LM4040D82ILPR

Overview

The LM4040D82ILPR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 8.192V with a maximum initial tolerance of 1.0% and a temperature coefficient of 150ppm/°C, corresponding to the D grade. The device operates within an ambient temperature range of -40°C to 85°C. It requires a minimum cathode current of 45µA (typical) and supports up to 15mA. The component is housed in a TO-92-3 package.

Feature Summary

• Provides stable reference voltage with low dynamic impedance and low noise characteristics
• Operates without external output capacitors while remaining stable with all capacitive loads
• Utilizes fuse and Zener-zap reverse breakdown voltage trim for precise output tolerances

Applications

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

Procurement Notes

Verify the specific ordering suffix 'ILPR' against the manufacturer's latest Package Option Addendum to confirm the exact package type and tape-and-reel specifications. Ensure the D grade designation matches the required 1.0% accuracy and 150ppm/°C temperature coefficient for the target application environment.

Selection Notes

Select this component when a fixed 8.192V reference is needed with industrial temperature stability (-40°C to 85°C). The D grade offers a balance of cost and performance for applications not requiring the tighter tolerances of A or B grades. Consider the TO-92 package if through-hole mounting is preferred over surface-mount options like SOT-23.

Part Context

This part belongs to the LM4040 series of shunt voltage references, which includes various grades (A, B, C, D) and output voltages ranging from 2.048V to 10V. The series is designed for portable and space-saving applications due to its low power consumption and compact packaging options including SOT-23, SC-70, and TO-92.

Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the LM4040 family that may offer different voltage outputs or tighter accuracy grades such as LM4040C82ILPR or LM4040B82ILPR.