LM4041AIZ-1.2/NOPB

Overview

The LM4041AIZ-1.2/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed nominal output voltage of 1.225 V with an initial accuracy of ±0.1% 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. It supports a wide operating current range from a typical minimum of 45 µA up to 12 mA. The component utilizes a TO-92 through-hole package and maintains stability across all capacitive loads without requiring external stabilizing capacitors.

Feature Summary

• Provides stable operation with any capacitive load, eliminating the need for external stabilizing capacitors
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high initial accuracy
• Features low dynamic impedance and low noise characteristics for consistent performance

Applications

• Space-critical applications requiring sub-miniature or through-hole form factors
• Portable electronic devices utilizing micropower shunt regulation
• Precision measurement systems requiring stable reference voltages

Procurement Notes

Verify that the specific suffix 'AIZ' corresponds to the A-grade accuracy (±0.1%) and TO-92 package configuration as documented in official Texas Instruments datasheets. Confirm the 'NOPB' designation indicates lead-free and RoHS compliance. Ensure the operating environment remains within the specified industrial temperature range of -40°C to +85°C for guaranteed performance parameters.

Selection Notes

Select this component when a fixed 1.225 V reference with high precision (±0.1%) is required in a through-hole TO-92 package. It is suitable for designs needing stability with capacitive loads without external compensation. Consider the LM4041 series alternatives if surface-mount packages like SOT-23 or SC-70 are preferred, or if different accuracy grades such as B, C, or D are sufficient for the application requirements.

Part Context

This part belongs to the LM4041-N family of precision micropower shunt voltage references. The family offers both fixed and adjustable output options in various packages including SC-70, SOT-23, and TO-92. The LM4041 series is designed for portable applications due to its low minimum operating current and small footprint options, providing flexibility in design for space-constrained environments.

Replacement Considerations

LM4041BIZ-1.2/NOPB: Offers ±0.2% accuracy in TO-92 package. LM4041CIZ-1.2/NOPB: Offers ±0.5% accuracy in TO-92 package. LM4041DIZ-1.2/NOPB: Offers ±1.0% accuracy in TO-92 package.