LM4041D12IDBZT

Voltage Reference Overview

The LM4041D12IDBZT 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 tolerance of ±1%. The device operates within a temperature range of -40°C to +85°C and features a typical temperature coefficient of 150 ppm/°C. It utilizes a SOT-23 surface-mount package with three pins. The component supports a maximum cathode current of 12 mA and maintains stability without requiring external capacitors across all capacitive loads.

Voltage Reference Feature Summary

• Provides stable reference voltage without the need for external output capacitors
• Utilizes Zener-zap reverse breakdown voltage trimming for tight output tolerances
• Maintains low dynamic impedance and low output noise characteristics
• Operates reliably across a wide cathode current range

Voltage Reference Applications

• Data acquisition systems
• Power supply monitoring circuits
• Portable battery-powered instrumentation
• Process control equipment

Voltage Reference Procurement Notes

Verify the specific suffix IDBZT corresponds to the tape-and-reel packaging configuration rather than tube packaging when sourcing. Confirm the D-grade designation aligns with the required ±1% accuracy and 150 ppm/°C temperature coefficient specifications for your design constraints. Ensure the industrial temperature range meets operational requirements.

Voltage Reference Selection Notes

Select this component when a fixed 1.225 V reference is required in a compact SOT-23 footprint. It is suitable for applications demanding low power consumption with a minimum operating current of approximately 45 µA. Consider alternative grades such as C or B if tighter accuracy or lower temperature coefficients are necessary for higher precision requirements.

Voltage Reference Part Context

This part belongs to the LM4041 family of micropower shunt voltage references from Texas Instruments. The series offers various accuracy grades (A, B, C, D) and adjustable versions. The LM4041D variant specifically targets cost-sensitive applications while maintaining precision through internal trimming processes, distinguishing it from higher-grade counterparts with stricter thermal performance metrics.

Voltage Reference Replacement Considerations

LM4041C12IDBZT: Offers improved ±0.5% accuracy and 100 ppm/°C temperature coefficient. LM4041B12IDBZT: Provides ±0.2% accuracy with 100 ppm/°C temperature coefficient. LM4041A12IDBZT: Delivers highest precision at ±0.1% accuracy with 100 ppm/°C temperature coefficient.