ISO7421EDR-HXY

The ISO7421EDR digital isolator features outstanding performance characteristics and reliability, surpassing optocouplers and other digital isolator technologies in overall performance. Intelligent capacitive division technology, as a next-generation digital isolator technology based on the capacitive voltage divider principle, enables precise transmission of voltage signals across the isolation barrier without modulation or demodulation. Each transmission channel operates independently, supporting multiple transmission direction configurations, with isolation voltage ratings from 1.5kV rms to 5.0kV rms and signal transmission from DC to 600Mbps. It supports 3.0V supply voltage and is compatible with 3.0V to 5.5V signal level translation. When the input power supply is unpowered or no input signal is present while the output power 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 common-mode transient immunity: 75kV/μs typical
• High immunity to radiated and conducted noise
• Low propagation delay: 9ns typical
• Isolation voltage: AC 3000Vrms
• Enhanced ESD protection: compliant with ESDA/JEDEC JS-001-2017, HBM ±8kV
• Wide operating temperature range: -40℃ to 125℃
• RoHS-compliant SOP-8 package