Hello,
First I was using CDx4HCT4053, S0 S1 pins were directly connected to microcontroller which outputs 3.3V and 0V but the problem was the Ron was exceeding more than 200ohm, so I switched to TS12A12511 as it has lower Ron.
Now I'm using TS12A12511 with dual supply(5V) and the IN pin is directly controlled by microcontroller(3.3V). GPIO pins outputs either 3.3V or 0V to the IN pin for switching from NC to NO but there was no proper switching(In datasheet min voltage is 2.4V). When I read one of your application notes "Preventing Excess Current Consumptionon Analog Switches", I supplied 5V(single supply) and 0V externally to the IN pin to check and there was proper switching but Ron keeps changing upto 400 ohm.
How can or what are the possibilities that the Ron keeps changing, is it due to current?
And I need the Ron to be constant for my calculation as I'm using it with the voltage divider