SI8640BD-AS2R

Digital Isolators Overview

The SI8640BD-AS2R is a Skyworks Solutions digital isolator featuring four unidirectional channels in a 16-pin SOIC package. It utilizes capacitive coupling technology to provide 5000 Vrms isolation voltage and supports data rates up to 150 Mb/s. The device operates within a supply voltage range of 2.375 V to 5.5 V, with a typical operating current of 6.1 mA per channel. Key electrical parameters include an 8 ns propagation delay, 4 ns rise/fall times, and a common-mode transient immunity (CMTI) of 35 kV/µs. It is qualified under AEC-Q100 standards for automotive applications and functions reliably across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Provides high-speed signal transmission with 150 Mb/s data rate capability
• Ensures robust electrical safety through 5000 Vrms reinforced isolation barrier
• Delivers high noise immunity with 35 kV/µs common-mode transient rejection
• Supports wide operating voltage ranges suitable for diverse logic interfaces

Digital Isolators Applications

• Automotive electronic control units requiring certified isolation
• Industrial motor drives and power conversion systems
• Medical equipment requiring patient isolation barriers
• High-voltage measurement instrumentation interfaces

Digital Isolators Procurement Notes

Verify the specific suffix AS2R against official Skyworks documentation to confirm reel packaging and automotive grade qualification. Ensure the ordering part number matches the required pinout and isolation ratings. Cross-reference datasheet revisions to confirm compatibility with existing design specifications before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when four isolated bidirectional or unidirectional channels are required in a compact surface-mount footprint. Consider the 150 Mb/s speed and 35 kV/µs CMTI for noisy environments. Verify that the 16-pin SOIC dimensions fit the PCB layout constraints and that the 2.375 V minimum supply voltage aligns with the system's power architecture.

Digital Isolators Part Context

This part belongs to the Si864x family of ultra-low power digital isolators from Skyworks Solutions. The series is designed to replace traditional optocouplers in various industrial and automotive applications. The SI8640BD variant specifically targets automotive markets with its AEC-Q100 qualification and enhanced reliability features compared to general-purpose counterparts.

Digital Isolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.