The FOD8012 logic gate optocoupler from Fairchild Semiconductor is a full duplex, bi-directional logic gate optocoupler with high noise immunity as well as optical isolation. This bi-directional optocoupler is targeted for industrial fieldbus communications, programmable logic control, and servo control as well as inverter, factory automation, process control and test and measurement applications.
The FOD8012 transmits high-speed data over the communication fieldbus without the risk of damaging sensitive controllers, ADCs or sensors. It was designed to offer a higher level of isolation and EMI immunity than the current solutions that use two single-channel optocouplers or other technology, like magnetic or capacitive coupling.
The FOD8012 supports isolated communications of digital signals between systems without conducting ground loops or hazardous voltages. Unlike devices that provide less than 0.1mm optical isolation gap, the FOD8012 features a 0.4mm (minimum) optical isolation gap for reliable isolation. The device also features a fast switching speed of up to 15Mbit/sec, and uses Fairchild’s proprietary Optoplanar packaging technology and optimized IC design to achieve high common mode rejection (CMR) of 20kV/µs minimum, allowing the device to operate in noisy industrial environments.
The new high-speed logic gate optocoupler is highly integrated with two optically coupled channels arranged in a bi-directional configuration, and housed in a compact 8-pin small outline package. Each optocoupler channel consists of a high-speed AIGaAs LED, driven by a CMOS buffer IC coupled to a CMOS detector IC.
The FOD8012 offers an extended industrial temperature range of -40 to +110ºC and a 3.3V or 5V supply voltage to facilitate logic level translation. The device’s high isolation voltage is certified by UL1577 and IEC60747-5-2 for increased reliability.
The FOD8012 offer best-in-class noise immunity resulting from its proprietary Optoplanar coplanar packaging technology. The Optoplanar technology ensures safe insulation thickness of more than 0.4 millimeters in attaining reliable high voltage isolation, certified by UL1577 and IEC60747-5-2 standards.
Samples available now. Price (each, 1k pcs.): $3.08. Delivery: 8-10 weeks.
To contact Fairchild Semiconductor about this product, visit http://www.fairchildsemi.com/cf/sales_contacts/.