SI8640BD-B-IS2R

Digital Isolators Overview

The SI8640BD-B-IS2R is a general-purpose digital isolator from Skyworks Solutions, Inc., featuring four forward channels with zero reverse channels. It utilizes capacitive coupling technology to provide an insulation voltage of 5000 Vrms. The device supports data rates up to 150 Mb/s and exhibits a propagation delay of 8 ns. It operates within a supply voltage range of 2.375 V to 5.5 V and maintains functionality across a temperature range of -40°C to +125°C. Packaged in a wide SOIC-16 format, it includes a shutdown feature and meets AEC-Q100 automotive qualification standards.

Digital Isolators Feature Summary

• Capacitive coupling isolation architecture for high reliability
• High common-mode transient immunity capability
• Integrated shutdown control function
• Automotive-grade qualification compliance

Digital Isolators Applications

• Industrial automation systems
• Power supply circuit isolation
• Automotive electronic control units
• General-purpose signal isolation interfaces

Digital Isolators Procurement Notes

Verify the specific suffix IS2R indicates reel packaging when sourcing. Confirm that the component meets AEC-Q100 requirements if intended for automotive applications. Ensure the wide SOIC-16 footprint matches the target PCB design constraints. Cross-reference the datasheet for humidity sensitivity handling procedures during assembly.

Digital Isolators Selection Notes

Select this model when high isolation voltage of 5 kVrms is required alongside unidirectional signal transmission. The 150 Mb/s data rate suits moderate-speed industrial protocols. Consider the wide SOIC-16 package for thermal dissipation needs compared to narrower variants. Verify power consumption limits against system budget constraints.

Digital Isolators Part Context

This component belongs to the Si864x series of digital isolators manufactured by Skyworks Solutions. It represents a specialized variant within the family designed for robust isolation applications requiring high voltage withstand capabilities. The part integrates advanced capacitive isolation technology into a standard surface-mount package.

Digital Isolators Replacement Considerations

SI8640BB-B-IU offers similar functionality but with lower 2.5 kVrms insulation voltage and QSOP-16 packaging. SI8640ET-ISR provides equivalent electrical performance but uses SOIC-Narrow-16 packaging instead of the wide variant.