Automotive-grade isolation for the vehicle-electronics BOM
The ADUM1200WTRZ is a 2-channel, unidirectional digital isolator from the iCoupler® family, built with magnetic coupling technology. It is specifically graded for automotive applications, which means it carries the extended temperature range and reliability qualification needed for under-hood and chassis-domain electronics. The part provides 2500 Vrms isolation and supports a data rate of 10 Mbps, making it suitable for isolating SPI, UART, or general-purpose GPIO lines in automotive ECUs, battery management systems, and motor controllers.
The 10 Mbps data rate is the practical ceiling for isolated serial links — it comfortably handles a 1 MHz SPI clock or a 921.6 kbps UART with margin. The 2500 Vrms isolation rating meets the basic reinforced insulation requirement for many automotive and industrial systems, though you should verify it against your specific safety standard (e.g., IEC 60747-5-5). Propagation delay is 50 ns max, and common-mode transient immunity is 25 kV/µs, which keeps data integrity in noisy switching environments like motor drives.
The standard SOIC-8 footprint is pick-and-place friendly and has good solder-joint reliability.
For a production BOM, this means no imminent LTB risk and continued manufacturer support.