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+clear;
+clc;
+//Example 13.10
+Iref=100;
+Kn=80;
+Kp=40;
+//W/L=x
+x=25;
+//lambda=y
+y=0.02;
+Id=Iref/2;
+gm1=2*sqrt(Kp*x*Id/2);
+printf('\ntransconductance gm1=gm8=%.3f microA/V\n',gm1)
+gm6=2*sqrt(Kn*x*Id/2);
+printf('\ntransconductance=%.3f microA/V\n',gm6)
+ro1=1/(y*Id);
+ro8=ro1;
+ro6=ro1;
+ro10=ro1;
+printf('\noutput resistance ro1=ro8=ro6=ro10=%.3f MOhm\n',ro1)
+Id4=Iref;
+ro4=1/(y*Id4);
+printf('\nro4=%.3f MOhm\n',ro4)
+Ro8=gm1*ro8*ro10;
+printf('\ncomposite output resistances =%.2f MOhm\n',Ro8)
+Ro6=gm6*ro6*ro4*ro1/(ro4+ro1);
+printf('\ncomposite output resistances=%.2f MOhm\n',Ro6)
+Ad=gm1*Ro6*Ro8/(Ro6+Ro8);
+printf('\ndifferential voltage gain=%.2f\n',Ad)