LM2903WYDT

Overview

The LM2903WYDT is a low-power dual voltage comparator manufactured by STMicroelectronics, housed in an SOIC-8 surface-mount package. It operates within a supply voltage range of 2 V to 36 V and supports split supplies from ±1 V to ±18 V. The device features a response time of 1.3 µs and draws 1 mA of operating current. Each channel provides an output current capability of 16 mA. Input specifications include a maximum offset voltage of 7 mV and bias currents of 250 nA. It functions reliably across temperatures from -40°C to +125°C and holds AEC-Q100 automotive qualification.

Feature Summary

• Dual independent comparators designed for wide single or split supply operation
• Input common-mode voltage range includes the negative rail
• Outputs compatible with TTL, DTL, ECL, MOS, and CMOS logic families
• Automotive grade qualification ensuring reliability in vehicle applications

Applications

• Automotive electronic systems requiring qualified analog components
• General-purpose voltage monitoring circuits
• Threshold detection and level shifting interfaces

Procurement Notes

Verify the specific suffix 'WYDT' against official STMicroelectronics documentation to confirm the exact package variant and tape-and-reel packaging configuration. Ensure that the AEC-Q100 qualification status aligns with your project's automotive reliability requirements before finalizing procurement decisions.

Selection Notes

Select this component when a dual comparator with automotive certification is required. It serves as a suitable alternative to standard industrial comparators where higher temperature stability and ruggedness are necessary. Consider the SOIC-8 footprint constraints and the specific input offset characteristics during circuit design.

Part Context

This part belongs to the LM2903 family of low-power dual voltage comparators. The 'W' suffix typically denotes enhanced electrostatic discharge (ESD) performance compared to standard variants. It shares functional similarities with the LM2903Y series but offers distinct packaging and robustness characteristics tailored for demanding environments.

Replacement Considerations

The LM2903W is referenced as a similar device offering higher ESD performance. Designers should verify pin compatibility and electrical parameter overlaps before substituting other dual comparator models.