SI8641BD-ASR

Digital Isolators Overview

The SI8641BD-ASR is a Skyworks Solutions digital isolator featuring four unidirectional channels with capacitive coupling. It operates within a supply voltage range of 2.5 V to 5.5 V and supports data rates up to 150 Mb/s. The device provides an insulation voltage of 5000 Vrms and a common-mode transient immunity of 35 kV/µs. Packaged in a 16-SOIC (7.50 mm wide), it exhibits a propagation delay of 8 ns and requires no start-up initialization.

Digital Isolators Feature Summary

• Capacitive coupling technology for high-speed signal isolation
• Unidirectional channel configuration for general-purpose applications
• No start-up initialization requirement for immediate operation

Digital Isolators Applications

• General-purpose digital isolation
• Industrial automation systems
• Power management circuits

Digital Isolators Procurement Notes

Verify the specific suffix ASR indicates reel packaging when sourcing. Confirm that the component meets AEC-Q100 automotive qualification if required for the target application. Ensure the SOIC-Wide package dimensions align with the PCB footprint requirements before finalizing procurement orders.

Digital Isolators Selection Notes

Select this model for applications requiring four isolated channels with unidirectional data flow. The 150 Mbps data rate suits standard communication interfaces. Consider the 5000 Vrms insulation rating for high-voltage separation needs. Verify power supply compatibility within the 2.5 V to 5.5 V operating range.

Digital Isolators Part Context

This component belongs to the Si864x series of digital isolators from Skyworks Solutions. It utilizes proprietary silicon dioxide (SiO2) isolation technology. The part is designed for robust performance in electrically noisy environments, offering reliable signal transmission across isolation barriers.

Digital Isolators Replacement Considerations

SI8641BD-AS is a tube-packaged alternative with identical electrical specifications. SI8641ET-ISR offers similar functionality but may differ in package width or humidity sensitivity classification.