Everyone knows that the perfect capacitor to decouple the power rails around ICs is a 100 nF ceramic capacitor or equivalent, ...

You can work with a part for many decades, and still learn something new about it. At least we can, and we don’t mind ...

In Figure 1, above, we include a relatively simple model of a real capacitor to illustrate its nature. It consists of four impedances, connected as shown. The impedance on the left is the ESR, the ...