LM4040D25IDCKT

Overview

The LM4040D25IDCKT is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5V with an initial accuracy of ±1%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 150ppm/°C. It is housed in a compact SC-70-5 (SOT-353) surface-mount package. Key electrical specifications include a maximum cathode current of 80µA, a maximum output current of 15mA, and a noise level of 35µVrms from 10Hz to 10kHz.

Feature Summary

• Micropower operation with low cathode current consumption
• High precision fixed voltage output with tight initial tolerance
• Compact SC-70-5 surface-mount packaging for space-constrained designs

Applications

• Portable battery-powered instrumentation
• Data acquisition systems requiring stable reference voltages
• Microcontroller analog-to-digital converter references

Procurement Notes

Verify the specific suffix 'IDCKT' against the official datasheet to confirm the SC-70-5 package and tape-and-reel shipping configuration. Ensure the operating temperature range and accuracy class meet the design requirements before finalizing procurement.

Selection Notes

Select this component when a low-cost, high-precision 2.5V reference is needed in a small footprint. Compare the 150ppm/°C temperature coefficient against stricter requirements; if higher stability is required, consider the LM4040B or LM4040A variants which offer tighter tolerances.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references. The series offers various fixed voltage options and accuracy grades (A, B, C, D) packaged in SOT-23 and SC-70-5 formats, designed for general-purpose precision applications.

Replacement Considerations

LM4040D25IDCKR: Identical electrical specifications and package, differing only in reel quantity or distributor-specific ordering suffix.