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+// Example 16.4

+format('v',6)

+clc;

+clear;

+close;

+// given data

+A=100;

+R_B= 39*10^3;// in Ω

+r_in= 2*10^6;// in Ω

+r_out= 75;// in Ω

+Vin_off= 2*10^-3;// in V

+I_B1= 90*10^-9;// in A

+I_in_off= 20*10^-9;// in A

+// The closed loop voltage gain 

+B=1;// unit less

+// The closed-loop input impedance

+r_in_CL= (1+A*B)*r_in;// in Ω

+r_in_CL= r_in_CL*10^-6;// in Mohm

+disp(B,"The closed loop voltage gain is : ")

+disp(r_in_CL,"The closed-loop input impedance in MΩ is : ")

+A=100000;

+// The closed-loop output impedance

+r_out_CL= r_out/A;// in Ω

+disp(r_out_CL,"The closed-loop output impedance in Ω is : ")

+//Let V= V1-V2 = Vin_off+I_B1*R_B

+V= Vin_off+I_B1*R_B;// in A

+// The output offset voltage 

+Voo_CL= A*V/A;// in V

+Voo_CL= Voo_CL*10^3;// in mV

+disp(Voo_CL,"The output offset voltage in mV is : ")