SI8661ED-B-IS

Digital Isolators Overview

The SI8661ED-B-IS is a six-channel digital isolator from Skyworks Solutions, utilizing capacitive coupling technology for signal transmission. It features a unidirectional polarity configuration with five forward and one reverse channel. The device supports data rates up to 150 Mbps and offers an insulation voltage of 5000 Vrms. Operating within a supply voltage range of 2.375 V to 5.5 V, it exhibits a propagation delay of 8 ns. The component is housed in a 16-pin SOIC-Wide package and is designed for operation across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Capacitive coupling isolation architecture
• High-speed data transmission capability
• Wide operating supply voltage range
• No start-up initialization required

Digital Isolators Applications

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

Digital Isolators Procurement Notes

Verify the specific suffix 'B-IS' against the manufacturer's current datasheet to confirm package dimensions and tape-and-reel specifications. Ensure that the 5 kVrms insulation rating aligns with your system's safety clearance requirements. Confirm RoHS compliance status directly with the supplier documentation prior to finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when high-speed unidirectional isolation is required without initialization delays. The 150 Mbps data rate suits fast communication protocols. The wide supply voltage range allows flexibility in logic level interfacing. Consider the SOIC-Wide package for PCB layout compatibility if space permits compared to narrower variants.

Digital Isolators Part Context

This part belongs to the Si866x series of digital isolators. It provides robust galvanic isolation between different ground domains. The capacitive coupling method eliminates the need for magnetic components. It serves as a reliable interface solution for noisy environments where signal integrity is critical.

Digital Isolators Replacement Considerations

Check for direct pin-compatible alternatives within the same series that may offer updated packaging or minor parameter variations. Verify that any substitute maintains the 5000 Vrms insulation rating and 150 Mbps speed. Ensure the replacement part number matches the exact channel count and polarity configuration.