Si8640BB-B-IS
Overview
The Si8640BB-B-IS is a high-performance, quad-channel digital isolator based on proprietary capacitive coupling technology. It provides 2500Vrms isolation and supports data rates up to 150Mbps with high electromagnetic immunity and 35kV/us common-mode transient immunity. This device is designed to replace traditional optocouplers in high-speed digital signal paths, offering lower power consumption and improved reliability.
Why Choose This Part
This isolator offers ultra-low power consumption of approximately 1.6mA per channel at 1Mbps while maintaining precise timing with minimal propagation delay. Its semiconductor-based architecture ensures a long 60-year service life at rated working voltages and high resistance to temperature and aging compared to optocouplers.
Applications
Key Specifications
Getting Started
Place 0.1uF bypass capacitors as close as possible to the VDD1 and VDD2 pins on both sides of the isolation barrier to ensure stable operation. No special startup initialization is required, and the fail-safe mode ensures a predictable output state during power loss. Evaluate performance using the Si86xxISO-KIT evaluation board to test signal integrity across the 16-pin SOIC footprint.
