FODM8071: 3.3V/5V Logic Gate Output Optocoupler with High Noise Immunity

The FODM8071 is a 3.3V/5V high-speed logic gate output Optocoupler, which supports isolated communications allowing digital signals to communicate between systems without conducting ground loops or hazardous voltages. It utilizes Fairchild’s proprietary coplanar packaging technology, Optoplanar®, and optimized IC design to achieve high noise immunity, characterized by high common mode rejection specifications. This high-speed logic gate output optocoupler, housed in a compact 5-Pin Mini-Flat package, consists of a highspeed AlGaAs LED at the input coupled to a CMOS detector IC at the output. The detector IC comprises an integrated photodiode, a high-speed transimpedance amplifier and a voltage comparator with an output driver. The CMOS technology coupled with a high efficiency LED achieves low power consumption as well as very high speed (60ns propagation delay, 20ns pulse width distortion).

Features

• High Noise Immunity characterized by common mode transient immunity (CMTi) - 20kV/µs Minimum CMTi
• High Speed – 20Mbit/sec Date Rate (NRZ)– 55ns max. Propagation Delay – 20ns max. Pulse Width Distortion– 30ns max. Propagation Delay Skew
• 3.3V and 5V CMOS compatibility
• Specifications guaranteed over 3V to 5.5V supply voltage and -40 to +110°C temperature range
• Safety and regulatory approvals – UL1577, 3750 VACRMS for 1 min.– IEC60747-5-2 (pending approval)