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Instability of capacitive loaded Op. Amps.: Explanation and demonstration by simulation 

Sam Ben-Yaakov
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7 сен 2024

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Комментарии : 22   
@electronic7979
@electronic7979 4 года назад
Very helpful information video. I like it
@sambenyaakov
@sambenyaakov 4 года назад
Thanks for comment.
@tseckwr3783
@tseckwr3783 4 года назад
Professor Sam ... thanks for another informative video....
@sambenyaakov
@sambenyaakov 4 года назад
Thanks
@justinn771
@justinn771 4 года назад
Sir. Thank you always for your splendid lectures. Please stay healthy and keep your safety against COVID19.
@sambenyaakov
@sambenyaakov 4 года назад
Thank. You too, keep healthy.
@movax20h
@movax20h 4 года назад
Oh boy. What a treat.
@sambenyaakov
@sambenyaakov 4 года назад
Thanks. Love you choice of words😊
@GeorgeDjabarov
@GeorgeDjabarov 4 года назад
Nice video Sam, thank you. Btw the two video links that you shared are pointing to the same video.
@sambenyaakov
@sambenyaakov 4 года назад
Thnks for comment and for noticing the typo, I have replaced lnk in web page.
@ats89117
@ats89117 4 года назад
Great video, but it leaves you wondering which company has the right spice model. The odds on bet would be on Linear Technologies, since they built both the opamp and the simulation model for it, but you can never be sure unless you breadboard it...
@sambenyaakov
@sambenyaakov 4 года назад
I guess that nether are very accurate😊
@Xeenych
@Xeenych 3 года назад
Should't the resistor R4(PSPICE model)/R8(LTSPICE) be enclosed in feedback loop?
@sambenyaakov
@sambenyaakov 3 года назад
HI, You seem to have missed the point. R8 keeps the cap out of loop so it will not add phase lag.
@Xeenych
@Xeenych 3 года назад
@@sambenyaakov The common way of compensation, I know of, is the in-the-loop compensation. When the RC is in the feedback loop. It is easier to predict the output of the amplifier, cuase the RC is in the loop and you can just forget about it because of high Aol. Here is the apnnot from Adi www.analog.com/en/analog-dialogue/articles/techniques-to-avoid-instability-capacitive-loading.html
@Xeenych
@Xeenych 3 года назад
@@sambenyaakov BTW Is ther ea way I can contact you? I have a proposition for one of the next videos. It is a riddle.
@sambenyaakov
@sambenyaakov 3 года назад
@@XeenychYou have sent me a link to an article that you apparently did not read! !! See in that document: Out-of-the-Loop Compensation Q: Is there a simpler compensation scheme that uses fewer components? A: Yes, the easiest way is to use a single external resistor in series with the output. This method is effective but costly in terms of performance (Figure 8).
@sambenyaakov
@sambenyaakov 3 года назад
@@Xeenych You can write to sby@bgu.ac.il
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