In order for a transistor output stage that is used with an IC comparator to work properly,an open collector must be connected to
A) an external resistor and supply voltage.
B) a transformer coupled load.
C) a coupling capacitor.
D) ground.

Question

Quizplus · Accepted Answer

An open collector output stage requires an external pull-up resistor to work properly. This resistor connects the output to the supply voltage and provides the necessary current for the load. Connecting to a transformer or coupling capacitor would not be appropriate for this type of output stage. Ground is not the correct choice because the transistor is designed to sink current, not source it.

In Order for a Transistor Output Stage That Is Used