NEED help from experts for designing universal data logger

sir ,
i dont want complete design just an idea about analog switches and their switching capabilities whether they can handle very low voltages. I am not earning anything right now.I mentioned that i am stucked from last 46 days. And getting helpless i started this topic. I have to introduce my design to industry first.

I didn't hide anything. many of forum user may be making money of your inputs . Sorry once again i was unaware of this .

Thanks for input ,i will post this in collaboration.