SI8641AB-B-IS1

Overview

The SI8641AB-B-IS1 is a high-performance, four-channel digital isolator based on proprietary capacitive isolation technology. It provides 2.5 kVrms of isolation with three forward and one reverse channel configuration, offering high electromagnetic immunity and low power consumption. This device is designed to replace optocouplers in demanding environments where long-term reliability and high-speed operation are required.

Why Choose This Part

It offers superior transient immunity of 50 kV/microsecond and a 60-year lifespan at rated working voltages, significantly outperforming traditional optocouplers. The device operates at very low power levels, consuming only 1.4mA per channel at 1 Mbps while requiring no start-up initialization.

Applications

Getting Started

Designers should place 0.1 uF bypass capacitors as close to the VDD1 and VDD2 pins as possible to ensure stable operation across the 2.5V to 5.5V supply range. Evaluation can be performed using the Si86xxISO-KIT, which allows for testing signal integrity and propagation delays through the NB SOIC-16 package.

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