Description:
Each OPI125, OPI126, OPI127, OPI127-032 and OPI128 consists of an optically coupled isolator with a gallium arsenide infrared emitting diode coupled to a monolithic integrated circuit. This circuit incorporates a photodiode, a linear amplifier and a Schmitt trigger on a single silicon chip. For maximum long-term stability, both the diode and the Photologic® sensor are hermetically sealed in separate packages and then mounted in a high dielectric plastic housing.
These devices feature TTL/LSTTL compatible logic level output that can drive up to 8 TTL loads directly without additional circuitry. Also featured are medium-speed data rates to 250 KBit/s, with typical rise and fall times of 70 nanoseconds. *UL recognition is for 15KVDC to 100° C.

FEATUREs:
• Four output options
• 15 kV input-to-output isolation voltage
• Direct TTL/STTL interface
• High noise immunity
• Data rates to 250 KBit/s
• Hermetically sealed
• TX-TXV process available
• UL File No. E 58730*

APPLICATIONs:
• High voltage isolation between input and output
• Electrical isolation in dirty environments
• Industrial equipment
• Medical equipment
• Office equipment