Active low pass filters §24.2

[@MetehanSaman]

Thank you, you have saved my day.

[@kabandajamir9844]

So nice

[@matvarghese5606]

Could you explain why gain = -Zf/Zi?

[@gasstationwithoutpumps]

See the videos on negative-feedback amplifiers:kzbin.info/www/bejne/bYHJgpilj7Bmg7M and kzbin.info/www/bejne/nXabl4Rrl5uHqac

[@amaanmd8056]

thanks a lot

[@phillipneal8194]

Why are all the exmples on youtube less than 1 Mhz Fc ?

[@gasstationwithoutpumps]

Because it is easier to do the testing on the Analog Discovery 2 at audio frequencies-the breadboard and wiring act as additional passive filters at higher frequencies, and I did not want students to have to make more complicated models to account for them.

[@phillipneal8194]

@@gasstationwithoutpumps Can you reccomend a youtube video or site that works with op-amps at HF (high frequency) ranges ? Especially ones that actually discuss how to choose the op-amp ?

[@gasstationwithoutpumps]

@@phillipneal8194 I did not make a video about it, but Sections 23.4 and 24.3 of my textbook talk about compensating amplifiers for stability at high frequency. You might find a little useful info in kzbin.info/www/bejne/gIKunouBqKiXarM