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A cutoff frequency is a frequency boundary in a system's frequency response at which the power level is greater or less than a given fixed value.
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Getting the cutoff frequency
I want to know the cut off frequency of this circuit, given that the GBW is constant (1.9MHz) and R1=8.2kOhm and R2=114.6KOhm. I did 19e6/2*\$\pi\$*R2 (since it doesn't have a capacitor) but my calcul …