16 analog signals on 8 analoginputpins

It is just like two inputs one output 16 times.

but thats what i need, only the 8-bit version

i just simply need to switch from 2 rows of analog inputs (potmeters)

however i just got another idea what if just simple switch the Vcc of the pots in stead of all the analog signals.
i would use 2 digital Outputs to do so. would that work?