5000Vrms isolation in a 16-SOIC — where it fits
The Analog Devices ADUM221N0BRWZ is a 2-channel digital isolator in the iCoupler series, using magnetic coupling to deliver 5000Vrms galvanic isolation across a 16-SOIC package. It is a general-purpose unidirectional isolator rated for 150Mbps data rate with 2.5ns typical rise/fall times and 13ns max propagation delay per channel.
150 Mbps and 75 kV/µs CMTI — timing and transient budget
The 150Mbps data rate with 2.5ns rise/fall times and 13ns max propagation delay gives enough margin for isolating SPI, CAN, or RS-485 buses running at 10–50 MHz clock rates. Pulse width distortion is held to 3ns max, which keeps duty-cycle errors under 0.5% at 150 Mbps — important for clock recovery in serial links. The 75kV/µs minimum common-mode transient immunity means the part will not latch or corrupt data when a 1 kV/ns edge slams across the isolation barrier, a requirement in motor-drive PWM or high-side gate-drive feedback paths.