Can someone please explain why the LM339 comparator's output doesn't go high, even when the positive input is more than the negative input.
No matter what i try, the output goes only to a few picofarads. when the negative input is higher than the positive input, then the comparator works fine and the output goes to - V saturation. Can someone shed some light on this?
Can someone please explain why the LM339 comparator's output doesn't go high, even when the positive input is more than the negative input.
No matter what i try, the output goes only to a few picofarads. when the negative input is higher than the positive input, then the comparator works fine and the output goes to - V saturation. Can someone shed some light on this?
I tried adding the resistor but it still doesn't go high. Where exactly do I add the resistor? Between the comparator and the positive input? or between the comparator and the positive supply? I tried both but still the output stays at a few picovolts..