LM4040C82ILPR

Overview

The LM4040C82ILPR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 8.192V with an initial accuracy tolerance of ±0.5% and a temperature coefficient of 100ppm/°C. The device operates within a cathode current range from a typical minimum of 45μA up to 15mA. It is housed in a TO-92 package and is characterized for operation over an ambient temperature range of -40°C to 85°C.

Feature Summary

• Provides a stable, fixed 8.192V reference voltage suitable for precision applications
• Operates with low power consumption, requiring only a minimum cathode current of 45μA
• Maintains stability across all capacitive loads without the need for external output capacitors

Applications

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

Procurement Notes

Verify that the ordering suffix 'I' corresponds to the industrial temperature range (-40°C to 85°C) rather than the extended range ('Q'). Confirm the package type matches the required TO-92 footprint. Ensure the C grade specification aligns with the necessary ±0.5% accuracy requirements for the target circuit design.

Selection Notes

Select this component when a fixed 8.192V reference is required in a through-hole TO-92 package. The C grade offers a balance of cost and performance with ±0.5% accuracy. Consider the LM4040C82IQ if operation beyond 85°C is necessary, as it supports temperatures up to 125°C.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references from Texas Instruments. The series includes various grades (A, B, C, D) offering different accuracy levels and temperature coefficients. The 'C' grade specifically denotes ±0.5% initial accuracy and a 100ppm/°C temperature coefficient.

Replacement Considerations

LM4040C82IQ serves as the extended temperature variant of this component.