The ADUM141E0BRWZ-RL is a 4-channel, unidirectional digital isolator from Analog Devices' iCoupler series, built on magnetic coupling technology. It provides 3750 Vrms isolation between input and output sides, with a 3/1 channel direction split (three inputs on side 1, one input on side 2). The part is rated for a 150 Mbps data rate, with 13 ns typical propagation delay and 2.5 ns rise/fall times, making it suitable for high-speed digital interfaces such as SPI, UART, or parallel buses that need galvanic isolation.
The 3750 Vrms isolation voltage is the basic insulation rating for this part, sufficient for reinforced isolation in many industrial and medical applications when used with proper PCB creepage. The common-mode transient immunity of 75 kV/µs minimum is the key spec for motor-drive and inverter environments: it tells you the isolator will not glitch or latch when high-voltage switching edges slam the isolation barrier. A lower CMTI part would need external filtering or derating in those applications. The 150 Mbps data rate means this part can pass a 75 MHz clock or a 150 Mbps NRZ data stream cleanly — fast enough for isolated SPI at 50 MHz or full-speed USB isolation.
The part is ROHS3 compliant.
Package and supply voltage flexibility
Housed in a 16-pin SOIC with 7.50 mm body width, the package provides 8 mm creepage between input and output sides when properly laid out — enough for basic isolation at 3750 Vrms. That flexibility simplifies mixed-voltage designs where a low-voltage MCU talks to a higher-voltage peripheral across an isolation barrier.