LM4040D50IDCKR

Overview

The LM4040D50IDCKR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 5V with an initial accuracy tolerance of 1% and a temperature coefficient of 150 ppm/°C. The device operates within a cathode current range from a minimum of 79 µA to a maximum of 15 mA. It is housed in a space-saving SC-70-5 package and is characterized for operation over an ambient temperature range of -40°C to 85°C.

Feature Summary

• Provides a stable 5V reference voltage with low dynamic impedance and low noise characteristics.
• Operates without external capacitors and remains stable with all capacitive loads.
• Designed for portable applications due to micropower consumption and compact packaging.

Applications

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

Procurement Notes

Verify the specific suffix 'I' indicates the industrial temperature range (-40°C to 85°C) and 'D' denotes the 1% accuracy grade. Confirm the 'DCK' suffix corresponds to the SC-70-5 package. Ensure compatibility with system requirements regarding the 150 ppm/°C temperature coefficient and 15 mA maximum cathode current before finalizing procurement.

Selection Notes

Select this component when a 5V reference with 1% tolerance is required in a small footprint. It is suitable for designs needing stability across varying capacitive loads without additional compensation components. Consider the extended operating current range and low power consumption for battery-powered or energy-constrained applications.

Part Context

This part belongs to the LM4040 series of shunt voltage references, which offers various fixed output voltages and accuracy grades (A, B, C, D). The LM4040D50IDCKR specifically represents the D-grade version with 1% accuracy, packaged in SC-70-5, designed for industrial temperature ranges.

Replacement Considerations

LM4040D50IDCKRG4