LM4050QAEM3-4.1/NOPB

Voltage Reference Overview

The LM4050QAEM3-4.1/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring high stability. It provides a fixed output voltage of 4.096 V with an initial accuracy of ±0.1%. The device operates within a temperature range of -40°C to +125°C and features a temperature coefficient of 50 ppm/°C. It supports a maximum shunt current of 15 mA and is housed in a compact SOT-23-3 package. This component holds AEC-Q100 qualification, making it suitable for automotive environments.

Voltage Reference Feature Summary

• AEC-Q100 qualified for automotive reliability standards
• High precision with ±0.1% initial accuracy
• Micropower operation with low quiescent current
• Wide operating temperature range from -40°C to +125°C

Voltage Reference Applications

• Automotive data acquisition systems
• Precision analog-to-digital converter references
• Battery management system monitoring
• Industrial sensor signal conditioning

Voltage Reference Procurement Notes

Verify the specific suffix 'QAEM3' indicates the automotive grade and reel packaging configuration. Confirm that the '4.1' designation corresponds to the 4.096 V output variant. Ensure compatibility with SOT-23-3 footprints during PCB layout. Check for any recent product change notifications regarding manufacturing sites or materials.

Voltage Reference Selection Notes

Select this component when automotive certification is mandatory alongside tight tolerance requirements. The ±0.1% accuracy exceeds standard commercial grades, reducing calibration needs. Consider the 50 ppm/°C drift if operating across extreme thermal cycles. Compare against lower accuracy variants like the CE series if cost sensitivity outweighs precision needs.

Voltage Reference Part Context

This part belongs to the LM4050-N family of micropower shunt voltage references. It shares architectural similarities with other LM4050 variants but distinguishes itself through automotive qualification and tighter initial accuracy specifications. The family offers various output voltages and accuracy grades to suit different design constraints.

Voltage Reference Replacement Considerations

LM4050CEM3-4.1/NOPB: Commercial grade version with ±0.5% accuracy; lacks AEC-Q100 qualification. LM4050QAIM3-4.1/NOPB: Automotive grade with ±0.05% accuracy; higher precision option.