Comfortable in PLC, industrial fieldbus, servo control, inverter, factory automation, and test and measurement applications, the FOD8012 full-duplex, bi-directional logic-gate optocoupler promises high noise immunity as well as reliable optical isolation. The device supports isolated digital communications between systems without conducting ground loops or hazardous voltages and features a 0.4-mm minimum optical isolation gap. It specifies a switching speed up to 15 Mb/s and a CMR of 20 kV/µs minimum. Price is $3.08 each/1,000. FAIRCHILD SEMICONDUCTOR, San Jose, CA. (800) 341-0392.