LM4040C50IDBZRG4

Overview

The LM4040C50IDBZRG4 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 5V with an initial accuracy of 0.5% and a temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and functions across an extended temperature range of -40°C to +125°C. Packaged in a space-saving SOT-23-3 format, it requires no external capacitors for stability.

Feature Summary

• Provides stable reference voltage without requiring external output capacitors
• Maintains low dynamic impedance and noise characteristics across operating conditions
• Operates reliably over an extended industrial temperature range

Applications

• Data-acquisition systems
• Energy infrastructure monitoring
• Analog input modules
• Field transmitters
• Precision audio circuits

Procurement Notes

Verify the component grade matches the required tolerance specifications before integration. Confirm that the package marking aligns with the specific ordering suffix to ensure correct electrical parameters. Check for RoHS compliance status if environmental regulations apply to the final assembly process.

Selection Notes

Select this component when a fixed 5V reference is needed with moderate precision requirements. The C-grade offers a balance between cost and performance for general-purpose applications. Ensure the circuit design accommodates the minimum operating current to maintain regulation stability during low-load conditions.

Part Context

This part belongs to the LM4040 series of shunt voltage references from Texas Instruments. The series includes various voltage options and grades (A, B, C, D) to suit different accuracy needs. The DBZR suffix indicates surface-mount packaging in a reel format, suitable for automated assembly processes.

FAQ

Does the LM4040C50IDBZRG4 require an output capacitor?

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

What is the maximum cathode current for this reference?

The recommended operating condition specifies a maximum cathode current of 15mA.