OPTEK OPI150

Each OPI150 and OPI153 is an optically coupled isolator that contains an infrared emitting diode and a NPN silicon phototransistor (OPI150) or photodarlington (OPI153), each sealed in an individual hermetically sealed package. The diode and phototransistor or diode and photodarlington are then optically coupled by means of a light pipe and mounted in a high dielectric plastic housing. These devices are designed for applications that require very high isolation between input and output.

The OPI155 is a high-speed optical coupled isolator that contains a high speed monolithic photo-IC comprised of a photodiode and a DC amplifier that drives an open collector output Schottky transistor. It is optically coupled by means of an internal light pipe. The LED and sensor are both in separate hermetically sealed packages that are then mounted in a high dielectric plastic housing. This device is designed for applications that require high speed and high voltage isolation between the input and output.

• 50 kV electrical isolation
• Choice of phototransistor or photodarlington output
• High speed 5 Mbit/sec (NRZ) OPI155 only
• Hermetically sealed LED and photosensor
• Base contact lead for conventional transistor biasing

• Requiring high voltage isolation between input and output
• Electrical isolation in dirty environments
• Industrial equipment
• Medical equipment
• Office equipment