h5p3:
Continuing with our analysis of the source follower, we now want to examine its small-signal behavior.
We have exactly the same situation as we had in H5P2 (but the numbers will be different.)
Derive an algebraic expression for the incremental output voltage vout in terms of parameters K, VT, and RS, the input bias voltage VIN, and the incremental input voltage vin.
Hint: Remember that you computed the total output voltage vOUT in H5P2. Also remember that vout=vin⋅∂vOUT∂vIN|vIN=VIN.
So, in the space provided below, write your algebraic expression for vout: