SI8641AB-AS1R

Digital Isolators Overview

The SI8641AB-AS1R is a Skyworks Solutions digital isolator featuring four channels with three unidirectional forward and one reverse path. It utilizes capacitive coupling technology to provide 2500 Vrms isolation voltage. The device supports data rates up to 1 Mb/s with a maximum propagation delay of 35 ns. It operates within a supply voltage range of 2.5 V to 5.5 V and is housed in a 16-SOIC package. The component is qualified under AEC-Q100 standards for automotive applications and functions reliably across an operating temperature range from -40°C to +125°C.

Digital Isolators Feature Summary

• Capacitive coupling isolation architecture
• AEC-Q100 automotive qualification
• Wide operating supply voltage range

Digital Isolators Applications

• Automotive electronic control units
• Industrial communication interfaces
• General purpose isolated signal transmission

Digital Isolators Procurement Notes

Verify the specific suffix AS1R against official Skyworks documentation to confirm packaging configuration and reel specifications. Ensure the procurement channel provides valid traceability for AEC-Q100 certified components. Cross-reference the manufacturer part number with current datasheets to validate revision levels and compliance status before finalizing orders.

Digital Isolators Selection Notes

Select this component when high-speed general-purpose isolation is required alongside automotive reliability standards. The 1 Mbps data rate suits slower control signals rather than high-bandwidth data links. Consider the 16-pin SOIC footprint for board layout constraints. Verify that the 2500 Vrms isolation level meets the specific safety requirements of the target application circuit.

Digital Isolators Part Context

This part belongs to the Si864x series of digital isolators from Skyworks Solutions. The series offers various channel configurations and isolation voltages. The SI8641AB variant specifically targets applications requiring moderate speed and robust automotive-grade performance. It complements higher-speed models like the SI8641BA which offer 150 Mbps capabilities.

Digital Isolators FAQ

What is the isolation type used in the SI8641AB-AS1R?

The device uses capacitive coupling technology for signal isolation.

Does the SI8641AB-AS1R require start-up initialization?

No, the device does not require start-up initialization upon power-up.