The ADUM3201WBRZ is a 2-channel, unidirectional digital isolator from Analog Devices, part of the Automotive series. It uses magnetic coupling to provide 2500Vrms galvanic isolation across a 3V to 5.5V supply range, with a data rate of 10Mbps.
25kV/µs CMTI — noise immunity for the bus
Common-mode transient immunity is specified at a minimum of 25kV/µs. In a motor-drive or inverter application where fast-switching SiC or IGBT stages generate high dv/dt on the isolated bus, this rating ensures the output does not glitch or lose data. The 50ns max propagation delay (both directions) and 3ns pulse-width distortion keep timing predictable for SPI or UART isolation links.
For automotive programs that require a multi-year supply horizon, this part does not introduce obsolescence risk at the point of design-in.