SI8640BC-B-IS1R

Digital Isolators Overview

The SI8640BC-B-IS1R is a unidirectional digital isolator from the Si864x series, manufactured by Skyworks Solutions. It features four forward channels with capacitive coupling technology and an insulation voltage of 3750 Vrms. The device supports data rates up to 150 Mb/s with a propagation delay of 8 ns. Operating supply voltages range from 2.375 V to 5.5 V. It is housed in a 16-SOIC narrow package and operates within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Provides high-speed signal isolation via capacitive coupling technology for reliable data transmission.
• Offers robust electrical isolation with a 3750 Vrms insulation rating for safety-critical applications.
• Features low propagation delay and fast rise/fall times to support high-frequency digital communication.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing high-voltage isolation
• Power electronics control circuits
• General-purpose digital isolation interfaces

Digital Isolators Procurement Notes

Verify the specific suffix IS1R corresponds to the reel packaging configuration as indicated in distributor listings. Confirm that the BC variant meets the required insulation voltage specifications for your application. Ensure compatibility with the 16-SOIC narrow footprint during PCB layout. Check for AEC-Q100 qualification if automotive compliance is necessary, although this specific part number's qualification status should be cross-referenced with official datasheets.

Digital Isolators Selection Notes

Select this component when a unidirectional, four-channel isolator with 3750 Vrms insulation is required. It is suitable for applications demanding 150 Mb/s data rates and operation across extended industrial temperatures. Consider the SOIC-16 package constraints and power dissipation limits relative to your thermal design. Compare against other Si864x variants if different channel counts or insulation levels are needed.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators, which utilizes Skyworks' proprietary capacitive isolation technology. The family offers various configurations of channel counts and insulation ratings. The SI8640BC-B-IS1R specifically addresses needs for four-channel unidirectional isolation with high voltage withstand capabilities in a standard surface-mount package.

Digital Isolators Replacement Considerations

Direct substitutes within the same family include SI8640BD-B-IS1R (5 kV isolation) or SI8640BB-B-IU (2.5 kV isolation, tube package). Verify that the replacement matches the required insulation voltage and package type. Cross-reference pinouts and electrical characteristics to ensure functional equivalence.