LM4041DQDBZR

Voltage Reference Overview

The LM4041DQDBZR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225V with an initial accuracy of 1.0%. The device operates within an extended temperature range from -40°C to +125°C and utilizes a 3-pin SOT-23 surface-mount package. It features low dynamic impedance, low noise, and stability with 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 wide current ranges and temperature extremes
• Maintains stability with all capacitive loads without requiring external output capacitors

Voltage Reference Applications

• Data acquisition systems
• Power supply monitoring circuits
• Portable battery-powered equipment
• Precision audio applications

Voltage Reference Procurement Notes

Verify the specific suffix 'Q' indicates the extended temperature grade (-40°C to +125°C) and 'D' denotes the 1.0% accuracy class. Confirm the 'BZ' suffix corresponds to the SOT-23-3 package type. Ensure the ordering code matches the exact tolerance and thermal specifications required for the target application environment.

Voltage Reference Selection Notes

Select this component when a compact, low-power shunt reference is needed for harsh environments. The D-grade offers cost-effective precision compared to tighter tolerances. The Q-grade ensures functionality in high-temperature automotive or industrial settings where standard industrial grades may fail.

Voltage Reference Part Context

This part belongs to the LM4041 family of micropower shunt references. The family includes adjustable versions and various accuracy grades (A, B, C, D). The LM4041xQ variant specifically targets extended temperature applications, distinguishing it from the standard LM4041xI industrial grade parts.

Voltage Reference Replacement Considerations

LM4041D12IDBZR: Similar 1.2% accuracy but limited to industrial temperature range (-40°C to +85°C). LM4041B12IDBZR: Higher 0.2% accuracy but restricted to industrial temperature range.