LM4041DIZ-1.2/NOPB

Voltage Reference Overview

The LM4041DIZ-1.2/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed output of 1.225 V with an initial accuracy of ±1%. Housed in the compact SOT-23 package, it operates within a temperature range of -40°C to +85°C and supports a maximum cathode current of 12 mA. The device exhibits low dynamic impedance and low noise (20 µVRMS typical), ensuring stable performance across wide operating currents from 45 µA to 12 mA without requiring external stabilizing capacitors.

Voltage Reference Feature Summary

• Eliminates the need for external stabilizing capacitors while maintaining stability with any capacitive load
• Provides high precision through fuse and Zener-zap reverse breakdown voltage trim during wafer sort
• Features bandgap reference temperature drift curvature correction for stable accuracy over wide temperature ranges

Voltage Reference Applications

• Portable battery-powered equipment requiring space-critical solutions
• Data acquisition systems needing precise voltage references
• Handheld instruments and meters

Voltage Reference Procurement Notes

Verify the specific suffix 'I' indicates the industrial temperature range (-40°C to +85°C) rather than extended range. Confirm the 'D' grade corresponds to the ±1% initial accuracy specification. Ensure the 'Z' suffix matches the required tape-and-reel packaging format for automated assembly processes.

Voltage Reference Selection Notes

Select this component when a fixed 1.225 V reference is required in a small SOT-23 footprint. It is suitable for applications demanding low power consumption and high precision without external compensation components. Consider alternative grades if tighter tolerance or wider temperature operation is necessary.

Voltage Reference Part Context

This part belongs to the LM4041-N family of precision micropower shunt voltage references. The family offers various accuracy grades and packages, including SC-70 and TO-92, to accommodate different design constraints. The LM4041 series is designed for flexibility, allowing designers to choose between fixed and adjustable versions based on application needs.

Voltage Reference Replacement Considerations

LM4041DIM3X-1.2/NOPB: Same electrical specifications but in SOT-23-3 package instead of SOT-23-3 (Note: Verify package compatibility as both are SOT-23 variants). LM4041QBIM3-1.2/NOPB: Offers automotive qualification and extended temperature range.