SI8422BB-D-IS-HXY

The SI8422BB-D-IS digital isolator delivers outstanding performance and reliability, surpassing optocouplers and other digital isolator technologies. This device employs a next-generation intelligent voltage division technique based on capacitive coupling, enabling precise voltage signal transmission across the isolation barrier without modulation or demodulation. Each transmission channel operates independently, supporting multiple signal direction configurations, with isolation voltage ratings from 1.5kV rms to 5.0kV rms and signal transmission rates from DC to 600Mbps. It supports 3.0V supply voltage and is compatible with 3.0V to 5.5V logic level translation. When the input-side supply is unpowered or no input signal is present while the output-side supply is active, the isolator output defaults to a defined logic level.

Applications

• General-purpose multi-channel isolation
• Industrial fieldbus isolation
• Industrial automation systems
• Isolated switching power supplies
• Isolated ADC and DAC
• Motor control

Key features

• Ultra-low power consumption: 0.58mA per channel (at 1Mbps)
• High data rate: 200Mbps
• High CMTI: 75kV/μs typical
• High immunity to radiated and conducted noise
• Low propagation delay: 9ns typical
• Isolation voltage: 3000Vrms AC
• Enhanced ESD protection: compliant with ESDA/JEDEC JS-001-2017, HBM ±8kV
• Wide operating temperature range: -40℃ ~ 125℃
• RoHS-compliant SOP-8 package