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FOD0721 Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FOD0721 Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 12 page ©2004 Fairchild Semiconductor Corporation www.fairchildsemi.com FOD0721, FOD0720, FOD0710 Rev. 1.0.9 December 2010 FOD0721, FOD0720, FOD0710 Features ■ 20kV/µs minimum CMR ■ 40ns max. propagation delay ■ Data Rate, Non-Return Zero Coding – 25Mbit/sec (FOD0721 and FOD0720) – 12.5Mbit/sec (FOD0710) ■ Pulse Width Distortion – 6ns (FOD0721) – 8ns (FOD0720 and FOD0710) ■ +5V CMOS compatibility ■ Extended industrial temperate range – -40 to 100°C temperature range ■ Safety and regulatory approvals – UL1577, 3750 VACrms for 1 min. (File #E90700, Volume 2) – IEC60747-5-2 pending approval Applications ■ Industrial fieldbus communications – Profibus, DeviceNet, CAN, RS485 ■ Programmable logic control ■ Isolated data acquisition system Description The FOD0721/0720/0710 family utilizes Fairchild’s ® and optimized IC design to guarantee minimum 20kV/µs Common Mode Noise Rejection (CMR) rating. These high-speed logic gate optocouplers consist of a high-speed AlGaAs LED driven by a CMOS IC coupled to a CMOS detector IC, comprising an integrated photo- diode, a high-speed transimpedance amplifier and a voltage comparator with an output driver. The CMOS technology coupled to the high efficiency of the LED achieves low power consumption as well as very high speed (40ns propagation delay, 6ns pulse width distortion). These devices are available in a compact 8-pin small outline package. Functional Schematic 1 2 3 4 5 6 7 8 VDD2 VI H L VO H L LED OFF ON NC VO GND2 Truth Table *: Pin 3 must be left unconnected VDD1 VI * GND1 p roprietary coplanar packaging technology, Optoplanar, High CMR, 25Mbit/sec Logic Gate Optocoupler |
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