LM4041QDEM3-1.2/NO

Voltage Reference Overview

The LM4041QDEM3-1.2/NO is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed output of 1.225V with an initial accuracy of ±0.5%. Housed in a compact SOT-23-3 surface-mount package, it operates within an extended temperature range of -40°C to +125°C and meets AEC-Q100 automotive qualification standards. The device supports a maximum shunt current of 12mA and maintains stability across all capacitive loads without requiring external compensation components.

Voltage Reference Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust performance in demanding environments
• Inherent stability with any capacitive load configuration, eliminating the need for external stabilizing capacitors
• Low dynamic impedance and low noise characteristics ensure consistent voltage regulation over wide operating conditions

Voltage Reference Applications

• Automotive electronic systems requiring precise voltage monitoring and regulation
• Portable battery-powered devices utilizing micropower shunt reference architectures
• Industrial control circuits needing stable reference voltages across extended temperature ranges

Voltage Reference Procurement Notes

Verify that the specific suffix QDEM3 corresponds to the automotive-grade variant with extended temperature capabilities as documented in official TI datasheets. Confirm package integrity and pinout alignment with SOT-23-3 specifications before integration. Ensure compliance with RoHS directives and check for any recent product change notices affecting manufacturing sites or materials.

Voltage Reference Selection Notes

Select this component when automotive qualification and extended temperature operation are mandatory requirements. The fixed 1.225V output suits applications needing a stable low-voltage reference without external resistor networks. Consider the ±0.5% accuracy grade if tighter tolerances than standard industrial versions are required for precision measurement tasks.

Voltage Reference Part Context

This part belongs to the LM4041-N family of precision voltage references designed for space-constrained applications. It offers both fixed and adjustable output options in sub-miniature packages like SC-70 and SOT-23. The series utilizes advanced bandgap technology with curvature correction to maintain accuracy across varying temperatures and currents.

Voltage Reference Replacement Considerations

Publicly confirmed substitute part numbers for this specific automotive-grade variant are not available in the provided documentation. Verify compatibility with direct replacements only through official manufacturer cross-reference lists.