OPI125/6/7/8 Series optical isolators consist of a GaAs infrared LED coupled to a photodiode, a linear amplifier and a Schmitt trigger integrated on a single chip.
The diode and sensor are hermetically sealed in separate packages and mounted within a high dielectric plastic housing. The isolators provide a direct TTL/LSTTL interface with four output options totem pole, open collector, inverse totem pole, or inverse open collector. They are capable of driving up to eight TTL loads directly, without additional circuitry, at medium-speed data rates up to 250 kBaud. The isolators are rated for 15-kV isolation and carry a power dissipation rating of 200 mW. The output photosensors operate with a 20-mA supply current and a maximum low-level output voltage of 0.40 V. Typical rise and fall times for all the devices is 70 nsec, with typical low-high and high-low propagation delays of 5 μsec.
1645 Wallace Dr., Carrollton, TX 75006,