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So wat kind of opamp should i use for a fast response. should i use a pull down resistor.
They are specifically designed to be used as comparators.why wat is special about LM393/399.
i am sorry i did connect to pin 11. but lm324 is not working as a comparitor
i am sorry i did connect to pin 11. but lm324 is not working as a comparitor
I am using a lm324 voltage compatitor for a project of mine.
The output of the comparitor is to be connected to a microcontroller.
Is it connected like this:
Note the non-ideal behavior. It works with one input at ground, but it is slow and it has some offset. The common-mode range includes ground at the bottom end, but only goes to about +3V when operated on single 5V supply.
its the same except for the ground to which i connected a reference voltage
What is the reference voltage? What is the supply voltage?
i am interfacing using a comparitor and i am using atmel 89C51.
It does not have a comapritor.