SI8661ED-AS

Digital Isolators Overview

The SI8661ED-AS is a Skyworks Solutions digital isolator featuring six channels with five unidirectional forward paths and one reverse path. It utilizes capacitive coupling technology to provide an insulation voltage of 5000 Vrms. The device supports data rates up to 150 Mb/s with a propagation delay of 8 ns. It operates within a supply voltage range of 2.375 V to 5.5 V and functions across a temperature range of -40°C to +125°C. Packaged in a SOIC-16 format, it is designed for high-speed signal isolation.

Digital Isolators Feature Summary

• Capacitive coupling technology ensures robust signal isolation without magnetic interference
• High-speed operation supporting data rates up to 150 Mb/s
• Wide operating supply voltage range accommodating various logic levels
• Automotive qualification ensuring reliability in demanding environments

Digital Isolators Applications

• Automotive powertrain control systems
• Industrial motor drive isolation
• Inverter gate driver interfaces
• Smart grid metering applications

Digital Isolators Procurement Notes

Verify the specific suffix against official Skyworks documentation to confirm package type and automotive qualification status. Ensure compatibility with required insulation voltage ratings for the target application. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm moisture sensitivity level handling requirements during storage and assembly processes.

Digital Isolators Selection Notes

Select this component when high-speed bidirectional or mixed-directional isolation is required in compact packages. Consider the 5000 Vrms insulation rating for safety-critical applications. Evaluate the 150 Mb/s data rate capability against system timing requirements. Check for AEC-Q100 qualification if automotive deployment is intended.

Digital Isolators Part Context

This part belongs to the Si866x family of digital isolators from Skyworks Solutions. The family offers various channel configurations and insulation voltages. The SI8661ED variant specifically provides a 6-channel configuration with mixed directionality. It is designed for applications requiring reliable isolation between different voltage domains.

Digital Isolators Replacement Considerations

SI8661BD-AS: Offers similar 6-channel configuration but may differ in specific package dimensions or thermal characteristics. Verify pinout compatibility before substitution. SI8661BC-AS1: Provides 3.75 kVrms insulation; ensure sufficient margin for the application's voltage requirements.