It provides galvanic isolation up to 2500 Vrms across the barrier.
At 25 Mbps, this isolator handles common serial protocols like SPI, UART, and GPIO isolation. The 42 ns max propagation delay is symmetrical, and the 2.5 ns pulse-width distortion preserves duty cycle for most PWM and encoder signals.
25 kV/µs CMTI — why it matters for motor drives and inverters
Common-mode transient immunity (CMTI) of 25 kV/µs (minimum) is the spec that determines whether the isolator maintains data integrity when fast-switching voltages slam across the isolation barrier. In a motor-drive or inverter application where IGBT/SiC FETs switch at tens of kV/µs, a lower CMTI part would corrupt the output data. This rating means the ISO7240CDW can be used in industrial drives, solar inverters, and EV chargers without adding external filtering to suppress barrier noise.
The wide-body SOIC-16 package provides 8 mm creepage distance, which helps meet IEC 60950-1 reinforced insulation requirements for mains-connected equipment.
It is ROHS3 compliant. No direct second-source alternate is listed, but the wide supply range and standard pinout mean it can be cross-referenced against other 4-channel, unidirectional capacitive-coupling isolators in the same package if dual-sourcing is required.