LM4041DIZ-1.2

Voltage Reference Overview

The LM4041DIZ-1.2 is a precision micropower shunt voltage reference manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed output voltage of 1.225 V with an initial accuracy of ±1% at 25°C. The device operates within a temperature range of -40°C to +85°C and features a maximum temperature coefficient of 150 ppm/°C. It supports a cathode current range from 73 µA to 12 mA and is housed in a TO-92-3 package.

Voltage Reference Feature Summary

• Provides a stable 1.225 V reference voltage suitable for space-constrained designs
• Maintains high precision with ±1% initial accuracy at room temperature
• Operates stably across a wide operating current range without external stabilization capacitors

Voltage Reference Applications

• Portable instrumentation requiring low power consumption
• Battery-powered measurement systems
• Data acquisition systems needing precise voltage references

Voltage Reference Procurement Notes

Verify the manufacturer designation, as National Semiconductor assets were acquired by Texas Instruments. Confirm the specific suffix 'DIZ' corresponds to the TO-92-3 through-hole package and the 1.225 V fixed output variant. Ensure the grade matches the required ±1% tolerance and industrial temperature range specifications for your application.

Voltage Reference Selection Notes

Select this component when a fixed 1.225 V reference is required in a through-hole TO-92 package. It is appropriate for applications prioritizing precision over ultra-low quiescent current compared to the LM4041-N series. Consider the 150 ppm/°C temperature coefficient for thermal stability requirements.

Voltage Reference Part Context

The LM4041 is a bandgap circuit designed for precision micro-power voltage reference applications. The DIZ suffix indicates the TO-92-3 package style, while the -1.2 denotes the 1.225 V output version. This family offers pin-compatible alternatives in various packages including SOT-23 and SC-70.

Voltage Reference Replacement Considerations

LM4041DIZ-1.2/NOPB is a direct equivalent from Texas Instruments. LM4041DIM3X-1.2/NOPB serves as a surface-mount alternative in the SOT-23 package.