EL5481CS

Overview

The EL5481CS is a quad high-speed comparator integrated circuit manufactured by Elantec Semiconductor. It features a typical propagation delay of 4ns and supports input supply voltages ranging from 5V to 12V, with separate analog and digital supplies. The device offers true-to-ground input capability and rail-to-rail outputs compatible with CMOS and TTL logic. It is housed in an 8-SOIC package.

Feature Summary

• Quad configuration providing four independent high-speed comparators within a single package
• Supports separate analog and digital power supplies for flexible system integration
• Features true-to-ground inputs allowing operation below the negative supply rail

Applications

• Threshold detection circuits
• High-speed sampling applications
• Line receiver interfaces

Procurement Notes

Verify the manufacturer status as Elantec Semiconductor has undergone corporate changes involving Intersil and Renesas. Confirm the specific datasheet revision and RoHS compliance status for the EL5481CS variant, as legacy components may have varying environmental certifications. Ensure the 8-SOIC package dimensions match the target PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when designing systems requiring fast response times with a quad comparator topology. The ability to operate with inputs down to ground potential makes it suitable for low-voltage sensing tasks. Verify that the required output swing matches the connected logic family levels, as the rail-to-rail design facilitates direct interfacing with standard digital circuits without additional level shifting.

Part Context

The EL5481CS belongs to the EL5x81C series of high-speed comparators. This family includes pin-compatible variants such as the dual EL5281C and window comparator models. The series is designed for applications demanding rapid signal processing and precise threshold determination in compact surface-mount packages.

Replacement Considerations

Check for pin-compatible alternatives within the EL5x81C family or modern equivalents from Renesas. Verify electrical parameter compatibility, specifically propagation delay and supply voltage ranges, before substituting.