onsemi FOD8160 Logic Gate Optocouplers deliver a 3.3V/5V high-speed optocoupler with open collector output, which supports isolated communications to allow digital signals to communicate between systems without conducting ground loops or hazardous voltages. onsemi FOD8160 Logic Gate Optocouplers utilize proprietary Optoplanar® coplanar packaging technology and optimized IC design to achieve high noise immunity, characterized by high common mode rejection specifications.