Six-channel isolator with a 5/1 input split
The ADUM161N0BRZ-RL7 is a six-channel, unidirectional digital isolator from Analog Devices using magnetic coupling technology. It provides 3000 Vrms isolation with a 150 Mbps data rate and 13 ns propagation delay, making it suitable for high-speed isolated data paths in industrial fieldbus, motor drives, and medical equipment. The channel configuration is five inputs on side 1 and one input on side 2, which suits applications like isolated SPI where the clock, MOSI, and chip-select run forward while MISO comes back on the single reverse channel.
75 kV/µs CMTI — why it matters for motor drives and inverters
The common-mode transient immunity rating of 75 kV/µs minimum means this isolator can reject fast voltage slew events that couple across the isolation barrier during IGBT or SiC switching. In a motor-drive application where the DC bus switches at tens of kV/µs, that margin prevents data corruption and false triggering on the controller side. The 2.5 ns typical rise/fall time keeps the signal edges clean at 150 Mbps without excessive ringing.