Common Source Amplifier MOSFET (LTspice)
In this video, I use LTspice to simulate a common source amplifier. Using an NMOS MOSFET, I explain the key equations needed to understand and set up appropriate resistance values for a desired gain. This is not a small signal model demonstration, however, the equations used are directly derived from a small signal model. This is a very simple example, I use a MOSFET that has no lambda value, therefore I assume that our r_o is infinite. This greatly simplifies our calculation for what R_D needs to be. Keep this in mind as you watch the video.
00:00 CS Amplifier Intro
00:48 LTspice Setup
03:33 Determining Unknowns
04:24 Finishing the Circuit