LM4050QAEM3X4.1/NOPB

Voltage Reference Overview

The LM4050QAEM3X4.1/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring stable output voltages. It delivers a fixed output of 4.096 V with an initial accuracy of ±0.1% and a temperature coefficient of 50 ppm/°C. The device operates within a wide temperature range from -40°C to +125°C and supports a maximum cathode current of 15 mA. Packaged in a compact SOT-23-3 surface-mount case, it meets AEC-Q100 automotive qualification standards. Its low noise performance and small form factor make it suitable for space-constrained designs.

Voltage Reference Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• High precision with ±0.1% initial accuracy and 50 ppm/°C temperature stability
• Micropower operation with low quiescent current consumption
• Compact SOT-23-3 package optimized for space-limited PCB layouts

Voltage Reference Applications

• Automotive electronic systems requiring precise voltage regulation
• Portable battery-powered devices needing low power consumption
• Data acquisition systems utilizing analog-to-digital conversion
• Industrial control circuits demanding high stability over temperature

Voltage Reference Procurement Notes

Verify the complete part number including suffixes such as NOPB and packaging options like reel or cut tape. Confirm AEC-Q100 certification status if automotive compliance is required. Check datasheet revisions for any updates to electrical characteristics or mechanical dimensions. Ensure compatibility with existing board footprints and soldering profiles for SOT-23-3 packages before finalizing procurement decisions.

Voltage Reference Selection Notes

Select this component when high accuracy and automotive qualification are critical. Compare against other LM4050 variants based on required output voltage and tolerance levels. Consider thermal management requirements given the operating temperature range. Evaluate noise specifications for sensitive analog signal paths. Verify availability of preferred packaging formats for automated assembly processes.

Voltage Reference Part Context

This part belongs to the LM4050 series of micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages and accuracy grades. The QAEM3X variant specifically targets automotive applications with enhanced reliability standards. It shares common features with other LM4050 models but differs in specific electrical tolerances and qualification certifications.

Voltage Reference Replacement Considerations

LM4050AIM3X-4.1/NOPB offers similar performance with commercial grade qualification. LM4050QBEM3-4.1/NOPB provides automotive qualification with slightly different initial accuracy. LM4050CIM3X-4.1/NOPB is a commercial grade alternative with comparable electrical characteristics. Verify pinout compatibility and thermal performance when substituting these parts.