I'm working on 8-LEAD ECG signal acquisiiton for which I need an 8-channel analog mux to save the resources (both cost and space). But the issue is that the ECG signals are very weak (max of 1mV). So I need an analog mux that does the minimum (or no) distortion for such low voltages.
I have searched many analog muxes from analog devices (and some others as well), but I don't know which parameter of the specs will give information about the distortion or about handling such low voltages perfectly.
Input from the community will be highly appreciated.
M. Hammad Tariq