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+// find closed-loop voltage gain, bandwidth and output voltage

+// Electronic Principles

+// By Albert Malvino , David Bates

+// Seventh Edition

+// The McGraw-Hill Companies

+// Example 18-7, page 678

+

+clear; clc; close;

+

+// Given data

+R1=1.5*10^3;// in ohms from the given figure

+Rf=75*10^3;// in ohms from the given figure

+Vin=10^-2;// input voltage in mVpp

+f1=10^3;// frequency in hertz

+f2=10^6;// frequency in hertz

+funity=10^6;// unity gain frequency in hertz

+

+// Calculations

+Avcl=-Rf/R1;// closed loop voltage gain

+f2cl=funity/-Avcl;// closed-loop bandwidth

+Vout1=Avcl*Vin;// output voltage at 10^3 Hertz

+Vout2=-Vin;// output voltage at 10^6 Hertz as it is unity gain frequency in hertz

+disp(Avcl,"closed loop voltage gain=")

+disp("Hertz",f2cl,"closed loop bandwidth=")

+disp("Volts",Vout1,"output voltage 1=")

+disp("Volts",Vout2,"output voltage 2=")

+

+// Result

+// Closed loop voltage gain is -50

+// Closed loop bandwidth is 20 Khertz

+// Output voltage is -500 mVpp at 1 KHertz

+// Output voltage is -10 mVpp at 1000 KHertz
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