I will give this a try.
Analog is generally speaking founded on sw cap technologies or on continuous time
amplifier surrounded by gain and offset setting elements. So for example a PGA type
element consists of a gain block amd muxes controlling feedback R's. The gain
block may have its bias set via a muxed R, which in term controls GBW, slew rate,
etc.. Offsets, by this I mean common mode offsetting, done by another ladder terminated
in a reference of some kind. Ratios of R's or absolute values are meaningful depending
In the case of sw cap technologies, you are adding capacitors and clocking as a means of control.
Classic case is simple switch feeding a cap, and Z becomes a f(F,C), see -
so we add clock rate to the control toolbox. And substitute C for R in some cases.