Discussion in 'Homework Help' started by omerysmi, Nov 13, 2014.
Vi > 4v => Vo= -5v
Vi < 4v => Vo = 5v
Am I right?
Many commercially available comparators come with open collector output. You need a pullup resistor on the output pin.
Usually the output stage is referenced to ground. Hence the output voltage is 0-5V.
You are correct for an ideal comparator. The output voltage may not reach the rails for actual devices.
of course..this is an ideal comparator