CHIP ALLOWS ISOLATED USB

摘要

Analog Devices' new ADuM4160 bidirectional isolator provides UL (Underwriters Laboratories) 1577-rated,5-kV isolation for 1.5- or 12-Mbps USB (Universal Serial Bus)-data lines. The isolator has propagation delay comparable with that of a standard hub and cable. It operates at 2S0V rms for IEC (International Electrotechnical Commission) 60602-1 CSA (Canadian Standards Association), 600V rms under IEC 60950-1 CSA, and 846V peak for VDE (Verband der Elektrotechnik, Elektronik und Informationstechnik) certification. IEC 60601-1 medical-safety approvals are pending.rnThe device operates from the 5V USB power supplyrnor 3.3V power and provides isolated control of the pullup resistor, allowing the peripheral to control connection timing.