25kV/µs CMTI — why it matters for motor drives and inverters
In a motor-drive or inverter environment, the switching node can slam the isolation barrier with several kilovolts per microsecond. If the isolator's CMTI is too low, data gets corrupted or the output latches to the wrong state. 25kV/µs is a solid industrial-grade number — enough for most VFD and servo-drive applications without needing a reinforced-isolation part.
Supply range and channel direction — design-in checklist
Supply voltage covers 3V to 5.5V on both sides, so you can run the primary at 3.3V and the secondary at 5V (or vice versa) without a separate level shifter. The channel configuration is 2 inputs on Side 1, 0 inputs on Side 2 — meaning both channels drive from the same side. If you need a bidirectional pair or a 1/1 split, the ADUM1281ARZ (3000Vrms, 1/1) is the closer match.
The iCoupler series is active per the product status.