Four-channel unidirectional isolator with 150 Mbps throughput
The ADUM140D0BRWZ is a 4-channel, unidirectional digital isolator from Analog Devices' iCoupler series, using magnetic coupling to transfer data across an isolation barrier rated at 3750 Vrms. It is a general-purpose part that fits signal-isolation tasks in industrial fieldbus interfaces, motor-drive feedback paths, isolated SPI/UART links, and medical equipment where safety isolation is required. The 150 Mbps data rate supports high-speed protocols like CAN, RS-485, and parallel sensor interfaces without introducing jitter that would close the timing budget.
75 kV/µs CMTI — what it means for motor-drive and inverter designs
Common-mode transient immunity of 75 kV/µs (minimum) means this isolator will not glitch or lose data when the ground plane jumps several hundred volts in a few nanoseconds — exactly what happens during IGBT switching in a motor drive or solar inverter. If your system runs PWM at high DC-link voltages, this CMTI rating is the one that keeps the control-side logic from seeing false edges.
Propagation delay is 13 ns max (tpLH / tpHL) with 3 ns pulse-width distortion, which keeps the signal integrity clean enough for 150 Mbps NRZ data.
Active lifecycle and compliance
ADI lists the ADUM140D0BRWZ as Active product status. It is ROHS3 compliant.