Common Mode Gain and Differential Gain (Amplifiers #5) 

one of the best EE teachers out there!

Excellent video. You are a good teacher. do you mind showing a lab experiment on CMRR and Differential using 50Hz sine wave please?

Also, since you have already covered two types of gain - inherent gain and circuit derived gain, which gain are you talking about? So, if I have a non-inverting amplifier *configuration* with gain of 2, does this mean the differential gain = 2? I'm going to assume here that the differential gain you are talking about is the inherent (very large) gain of the op amp. Also I am going to assume that the non-inverting amplifier is *not* a differential amplifier since it technically only has a single voltage input- the other input being derived from the feedback loop from the output.

There are still ten hidden videos? Are you unveiling the rest soon? Thanks, these are great.

lmao ok, so we are just going to assume that a negative half of the differential voltage magically divides itself, flips polarity, and goes in the input? say you have a two wires coming out of a microphone, what does the practical connection to the opamp inputs look like?

To be clear- my understanding is that ALL operational amplifiers are differential amplifiers. What you talk about of "differential" amplifier is actually a "differential amplifier *configuration* "?

Thanks again...i am first..