LM4050CIM3X-8.2

Voltage Reference Overview

The LM4050CIM3X-8.2 is a precision micropower shunt voltage reference manufactured by 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 exhibits a maximum temperature coefficient of 50 ppm/°C. The device supports a wide operating current range from 74 μA to 15 mA, ensuring stability without external capacitors while tolerating capacitive loads.

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 for high accuracy
• Incorporates bandgap reference temperature drift curvature correction for stable performance

Voltage Reference Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Product testing

Voltage Reference Procurement Notes

Verify that the ordering suffix 'X' indicates tape-and-reel packaging and confirm the 'CIM3' designation corresponds to the C-grade tolerance and SOT-23 package. Ensure the component meets the required extended temperature specifications (-40°C to +125°C) and validate the specific 8.192 V output requirement against system design constraints before procurement.

Voltage Reference Selection Notes

Select this component when space-critical applications require a precise shunt reference in a miniature SOT-23 package. It is suitable for designs needing stability under varying capacitive loads without additional components. Consider the extended temperature range and 0.5% accuracy grade if higher precision or industrial ranges are not strictly necessary.

Voltage Reference Part Context

This part belongs to the LM4050-N family of precision micropower shunt voltage references. The series offers various fixed voltages including 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V. The LM4050-N-Q1 variant provides automotive qualification, while standard versions cover industrial and extended temperature ranges in compact surface-mount packages.

Voltage Reference Replacement Considerations

LM4050AIM3X-8.2/NOPB: Offers tighter ±0.1% accuracy but same package and voltage. LM4050BIM3X-8.2/NOPB: Provides ±0.2% accuracy. LM4050CEM3X-8.2/NOPB: Identical C-grade specification in different reel packaging.