Description

The FOD2200 is an optically coupled logic gate that combine an AlGaAs LED and an integrated high gain photo detector. The detector has a three state output stage and has a detector threshold with hysteresis. The three state output eliminates the need for a pullup resistor and allows for direct drive of data busses. The hysteresis provides differential mode noise immunity and eliminates the potential for output signal chatter.

Features

■ 1kV/µs minimum common mode rejection

■ Compatible with LSTTL, TTL, and CMOS logic

■ Wide VCC range (4.5V to 20V)

■ 2.5Mbd guaranteed over temperature

■ Low input current (1.6mA)

■ Three state output (no pullup resistor required)

■ Guaranteed performance from 0°C to 85°C

■ Hysteresis

■ Safety approvals pending – UL, CSA, VDE

■ VISO = 5kVRMS

Applications

■ Isolation of high speed logic systems

■ Computer peripheral interfaces

■ Microprocessor system interfaces

■ Ground loop elimination

■ Pulse transformer replacement

■ Isolated bus driver

■ High speed line receiver