Hi
I have a voltage divider circuit consisting of a 20K at the top and 10K to ground. Centre pin to PIC A/D. The pic is used to measure high to low transitions of a square wave pulse. So the A/D is not used. I am sure my signal is being loaded.
Can i add a voltage follower after the voltage divider, using a opamp? Or is there a transistor cobfiguration that i can use to do the same? I am just trying to eliminate the problem.
Thanks
I have a voltage divider circuit consisting of a 20K at the top and 10K to ground. Centre pin to PIC A/D. The pic is used to measure high to low transitions of a square wave pulse. So the A/D is not used. I am sure my signal is being loaded.
Can i add a voltage follower after the voltage divider, using a opamp? Or is there a transistor cobfiguration that i can use to do the same? I am just trying to eliminate the problem.
Thanks