5000 Vrms isolation with 150 Mbps throughput — the spec that decides the fit
The ADUM240E1BRWZ is a 4-channel, unidirectional digital isolator from Analog Devices' iCoupler series, built around magnetic coupling technology. It delivers 5000 Vrms isolation in a 16-SOIC wide-body package, with a 150 Mbps data rate that comfortably handles SPI, UART, and parallel bus isolation without adding timing margin headaches. The 75 kV/µs common-mode transient immunity (CMTI) means it holds the data path clean across fast-switching boundaries — think SiC and GaN inverter nodes, motor drive phases, or any environment where the ground plane jumps at tens of kilovolts per microsecond.
Supply flexibility and temperature range — one part for mixed-voltage, harsh-environment designs
Propagation delay is a max of 13 ns for both tpLH and tpHL, with pulse-width distortion held to 3 ns max, keeping the signal edges symmetrical enough for most timing-sensitive protocols.
4/0 channel configuration — all four channels run the same direction
This variant has all four inputs on Side 1 and all four outputs on Side 2 (4/0 configuration). If your application needs bidirectional isolation or a mix of input/output directions, the ADUM240E family includes other channel-direction options. The unidirectional channel type is clearly marked, so there is no ambiguity about signal flow when laying out the board.