Single-channel iCoupler with 2500Vrms isolation
The ADUM3100ARZ: It uses magnetic coupling to provide 2500Vrms galvanic isolation between input and output, with a data rate of 25Mbps. It comes in an 8-SOIC surface-mount package.
25kV/µs CMTI — what it means for motor-drive and inverter designs
The common-mode transient immunity is rated at a minimum of 25kV/µs. In a motor-drive or inverter application, fast-switching SiC or IGBT stages generate high dv/dt across the isolation barrier. A CMTI of 25kV/µs means the output will not glitch or lose data when a 2500V/µs transient slams across the barrier — a common failure point in cheaper optocoupler-based isolators.
Propagation delay and pulse-width distortion
Maximum propagation delay is 18ns in either direction, and pulse-width distortion is held to 2ns max.
Supply range and unidirectional channel
The supply voltage range of 3V to 5.5V allows the part to interface directly with 3.3V or 5V logic on either side without a level translator. Note that this is a unidirectional part with one input on side 1 and zero inputs on side 2 — it only passes signals from side 1 to side 2. For bidirectional protocols like I2C, you would need two channels or a dedicated bidirectional isolator.