150 Mbps, 3750 Vrms — isolation for high-speed interfaces
The ADI ADUM131E1BRWZ-RL is a three-channel, unidirectional digital isolator from the iCoupler family, built with magnetic coupling technology. It delivers 150 Mbps data rate per channel with 2.5 ns typical rise/fall times and 13 ns max propagation delay, making it suitable for isolating high-speed serial interfaces like SPI, CAN FD, or UART without introducing bus-timing margin problems. The 3750 Vrms isolation rating covers reinforced insulation requirements in medical, industrial, and grid-tied applications, while the 75 kV/µs minimum common-mode transient immunity (CMTI) keeps data integrity intact in motor-drive and inverter environments where fast switching edges threaten to couple noise across the barrier.
Supply range and logic compatibility
That wide supply range simplifies BOM consolidation when bridging different voltage islands on a mixed-signal board. The unidirectional channel configuration — two inputs on side 1, one input on side 2 — fits the typical isolated SPI pattern: MISO, MOSI, and SCLK crossing the barrier in one direction, with a dedicated return channel for data from the peripheral.