Thanks a lot for this video. I'm currently in flight school, and I'm no electrician. Neither are our instructors. Long story short, there's a phenomenon in one of the sensor systems we use that is attributed to "AC Coupling". While we're taught to expect is, recognize it, and use it to our advantage, they can't really explain what it is. I need to know the "why/how" things work to really learn things and apply them, and this video does exactly that. Thank you.

What do you think about the fact that if the 160nF decoupling capacitors leads are too big/long, the cap could become inductive at 333MHz and not pass the 1ns rise time pulse with high fidelity. It will start acting as a high impedance path. Or in other words, the square wave would have a higher rise time due to the parasitic inductance? Would my assessment be accurate?

I am trying to feed the AC-coupled signal into the input of an op-amp. The op-amp has a +/-5 V Vdd/Vcc bias. The input has a 0-5v bias.Since the input of the op-amp does not draw any current, how do I accommodate the requirement to draw the signal down to Vdd? Presumably after the cap stage? The frequency range is audio, say 10-10000Hz. Also keep in mind that the supply signal can only supply 35mA. Thanks.

I assume the signal can be biased with an offset to any voltage after it has passed through the capacitor, correct?

5:28 I thought frequency was one over the period 1/p, not 1/(pi*p).