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+clear;
+clc;
+//Example 11.8
+CMRRdB=90;//dB
+CMRR=3.16*10^4;
+b=100;
+Vt=0.026;
+Iq=0.8;
+Ro=(2*CMRR-1)*Vt*b/((1+b)*Iq);
+Ro=Ro*10^-3;//Mohm
+disp(Ro,"output resistance (MOhm)")