LM4040A50IDCKRG4

Overview

The LM4040A50IDCKRG4 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 5V with an initial accuracy of 0.1% and a temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and functions across an ambient temperature range of -40°C to 85°C. It is housed in a space-saving SC-70 (DCK) package.

Feature Summary

• Offers high precision with 0.1% initial accuracy and low temperature drift for stable reference performance.
• Requires no external capacitors for operation and remains stable with all capacitive loads.
• Designed for portable applications due to micropower consumption and compact packaging.

Applications

• Data-Acquisition Systems
• Energy Infrastructure
• Analog Input Modules

Procurement Notes

Verify the specific ordering suffix 'G4' against the latest manufacturer documentation to confirm compliance status and availability details. Confirm that the SC-70 package designation matches the required footprint for the target PCB layout. Ensure the industrial temperature grade meets the operational environmental requirements of the design.

Selection Notes

Select this component when a 5V fixed reference with tight tolerance is required in a small surface-mount form factor. The A-grade specification ensures superior accuracy compared to lower grades. Consider the minimum operating current of 45μA when designing the biasing circuit to ensure proper regulation under light load conditions.

Part Context

This part belongs to the LM4040 series of shunt voltage references, which includes various voltage options and accuracy grades. The 'I' suffix indicates the industrial temperature range (-40°C to 85°C), while the 'DCK' suffix denotes the 5-pin SC-70 package. The 'G4' suffix typically relates to lead-free manufacturing processes.

Replacement Considerations

LM4040A50IDCKR