Four-channel isolation with a 3/1 direction split
The ADUM241E1BRWZ is a 4-channel, unidirectional digital isolator from Analog Devices' iCoupler family, built around magnetic coupling technology. It delivers 5000 Vrms isolation in a 16-pin SOIC wide-body package, with a data rate of 150 Mbps and propagation delay of 13 ns max. The channel configuration is three inputs on Side 1 and one input on Side 2 — a 3/1 split that suits interfaces where the majority of signals flow in one direction with a single return path.
75 kV/µs CMTI — what it buys you in a motor drive or inverter
Common-mode transient immunity is rated at 75 kV/µs minimum. That figure matters when the isolator sits across a switching node that slews several hundred volts in nanoseconds — think IGBT or SiC gate drivers, motor phase outputs, or flyback converter feedback paths. A part with lower CMTI can latch or corrupt data during the fast edge. The 75 kV/µs spec here gives comfortable margin for most industrial drives and power converters without needing a secondary barrier.
Wide supply range and no external isolated power needed
The isolator does not include an integrated DC-DC converter — it passes digital signals only, not power. If the isolated side needs a local supply rail, that rail must be provided separately. The 16-SOIC wide-body footprint (7.50 mm width) is the standard industrial isolator package, compatible with many ADI and competitor pinouts in the same class.
No LTB risk or successor part has been announced.