary

• Eliminates the need for external stabilizing capacitors while maintaining stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high accuracy
• Incorporates bandgap reference temperature drift curvature correction for stable performance over varying temperatures

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify that the specific part number matches the required C-grade tolerance and extended temperature capabilities. Confirm package integrity upon receipt as the component utilizes a small SOT-23 surface-mount footprint. Ensure handling procedures account for electrostatic discharge sensitivity ratings provided in the datasheet specifications.

Voltage Reference Selection Notes

Select this component when space constraints require a sub-miniature SOT-23 package. Choose this model if the application demands a 4.096 V reference with ±0.5% initial accuracy. Consider this option for designs needing capacitor-free operation and low power consumption suitable for battery-powered environments.

Voltage Reference Part Context

This device belongs to the LM4050-N family of precision micropower shunt voltage references. It shares design characteristics with other grades such as A and B, differing primarily in initial accuracy and temperature coefficient specifications. The series offers multiple fixed voltage options including 2.048 V, 2.5 V, 5 V, 8.192 V, and 10 V.

Voltage Reference Replacement Considerations

LM4050BIM3X-4.1/NOPB

Voltage Reference FAQ

Does the LM4050CIM3X-4.1 require an output capacitor for stability?

No, the LM4050-N design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the minimum operating current for the 4.1-V option?

The minimum operating current is 73 μA within the industrial temperature range (-40°C to +85°C).