LM4040A41IDBZT

Overview

The LM4040A41IDBZT is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 4.096V with an initial accuracy of ±0.1% and a temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and functions at temperatures from -40°C to 85°C. Packaged in a space-saving SOT-23-3 format, it requires no external capacitors for stability.

Feature Summary

• Maintains stable output voltage across wide operating currents and temperatures
• Operates without requiring external output capacitors
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort

Applications

• Data-Acquisition Systems
• Energy Infrastructure
• Analog Input Module
• Field Transmitters
• Precision Audio

Procurement Notes

Verify the specific suffix 'DBZT' corresponds to the SOT-23 package and tape-and-reel packaging configuration. Confirm that the 'A' grade designation matches the required 0.1% tolerance specification. Ensure the 'I' suffix aligns with the industrial temperature range requirements for the target application environment.

Selection Notes

Select this component when high precision is required alongside low power consumption. The A-grade classification ensures tight tolerance limits suitable for sensitive measurement circuits. The SOT-23-3 package facilitates compact board layouts compared to larger through-hole alternatives.

Part Context

This part belongs to the LM4040 series of shunt voltage references. The series offers various fixed output voltages including 2.048V, 2.5V, 3V, 5V, 8.192V, and 10V. Different grades (A, B, C, D) provide varying levels of accuracy and temperature coefficients to suit diverse design constraints.

Replacement Considerations

LM4040B41IDBZT

FAQ

Does the LM4040A41IDBZT require an output capacitor?

No, the device is stable with all capacitive loads and does not require an external output capacitor for operation.

What is the minimum cathode current for this device?

The typical minimum cathode current is 45μA at 25°C, ensuring efficient operation in low-power applications.