LM4041DIMX-1.2

Voltage Reference Overview

The LM4041DIMX-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 ±0.5% at 25°C. The device operates within a temperature range of -40°C to +85°C and features a maximum temperature coefficient of 100 ppm/°C. Designed for space-constrained applications, it utilizes a compact SOT-23 surface-mount package. The component requires no external stabilizing capacitor and maintains stability with any capacitive load.

Voltage Reference Feature Summary

• Provides a stable 1.225 V reference output with high initial accuracy
• Operates with ultra-low quiescent current suitable for power-restricted designs
• Ensures stability without requiring an external stabilizing capacitor
• Available in a sub-miniature SOT-23 surface-mount package

Voltage Reference Applications

• Space-critical electronic designs
• Battery-powered instrumentation
• Portable measurement equipment
• Data acquisition systems

Voltage Reference Procurement Notes

Verify the manufacturer designation as National Semiconductor or Texas Instruments, as the company was acquired. Confirm the specific suffix DIMX corresponds to the SOT-23 package and the 1.225 V fixed output variant. Ensure the operating temperature grade matches the required application environment, typically industrial range for this model.

Voltage Reference Selection Notes

Select this component when a fixed 1.225 V reference is required in a small footprint. It is suitable for applications prioritizing low power consumption and high precision. Consider the ±0.5% accuracy and 100 ppm/°C temperature coefficient against system requirements. Verify that the shunt topology fits the circuit design constraints.

Voltage Reference Part Context

This component belongs to the LM4041-N family of precision micropower shunt voltage references. The series offers various accuracy grades and package options, including SC-70 and SOT-23. The LM4041 series is designed to replace larger through-hole references in modern surface-mount PCB layouts while maintaining high performance.

Voltage Reference Replacement Considerations

LM4041DIM3X-1.2/NOPB

Voltage Reference FAQ

Does the LM4041DIMX-1.2 require an external capacitor for stability?

No, the advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the typical output voltage of this device?

The device provides a fixed typical output voltage of 1.225 V.