LM4041D12QDBZTG4

Voltage Reference Overview

The LM4041D12QDBZTG4 is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed output of 1.225 V with ±1% initial accuracy. It operates within a temperature range of -40°C to +125°C and exhibits a temperature coefficient of 150 ppm/°C. The device supports a maximum cathode current of 12 mA and draws a typical quiescent current of 80 µA. Packaged in a compact SOT-23-3 surface-mount format, it delivers low dynamic impedance and an output noise of 20 µVrms (10 Hz to 10 kHz). Designed for automotive reliability, it requires no external capacitors for stability.

Voltage Reference Feature Summary

• Automotive-grade qualification ensuring high reliability for vehicle electronics
• Micropower operation with low quiescent current consumption
• Stable performance without requiring external compensation capacitors
• Low output noise and dynamic impedance for signal integrity

Voltage Reference Applications

• Automotive data acquisition systems
• Vehicle power supply monitoring circuits
• Industrial process control instrumentation
• Portable measurement devices requiring stable references

Voltage Reference Procurement Notes

Verify the Q suffix confirms automotive grade status against the official datasheet. Ensure the DBZT package variant matches your PCB footprint requirements. Confirm RoHS compliance and lead times directly with authorized distributors. Validate that the 125°C operating range meets your specific environmental constraints before finalizing procurement.

Voltage Reference Selection Notes

Select this component when automotive reliability is required alongside precise voltage referencing. The D suffix indicates 1% accuracy suitable for general instrumentation. Consider the SOT-23-3 package for space-constrained designs. Compare thermal coefficients and noise specifications against other series members if tighter tolerances are needed.

Voltage Reference Part Context

This part belongs to the LM4041 family of micropower shunt references. It shares core architecture with non-automotive variants but includes enhanced screening for automotive applications. The family offers various accuracy grades and output voltages, providing flexibility for different precision requirements across industrial and consumer electronics sectors.

Voltage Reference Replacement Considerations

LM4041D12IDBZR is a commercial grade equivalent with identical electrical parameters but lacks automotive qualification. LM4041D12QDBZR is the reel version of the same automotive part. Verify package compatibility and temperature ratings when substituting.