SI8641ED-ASR

Digital Isolators Overview

The SI8641ED-ASR is a single-channel digital isolator from Skyworks Solutions, designed for robust signal transmission across isolation barriers. It features a high common-mode transient immunity of 50 kV/µs and operates with a supply voltage range of 3.0 V to 5.5 V on both sides. The device provides up to 5 kVrms isolation voltage and supports data rates up to 150 Mbps. It utilizes capacitive coupling technology for reliable operation in noisy environments.

Digital Isolators Feature Summary

• High common-mode transient immunity ensures reliable signal integrity in electrically noisy industrial applications.
• Capacitive coupling technology provides long-term reliability without the degradation risks associated with optical components.
• Single-channel configuration simplifies board layout while maintaining high-speed data transmission capabilities.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safe patient isolation
• Power electronics control circuits

Digital Isolators Procurement Notes

Verify the specific suffix 'ASR' indicates the correct tape and reel packaging configuration required for automated assembly processes. Confirm that the operating temperature range meets your system's environmental specifications before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when a single isolated channel is sufficient for your design needs. Ensure the input logic levels are compatible with your microcontroller or driver interface. Consider the package size constraints as the SOIC-8 footprint may impact PCB layout density compared to smaller alternatives.

Digital Isolators Part Context

This part belongs to Skyworks' Si86xx family of digital isolators, which are widely used in industrial and automotive sectors. The family offers various channel counts and isolation voltages, allowing designers to scale solutions based on complexity and safety requirements.

Digital Isolators Replacement Considerations

Check for direct pin-compatible replacements within the same manufacturer's portfolio if supply chain issues arise. Verify that any substitute maintains the same isolation voltage rating and data rate specifications to ensure system compliance.

Digital Isolators FAQ

What is the maximum data rate supported by the SI8641ED-ASR?

The device supports data rates up to 150 Mbps.

Does this isolator use magnetic or optical coupling?

It uses capacitive coupling technology for signal transmission across the isolation barrier.