The ADUM1251WARZ-RL7 is an Analog Devices I²C digital isolator using magnetic coupling to provide 2500Vrms galvanic isolation between two I²C bus segments. It integrates two bidirectional channels (Side 1/Side 2 input count 2/1) to handle the clock and data lines of an I²C link, supporting data rates up to 1Mbps — fast-mode plus capable.
This part is intended for automotive ECU applications where the isolation barrier must survive the thermal cycling and vibration profile of a vehicle's powertrain or chassis domain. The ROHS3 compliance is standard for current production.