LM4041CIM7-1.2/NOPB

Overview

The LM4041CIM7-1.2/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed output of 1.225 V. It operates within an extended temperature range of -40°C to +125°C and utilizes the SC-70-5 surface-mount package. The device offers an initial accuracy of ±0.5% and a maximum temperature coefficient of 100 ppm/°C. It supports a wide operating current range from a minimum of 45 µA to a maximum of 12 mA. The component is designed for stability with any capacitive load without requiring external stabilizing capacitors.

Feature Summary

• Provides stable operation across all capacitive loads without the need for external stabilizing capacitors
• Utilizes advanced bandgap reference design with curvature correction for low dynamic impedance
• Ensures high precision through fuse and Zener-zap reverse breakdown voltage trim during wafer sort

Applications

• Data acquisition systems
• Portable battery-powered equipment
• Process control instrumentation
• Precision audio applications

Procurement Notes

Verify the specific suffix 'CIM7' corresponds to the SC-70-5 package and C-grade (±0.5%) accuracy specifications. Confirm the '-NOPB' designation indicates compliance with RoHS standards and absence of lead. Ensure the ordering part number matches the required temperature range of -40°C to +125°C for industrial or automotive environments.

Selection Notes

Select this component when space-constrained designs require a sub-miniature SC-70-5 package. Choose the LM4041CIM7-1.2/NOPB for applications needing a fixed 1.225 V reference with ±0.5% initial accuracy. It is suitable for circuits demanding low quiescent current operation down to 45 µA while maintaining stability with varying load capacitance.

Part Context

This device belongs to the LM4041-N family of precision micropower shunt voltage references. The family includes various grades (A, B, C, D) offering different accuracy levels and temperature coefficients. Variants are available in SOT-23, SC-70, and TO-92 packages, providing flexibility for both fixed and adjustable voltage reference applications in compact electronic systems.

Replacement Considerations

LM4041BIM7-1.2/NOPB: Offers higher accuracy (±0.2%) and lower temperature drift (100 ppm/°C).

FAQ

Does the LM4041CIM7-1.2/NOPB require an external capacitor for stability?

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

What is the minimum operating current for this voltage reference?

The typical minimum operating current is 45 µA, allowing for efficient power management in portable applications.