Focuses on the transistor as a current-controlled device , emphasizing its role in regulating power from a supply rather than generating it .
For those interested in the math behind design, Chapter 2 of the Systematic Design of Analog CMOS Circuits covers modern modeling techniques .
The document you are likely looking for is by Charles A. Pike . Originally published in 1968 as part of a multi-volume training series, it remains a classic resource for understanding the transition from semiconductor physics to practical circuit application . Key Resource Details