LM4041D12IDBZR

Overview

The LM4041D12IDBZR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed nominal output voltage of 1.225V with an initial accuracy tolerance of ±1%. The device operates within a temperature coefficient of 150 ppm/°C and supports a maximum output current of 12 mA. It utilizes a SOT-23-3 surface-mount package and functions across a working temperature range of -40°C to +85°C.

Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes bandgap reference temperature drift curvature correction for stable performance over wide operating ranges
• Employs fuse and Zener-zap reverse breakdown or reference voltage trim during wafer sort to ensure strict accuracy

Applications

• Data acquisition systems
• Power supply monitoring
• Portable instrumentation
• Process control applications

Procurement Notes

Verify the specific suffix IDBZR corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the D grade designation aligns with the required ±1% accuracy specifications for the target circuit design. Ensure compatibility with standard SOT-23 footprint layouts during PCB fabrication planning.

Selection Notes

Select this component when a low-cost, space-efficient voltage reference is needed for non-critical analog circuits. The 12 mA maximum current capability allows for direct driving of low-impedance loads without additional buffering. Consider alternative grades if tighter temperature coefficients or higher precision tolerances are mandated by the system requirements.

Part Context

This part belongs to the LM4041-N series of precision micropower shunt references from Texas Instruments. The series offers various accuracy grades including A (0.1%), B (0.2%), C (0.5%), and D (1.0%). The LM4041 family is designed for applications requiring small form factors and low power consumption in portable electronic devices.

Replacement Considerations

LM4041C12IDBZT: Offers higher precision at ±0.5% accuracy with a lower temperature coefficient of 20 ppm/°C.