LM4041D12IDBZRG4

Overview

The LM4041D12IDBZRG4 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225V with an initial accuracy tolerance of ±1%. The device features a temperature coefficient of 150 ppm/°C and operates within a wide current range from 45 µA to 12 mA. It utilizes a SOT-23-3 surface-mount package and functions reliably without external capacitors across all capacitive loads. The component supports industrial operating temperatures ranging from -40°C to +85°C.

Feature Summary

• Provides stable reference voltage without requiring external output capacitors for stability
• Utilizes Zener-zap reverse breakdown voltage trimming for precise output tolerance
• Maintains low dynamic impedance and low output noise characteristics
• Operates effectively across a wide working current range suitable for portable applications

Applications

• Data acquisition systems
• Power supply monitoring circuits
• Portable instrumentation and test equipment
• Process control systems

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's official documentation to confirm RoHS compliance status and any potential pinout or marking variations compared to standard versions. Ensure the ordering part number matches the exact temperature grade and accuracy class required for the design specifications before finalizing procurement.

Selection Notes

Select this component when a fixed 1.225V reference with ±1% accuracy is required in a compact SOT-23-3 package. It is suitable for designs needing low quiescent current operation down to 45 µA and stability with capacitive loads. Consider alternative accuracy grades if tighter tolerances are necessary for the application.

Part Context

This part belongs to the LM4041 series of precision micropower shunt voltage references from Texas Instruments. The series offers multiple accuracy grades (A, B, C, D) and includes both fixed and adjustable output variants. The LM4041 family is designed for space-constrained portable applications and general-purpose voltage referencing tasks.

Replacement Considerations

LM4041D12IDBZR is a direct functional equivalent within the same series offering identical electrical specifications and package type.