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+//clear//
+//Example5.9:"Typical offset voltage""
+//Page 157
+//figure 5.9
+clear;
+clc;
+Rf=10000;       // in Ohm
+Ri=1000;        //in ohm
+Roff=0;         //in ohm
+Anoise=1+Rf/Ri;
+disp(Anoise,"Anoise");
+Vos=0.5*10^-3;      //in Volt
+Ios=10*10^-9;       //in Amp
+Ib=800*10^-9;       //in Amp
+Vout=(Vos*Anoise)+(Ib*Roff*Anoise+Ib*Rf);
+disp("V",Vout,"Vout");
+
+Roff=Ri*Rf/(Rf+Ri);
+Vout=(Vos*Anoise)+(Ios*Rf);
+disp("V",Vout,"Vout_offset");
+//result