SI8660AB-AS1R

Digital Isolators Overview

The SI8660AB-AS1R is an automotive-grade, unidirectional digital isolator from the Si86xx series by Skyworks Solutions. It features six forward channels with zero reverse channels, utilizing capacitive coupling for signal transmission. The device supports a data rate of 150 Mb/s and offers a common-mode transient immunity (CMTI) of 35 kV/µs. It operates within a supply voltage range of 2.375 V to 5.5 V and is qualified under AEC-Q100 standards. The component is housed in a 16-pin SOIC package and functions reliably across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Provides galvanic isolation via capacitive coupling technology for robust signal integrity.
• Automotive qualification ensures reliability and compliance with AEC-Q100 standards.
• High common-mode transient immunity protects against noise in electrically noisy environments.

Digital Isolators Applications

• Automotive electronic control units requiring isolated communication interfaces
• Industrial automation systems needing reliable digital signal isolation
• Power electronics circuits demanding high CMTI performance

Digital Isolators Procurement Notes

Verify the specific suffix AS1R confirms the reel packaging format and automotive grade designation. Ensure compatibility with the required 16-pin SOIC footprint during PCB layout. Confirm that the 150 Mb/s data rate meets system timing requirements. Check for RoHS compliance documentation if environmental regulations apply to the final assembly.

Digital Isolators Selection Notes

Select this component when unidirectional isolation is sufficient for the application design. The 150 Mb/s speed suits most standard automotive and industrial protocols. Consider the 35 kV/µs CMTI rating for environments with rapid voltage changes. The wide operating temperature range supports harsh automotive under-hood conditions.

Digital Isolators Part Context

This part belongs to the Si86xx family of digital isolators, which utilize Skyworks' proprietary silicon dioxide insulation technology. The family includes variants with different channel counts and isolation voltages. The SI8660AB variant specifically targets applications requiring six-channel unidirectional isolation with automotive certification.

Digital Isolators Replacement Considerations

SI8660BA-AS1R: Offers identical electrical specifications but may differ in specific manufacturing lot or minor packaging variations. Verify pinout compatibility before substitution. Other Si866x family members may require circuit redesign due to differing channel configurations or isolation ratings.