SI88420EC-ASR

Digital Isolators Overview

The SI88420EC-ASR is a unidirectional digital isolator from Skyworks Solutions, housed in a 16-SOIC package. It features two forward channels with zero reverse channels, supporting data rates up to 100 Mb/s and an isolation voltage of 5000 Vrms. The device operates within a supply voltage range of 3 V to 5.5 V, exhibiting a propagation delay of 18 ns and rise/fall times of 2.5 ns. It functions reliably across temperatures from -40°C to +125°C without shutdown capability.

Digital Isolators Feature Summary

• Provides galvanic isolation for signal transmission between circuits
• Supports high-speed digital communication at 100 Mb/s
• Ensures safety with 5000 Vrms insulation rating

Digital Isolators Applications

• Smart metering systems
• Industrial automation interfaces
• Medical equipment signal isolation

Digital Isolators Procurement Notes

Verify the specific suffix ASR against official Skyworks documentation to confirm reel packaging and moisture sensitivity level requirements. Ensure the 16-SOIC footprint matches the target PCB design. Confirm that the unidirectional channel configuration aligns with the system's signal flow direction before finalizing procurement.

Digital Isolators Selection Notes

Select this component when unidirectional isolation is required for low-channel-count applications. The 16-SOIC package offers a compact solution compared to wider SOIC variants. Verify that the 100 Mb/s data rate suffices for the application, as higher speeds are available in other series members.

Digital Isolators Part Context

This part belongs to the Si88420 family of CMOS digital isolators. It shares architectural similarities with the SI88420BC-ASR but differs in package type and specific electrical tolerances defined by the EC suffix. The family emphasizes reliability in noisy environments through capacitive coupling technology.

Digital Isolators Replacement Considerations

SI88420BC-ASR is listed as a parametric equivalent in distributor databases. Verify pinout compatibility and exact timing parameters before substitution.