Page 61 - The Art and Science of Analog Circuit Design
P. 61

Thoughts on Becoming and Being an Analog Circuit Designer


                            That sort of thing helps weed out the sick, the feeble-minded, and the
                          history majors. Then we begin analog "basic training," which involves
                          learning the following song for drill practice and considerable healthful
                          marching and shouting.
                          Analog Boot Camp Drill Routine

                          by G. Kovacs
                          (The words are first barked out by the professor, then shouted back by
                             students marching in formation.)
                          Analog circuits sure are fine,
                          Just can't get 'em off my mind.

                          Digital circuits ain't my kind,
                          Zeros and ones for simple minds.


                          I guess NAND gates aren't all that bad,
                          'Cause I need them for circuit CAD.

                          One, two, three, four,
                          Gain and bandwidth, we want more.


                          Five, six, seven, eight,
                          We don't want to oscillate.


                          Widlar, Wilson, Brokaw too,
                          They've got circuits, how 'bout you?

                          (repeat)

                             I also ask a few random questions and have been known to order a few
                          push-ups here and there if, for example, a student cannot correctly distin-
                          guish between the Miller and Budweiser Effects. Now the students are
                          ready for their plunge into the world of analog ...
                             At this point, they are taught theory in one class and hands-on aspects
                          in another. Essentially, the idea is to progress from the basic idea of an
                          operational amplifier (op amp) through the necessary circuit building
                          blocks that are required to design one. Finally, we reach the point where
                          the students know enough to do that, and then we get into feedback and
                          stability. Meanwhile, in the laboratory part of the class, the students are
                          learning how to destroy most of the circuits covered in lecture. It is in the
                          lab that we teach them the all-important "smoke principle" of solid-state
                          devices. This is the formerly very closely guarded industrial secret that
                          each discrete or integrated circuit is manufactured with a certain amount


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