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Photologic® Optically Coupled Isolator
OPI125, OPI126, OPI127, OPI128
Features:
Four output op ons
Data rates to 250 KBit/s
15 kV input‐to‐output isola on voltage Herme cally sealed
Direct TTL/STTL interface
TX‐TXV process available
High noise immunity
UL File No. E 58730*
Descrip on:
Each OPI125, OPI126, OPI127 and OPI128 consists of an op cally coupled isolator with a gallium arsenide infrared emi ng
diode coupled to a monolithic integrated circuit. This circuit incorporates a photodiode, a linear amplifier and a Schmi
trigger on a single silicon chip. For maximum long‐term stability, both the diode and the Photologic® sensor are
herme cally sealed in separate packages and then mounted in a high dielectric plas c housing.