SI8640BB-AS1R

Digital Isolators Overview

The SI8640BB-AS1R is a Skyworks Solutions digital isolator featuring four unidirectional channels with a data rate of 150 Mb/s. It provides an insulation voltage of 2500 Vrms and utilizes capacitive coupling technology. The device operates within a supply voltage range of 2.375 V to 5.5 V, consuming 17.5 mA of power current. Key timing parameters include an 8 ns propagation delay, 4 ns rise/fall times, and 5 ns pulse width capability. It supports AEC-Q100 automotive qualification and functions across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Capacitive coupling isolation architecture for high reliability
• AEC-Q100 qualified for automotive applications
• Integrated shutdown mode for power management

Digital Isolators Applications

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

Digital Isolators Procurement Notes

Verify the AS1R suffix indicates reel packaging configuration. Confirm AEC-Q100 compliance status through official Skyworks documentation. Ensure input voltage levels match the specified 2.375 V to 5.5 V operational range. Check humidity sensitivity handling requirements during storage and assembly.

Digital Isolators Selection Notes

Select this component when four unidirectional channels are required at 150 Mb/s speeds. Consider the 2500 Vrms isolation rating for safety barriers. Evaluate the SOIC-NB-16 package constraints against PCB layout needs. Compare power consumption against system thermal budgets.

Digital Isolators Part Context

This part belongs to the Si864x series of general-purpose digital isolators from Skyworks Solutions. It complements other variants in the family by offering specific channel counts and speed ratings tailored for robust signal isolation in demanding environments.

Digital Isolators Replacement Considerations

SI8640BB-AU: Same specifications but tube packaged. SI8640EC-B-IS1: Higher 3.75 kV isolation rating.