LM4040D25IDBZT

Overview

The LM4040D25IDBZT is a precision shunt voltage reference manufactured by Texas Instruments, offering a fixed output of 2.5V with an initial accuracy of ±1%. Housed in a compact SOT-23-3 surface-mount package, this component operates within a temperature range of -40°C to 85°C. It features a maximum cathode current of 15 mA and a minimum operating current of 80 µA. The device exhibits a temperature coefficient of 150 ppm/°C and supports a maximum input voltage of 5V.

Feature Summary

• Provides stable 2.5V reference via shunt topology
• Ensures high precision with ±1% initial accuracy
• Operates reliably across extended industrial temperatures

Applications

• Precision analog-to-digital converter (ADC) references
• Data acquisition system voltage standards
• Portable instrumentation calibration circuits

Procurement Notes

Verify the specific suffix 'D' indicates the ±1% accuracy grade distinct from higher precision variants like 'A' or 'B'. Confirm the 'DBZT' designation corresponds to the SOT-23-3 package and tape-and-reel shipping format. Ensure compatibility with RoHS3 compliance requirements for the target assembly process.

Selection Notes

Select this model when a 2.5V reference with moderate precision is required for space-constrained designs. The SOT-23-3 footprint suits dense PCB layouts. Consider the 150 ppm/°C drift if thermal stability is critical; higher grades may be necessary for tighter tolerance applications.

Part Context

Part of the LM4040 family of micropower shunt references. This series includes various voltage options and accuracy grades. The LM4040D variant specifically targets cost-sensitive applications requiring standard precision without the complexity of series references.

Replacement Considerations

• LM4040D25IDBZR
• LM4040D25IDBZTG4

FAQ

What is the minimum operating current?

The minimum cathode current is 80 µA.

Does this part support automotive standards?

No, the LM4040D25IDBZT is not qualified for automotive standards.