Its headline rating is 5000 Vrms isolation, which qualifies it for reinforced isolation in medical equipment (per IEC 60601-1) and industrial systems requiring a 5 kV withstand voltage. The 1 Mbps data rate handles typical SPI, UART, and GPIO isolation without margin concerns.
25 kV/µs CMTI — noise immunity in motor drives and inverters
Common-mode transient immunity of 25 kV/µs (minimum) means the isolator maintains data integrity when high-voltage switching edges slam the ground reference — a common failure point in variable-frequency drives, solar inverters, and industrial motor controllers. The 2.5 ns typical rise/fall time keeps signal edges clean at 1 Mbps, and the 100 ns max propagation delay is symmetric (tpLH = tpHL), which simplifies timing closure in bidirectional handshake interfaces.
Package and footprint
Housed in a 16-SOIC wide-body (0.295-inch width, 7.50 mm) package, the ADUM4400ARIZ provides 8.3 mm creepage distance, supporting the 5000 Vrms rating in high-reliability layouts. Surface-mount assembly with standard reflow profiles applies.