ADM3251EARWZ: High-Performance Digital Isolator for RS232 Applications | Analog Devices Inc. 2025-04-21 The ADM3251EARWZ from Analog Devices Inc. is a high-performance digital isolator designed for RS232 applications, featuring 2500Vrms isolation, 460Kbps data rate, and magnetic coupling technology. Ideal for industrial, medical, and automotive systems.