For precise measurement of of very low voltages I would recommend using some external ADC chip with very precise voltage reference. For example LTC2487 is very good ADC with i2c interface and up to 256x programmable gain. Combined with some precise voltage reference like LTC1790 it can give you the...

Hi to all, before I am sart I should apologize if my question is trivial since I did not find a similar question, I decided to specifically ask mine. The situation is following: I have a microscopic membrane in my lab, this piece which we call it NMS has a variation of voltage caused by its operatio...