I am trying to use the circuit below to switch between multiple resistors using a multiplexer. Initially I had different values of resistors attached to every channel, but since I was getting very strange and HUGE!! results, I grounded all the channels except the first channel and just connected a 120 ohm resistor. I am measuring resistor readings of magnitudes of Mega ohms and I have no idea how such huge values of resistance are showing up at all. I am not sure what I am doing wrong and I really really appreciate any help.
