1 files changed, 20 insertions, 0 deletions
diff --git a/374/CH8/EX8.4/84.sci b/374/CH8/EX8.4/84.sci
new file mode 100644
index 000000000..3e6205f9d
--- /dev/null
+++ b/374/CH8/EX8.4/84.sci
@@ -0,0 +1,20 @@
+//chapter 8 example 4//
+clc
+clear
+//effective input resistance =Ra,maximum band width=B,total capacitance=Ct,mean thermal energy noise current=ith,open loop gain =A,total effective load resistance=Rtl//
+Ra=5*(10^6);//in ohms//
+Rb=5*(10^6);//in ohms//
+Rtl=(Ra*Rb)/(Ra+Rb);//total effective load resistance//
+Ct=5*(10^-12);//in farads//
+B=1/(2*%pi*Rtl*Ct);
+printf("\n a) maximum bandwidth=%f Hz\n",B)
+T=300;//in kelvin//
+Kb=1.38*(10^-23);
+ith=((4*Kb*T)/Rtl)*(10^27);
+printf("\n b) mean thermal energy noise current per unit band width=%f *(10^-27) A2Hz-1\n",ith)
+A=400;//open loop gain//
+Rf=(10^5);//in ohms//
+B1=A/(2*%pi*Rf*Ct);
+printf("\n C) a) maximum bandwidth without eualization for the transimpedance configuration=%f Hz\n",B1)
+ith=((4*Kb*T)/Rf)*(10^25);
+printf("\n C) b) mean square thermal noise current=%f*(10^-25) Hz\n",ith)
+\ No newline at end of file