I'd like to use a MUX to extend the number of inputs for AD7641. I'm considering AD8180 and MAX393.
Do you think adding one of these will reduce the effective ADC resolution?
Are there other downsides? What should I look for when choosing a MUX? I think AD8180 is really fast and pretty low noise but offset and drift are higher then the amplifier I plan to use as ADC driver (AD8139).