LM4041A12IDBZT

Overview

The LM4041A12IDBZT is a precision shunt voltage reference from Texas Instruments, providing a fixed output of 1.225 V with an initial accuracy of ±0.1%. It operates within a temperature range of -40°C to +85°C and features a maximum temperature coefficient of 20 ppm/°C. The device supports a maximum cathode current of 12 mA and requires a minimum operating current of 68 µA. Packaged in a compact SOT-23-3 surface-mount case, it offers low noise performance suitable for sensitive analog circuits.

Feature Summary

• Provides high-precision fixed voltage reference with tight initial accuracy tolerance
• Features ultra-low temperature coefficient for stable operation across industrial temperatures
• Utilizes compact SOT-23-3 surface-mount package for space-constrained designs

Applications

• Precision data acquisition systems requiring stable reference voltages
• Portable battery-powered equipment due to low power consumption
• Industrial process control instrumentation

Procurement Notes

Verify the specific suffix 'A' indicates the ±0.1% accuracy grade and '12' denotes the 1.225V output. Confirm the 'DBZR' suffix corresponds to the tape-and-reel packaging format. Ensure the component meets RoHS compliance requirements for your manufacturing process. Cross-reference the manufacturer part number with official distributor catalogs to confirm availability and authenticity before procurement.

Selection Notes

Select this component when a fixed 1.225V reference with high precision is required. The ±0.1% accuracy makes it suitable for applications demanding tight voltage tolerances. Consider the SOT-23-3 package size for board space limitations. Evaluate the thermal stability provided by the low temperature coefficient for environments with significant temperature variations.

Part Context

This component belongs to the LM4041 series of micropower shunt voltage references. The series includes various fixed voltage options and accuracy grades. The LM4041 family is designed to replace Zener diodes in applications requiring better stability and lower noise. It serves as a key element in power management and signal conditioning circuits.

Replacement Considerations

Compatible alternatives include LM4040A12IDBZT or LM4041B12IDBZT depending on required accuracy and voltage specifications. Verify pinout compatibility and thermal characteristics when substituting.