/diy/ - Do It Yourself

>>2705920
I have a spreadsheet full of analogue switch ICs, pic related. The "seperate A/D" refers to whether they have seperate analogue and digital power rails, the rest should be self explanatory. I filtered them for having "N throws" = 2 already, whether two switches is counted as seperate switches or poles of the same switch is dependant on if they can be changed independently or not. I recommend the DG4xx and DG6xx series. They seem have the best effective open-to-closed impedance ratio so will minimise crosstalk (this is the spec the entire table is sorted by). Though for this case you can probably get away with bog-standard CD4053, that difference matters more for a sample+hold circuit.

What kind of analogue source is it, optical? Potentiometer? An oscillator of some kind?