LM4041BIM7X-1.2

Overview

The LM4041BIM7X-1.2 is a micropower shunt voltage reference manufactured by Texas Instruments, formerly National Semiconductor. It provides a fixed output voltage of 1.225 V with an initial accuracy of 0.2% at 25°C. The device operates within a temperature range of -40°C to +125°C and features a maximum temperature coefficient of 150 ppm/°C. It utilizes a SC-70 (SOT323) surface-mount package with five pins. The component supports a maximum shunt current of 12 mA and is RoHS compliant.

Feature Summary

• Provides stable 1.225 V reference voltage in sub-miniature packages
• Ensures stability with any capacitive load without external components
• Offers high precision with low temperature drift characteristics
• Designed for space-critical applications with ultra-low operating current

Applications

• Portable battery-powered equipment requiring precise voltage references
• Data acquisition systems needing stable analog-to-digital conversion references
• Space-constrained circuit designs utilizing surface-mount technology
• Industrial control systems operating across extended temperature ranges

Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the specific suffix 'NOPB' indicates lead-free and RoHS compliance. Ensure the package type matches the required SC-70 footprint. Check that the voltage grade corresponds to the 0.2% accuracy requirement. Validate the temperature range specifications against application needs.

Selection Notes

Select this component when a fixed 1.225 V reference is required in a compact form factor. Consider the 0.2% initial accuracy and 150 ppm/°C temperature coefficient for precision requirements. Evaluate the 12 mA maximum shunt current capability against load demands. Compare against other grades such as 0.1% or 1% if different accuracy levels are needed.

Part Context

This part belongs to the LM4041-N family of precision micropower shunt voltage references. The family includes adjustable versions and various accuracy grades. It is designed to replace older discrete reference solutions in modern electronics. The SC-70 package allows for automated assembly in high-volume manufacturing environments.

Replacement Considerations

LM4041BIM7X-1.2/NOPB is the complete ordering part number including packaging details.