GATE EC 2014 Set 1 — Question 23

NAT+1 / -0MediumActive Filters (Sallen-Key)Op-Amp CircuitsAnalog Circuits

Analog Circuits → Op-Amp Circuits → Active Filters (Sallen-Key)

Last updated 5 September 2026

Question

R_2

H(s) = -\frac{Z_f}{Z_{in}} = -\frac{R_2 || \frac{1}{sC}}{R_1} = -\frac{R_2}{R_1(1 + sR_2C)}

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H(s) = -\frac{Z_f}{Z_{in}} = -\frac{R_2 || \frac{1}{sC}}{R_1} = -\frac{R_2}{R_1(1 + sR_2C)}

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