LM4040QDIM3X2.5/NOPB

Overview

The LM4040QDIM3X2.5/NOPB is a precision micropower shunt voltage reference from Texas Instruments, delivering a fixed output of 2.5 V with an initial accuracy of 1%. Packaged in a compact SOT-23-3 surface-mount format, it supports a maximum shunt current of 15 mA and operates within a temperature range of -40°C to +125°C. The device features a temperature coefficient of 150 ppm/°C and holds AEC-Q100 qualification for automotive reliability.

Feature Summary

• AEC-Q100 qualified for automotive applications
• Micropower shunt topology design
• Extended high-temperature operation up to 125°C

Applications

• Automotive electronic systems
• Precision measurement instrumentation
• Data acquisition circuits

Procurement Notes

Verify the specific suffix X2.5 indicates the tape-and-reel packaging configuration distinct from cut-tape variants. Confirm that the AEC-Q100 qualification status aligns with target automotive reliability standards. Ensure the operating temperature range meets the environmental requirements of the final application before procurement.

Selection Notes

Select this component when automotive-grade reliability and extended temperature performance are required. The 1% initial accuracy provides sufficient precision for many industrial applications while maintaining low power consumption. Consider the SOT-23-3 footprint constraints and thermal management needs for high-current shunt operations.

Part Context

This part belongs to the LM4040-N series of micropower shunt references. It shares functional similarities with other family members but is distinguished by its automotive qualification and extended temperature rating. The device serves as a stable voltage reference for analog-to-digital converters and sensor interfaces requiring high reliability.

Replacement Considerations

LM4040QDIM3-2.5/NOPB offers identical electrical specifications and automotive qualification but utilizes cut-tape packaging instead of reel packaging.