LM4041D12QDBZT

Voltage Reference Overview

The LM4041D12QDBZT is a micropower shunt voltage reference from Texas Instruments, providing a fixed nominal output of 1.23 V with a maximum initial accuracy of ±1%. It operates within an extended industrial temperature range of -40°C to +125°C and features a low temperature coefficient of 150 ppm/°C. The device supports a wide operating current range from 60 µA to 12 mA and maintains stability across all capacitive loads without requiring external output capacitors.

Voltage Reference Feature Summary

• Provides stable reference voltage with low dynamic impedance and low noise characteristics
• Operates reliably across a wide range of capacitive loads without additional components
• Designed for space-constrained portable applications using compact surface-mount packaging

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'Q' indicates automotive qualification status per official documentation. Confirm the package type matches SOT-23 requirements. Ensure the temperature grade aligns with system thermal constraints. Cross-reference datasheet revisions for any pinout or electrical parameter updates before finalizing procurement specifications.

Voltage Reference Selection Notes

Select this component when a fixed 1.23 V reference with ±1% tolerance is required in harsh thermal environments up to 125°C. It is suitable for designs prioritizing low quiescent current and high precision in limited board space. Consider alternative grades if tighter accuracy or lower temperature coefficients are necessary for the specific application.

Voltage Reference Part Context

This part belongs to the LM4041 family of precision micropower shunt voltage references. The family offers various accuracy grades and temperature ranges, utilizing Zener-zap trimming for precise voltage setting. It serves as a fundamental building block for analog signal conditioning and power management circuits requiring reliable voltage standards.

Voltage Reference Replacement Considerations

LM4041D12IDBZR: Fixed 1.23V, 1% accuracy, SOT-23, -40°C to +85°C. LM4041D12QDBZR: Fixed 1.23V, 1% accuracy, SOT-23, -40°C to +125°C.