LM4041DIDBZTG4

Voltage Reference Overview

The LM4041DIDBZTG4 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225 V with an initial accuracy of ±1%. The device features a temperature coefficient of 150 ppm/°C and operates within a wide current range from a minimum of 60 µA to a maximum of 12 mA. It supports input voltages up to 15 V and functions reliably across an extended temperature range of -40°C to +85°C. Packaged in a compact SOT-23-3 surface-mount case, it requires no external capacitors for stability.

Voltage Reference Feature Summary

• Provides stable reference voltage without requiring external output capacitors
• Utilizes Zener-zap reverse breakdown voltage trimming for precise accuracy
• Designed for low dynamic impedance and low noise performance
• Operates stably across a wide range of capacitive loads

Voltage Reference Applications

• Data acquisition systems
• Battery-powered equipment
• Precision audio applications
• Process control instrumentation

Voltage Reference Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS standards. Confirm the 'D' grade corresponds to the required 1% accuracy and 150 ppm/°C temperature coefficient specifications. Ensure the DBZT package designation matches the SOT-23-3 footprint requirements for the target PCB layout. Check manufacturer documentation for any end-of-life notices or production lifecycle status updates.

Voltage Reference Selection Notes

Select this component when a fixed 1.225 V reference is required with moderate precision. It is suitable for applications where space constraints favor the SOT-23-3 package over larger alternatives. Consider the 150 ppm/°C drift if high thermal stability is critical. Compare against higher-grade options like the B or C series if tighter tolerance or lower temperature coefficients are necessary for the design.

Voltage Reference Part Context

This part belongs to the LM4041 family of precision micropower shunt references. It shares architectural similarities with the LM4040 but offers a fixed 1.225 V output instead of adjustable or higher fixed voltages. The family utilizes advanced trimming techniques to achieve specified accuracies across industrial and extended temperature ranges while maintaining low power consumption.

Voltage Reference Replacement Considerations

LM4041DIZ-ADJ/NOPB is a confirmed substitute offering similar functionality.