LM4041A12IDBZR

Overview

The LM4041A12IDBZR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225V with an initial accuracy of ±0.1%. The device features a maximum temperature coefficient of 100 ppm/°C and operates within a wide current range from 45 µA to 25 mA. It utilizes a SOT-23 surface-mount package with three pins. The component supports industrial operating temperatures ranging from -40°C to +85°C and exhibits low dynamic impedance and low output noise, ensuring stable performance without requiring external capacitors.

Feature Summary

• Provides fixed 1.225V output with high precision (±0.1%) and low temperature drift
• Operates stably across a wide cathode current range without external compensation capacitors
• Features low output noise and low dynamic impedance for sensitive applications

Applications

• Data acquisition systems
• Portable battery-powered equipment
• Precision measurement instruments

Procurement Notes

Verify the specific suffix IDBZR corresponds to tape-and-reel packaging in SOT-23 format. Confirm the A-grade designation ensures the required ±0.1% accuracy and 100 ppm/°C temperature coefficient specifications are met for the target application environment.

Selection Notes

Select this component when fixed 1.225V precision is required with minimal space constraints. The SOT-23 package suits surface-mount designs. Ensure the load current remains within the 45 µA to 25 mA operational window to maintain regulation stability and avoid exceeding power dissipation limits.

Part Context

This part belongs to the LM4041 series of micropower shunt references. It offers higher precision than C or D grades but shares the same compact footprint and basic electrical topology. It serves as a cost-effective alternative to larger packages while maintaining industrial temperature reliability.

Replacement Considerations

LM4041A12IDBZT: Same electrical specifications but in tube packaging instead of tape-and-reel.