Guys, for my project work I need to make an EEG amplifier. Hope you all know what an EEG signal is (Electro Encephalogram), which for my greatest sorrow, is an extrmely small signal, something around 10 to 50 microvolts, which is very small compared to the noise signals that I will encounter. By amplifier I mean any differential amplifier which can amplify such a small signal at the same time reject the common noise signal. I expect an output of about 3 - 4.5 V. Can you guys suggest something. Thankyou. ???