SI8641ET-ISR

Digital Isolators Overview

The SI8641ET-ISR is a four-channel digital isolator from the Si864x series, manufactured by Skyworks Solutions. It features capacitive coupling isolation with a rated insulation voltage of 5000 Vrms. The device supports unidirectional data transmission at speeds up to 150 Mb/s. Key electrical parameters include a maximum propagation delay of 8 ns and a typical rise/fall time of 4 ns. It operates within a supply voltage range of 2.375 V to 5.5 V and functions across an industrial temperature range of -40°C to +125°C. The component is housed in a 16-pin SOIC-Wide package.

Digital Isolators Feature Summary

• Provides high-speed signal isolation with low propagation delay for precise timing applications
• Utilizes robust capacitive coupling technology for reliable noise immunity
• Supports wide operating voltage ranges suitable for various logic families

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing high-voltage safety isolation
• Power metering and energy management circuits

Digital Isolators Procurement Notes

Verify the specific suffix 'ISR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 16-pin SOIC-Wide footprint matches the target PCB design constraints. Ensure compliance with RoHS directives as indicated in official manufacturer documentation before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when high channel count and moderate speed are required alongside strong isolation capabilities. Compare against lower-speed variants if cost sensitivity is critical, or higher-isolation models if enhanced safety margins are necessary. Consider the unidirectional nature of the channels during system architecture planning to ensure proper signal flow directionality.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators, which are designed to replace traditional optocouplers in modern electronic designs. The series offers improved performance metrics including faster switching speeds and lower power consumption compared to legacy technologies.

Digital Isolators Replacement Considerations

The TI ISO7741DWR is identified as a functionally compatible alternative in industry references. Verify pinout compatibility and parameter alignment before substitution.