5000 Vrms isolation in a 16-SOIC wide-body
Channel configuration is 2 inputs on side 1 and 2 inputs on side 2, all unidirectional. With a 1 Mbps data rate and 100 ns max propagation delay, it is sized for isolated SPI, UART, and general-purpose digital signal paths rather than high-speed serial links.
25 kV/µs CMTI — what it means for motor-drive and inverter designs
In a motor-drive or solar-inverter environment where IGBT or SiC switching edges produce fast voltage transients across the isolation barrier, a digital isolator with insufficient CMTI can corrupt the output data or latch up. The ADUM4402ARWZ-RL's 25 kV/µs rating keeps the data path clean under those conditions, which is the difference between a reliable gate-drive interface and one that sporadically glitches.
This means the same part can sit between a 3.3 V FPGA and a 5 V fieldbus transceiver, or between a 5 V sensor interface and a 3.3 V microcontroller. No external level shifting is needed, which saves board area and BOM cost.
For a production BOM, this part is a current-design-in candidate, not a last-time-buy risk.