LM4040DIZ-4.1

Overview

The LM4040DIZ-4.1 is a micropower shunt voltage reference from Texas Instruments, providing a fixed reverse breakdown voltage of 4.1 V. It operates within an industrial temperature range of -40°C to +85°C and features a D-grade initial accuracy of ±1%. The device requires a minimum operating current of 65 μA at room temperature and supports a maximum reverse current of 15 mA. It utilizes a TO-92 package and incorporates bandgap curvature correction for stable performance across varying temperatures.

Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high accuracy
• Incorporates bandgap reference temperature drift curvature correction for stable voltage over wide temperature ranges

Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process controls
• Energy management

Procurement Notes

Verify the specific suffix 'IZ' corresponds to the TO-92 package configuration as indicated by datasheet pinout diagrams. Confirm that the 'D' grade designation aligns with the required ±1% tolerance specifications for your application. Ensure the 4.1 V output voltage matches the system requirements before finalizing procurement orders.

Selection Notes

Select this component when space-critical applications require a precision reference in a TO-92 package. It is suitable for designs needing low power consumption with a minimum operating current of 65 μA. Consider the D-grade accuracy if tighter tolerances are not critical, and verify compatibility with the industrial temperature range limits.

Part Context

This part belongs to the LM4040-N family of precision micropower shunt voltage references. The family offers various fixed voltages including 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V. The LM4040-N series is designed for easy integration without external capacitors and is available in SOT-23, SC70, and TO-92 packages.

Replacement Considerations

LM4040BIZ-4.1

FAQ

Does the LM4040DIZ-4.1 require an external capacitor?

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

What is the minimum operating current for this device?

The minimum operating current is 65 μA at room temperature (TA = TJ = 25°C) for the 4.1 V version.