The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
4N45/4N46 High Gain Darlington Output Optocouplers
Data Sheet
Description The 4N45/46 optocouplers contain a GaAsP light emitting diode optically coupled to a high gain photodetector IC.
The excellent performance over temperature results from the inclusion of an integrated emitter-base bypass resistor which shunts photodiode and first stage leakage currents as well as bleeding off excess base drive to ground. External access to the second stage base provides the capability for better noise rejection than a conventional photodarlington detector. An external resistor or capacitor at the base can be added to make a gain-bandwidth or input current threshold adjustment. The base lead can also be used for feedback.
4N45 Datasheet
