May 23, 2008 #1 J jony130 Full Member level 3 Joined Sep 6, 2006 Messages 168 Helped 51 Reputation 102 Reaction score 44 Trophy points 1,308 Activity points 2,326 Can anyone show me, how to calculate the gain of this amplifier
May 23, 2008 #2 L laktronics Banned Joined Jan 6, 2007 Messages 942 Helped 176 Reputation 352 Reaction score 18 Trophy points 1,298 Activity points 0 Hi, The gain can be calculated as follows: -Vi(R2/R1) + Vo*k(1+R2/R1) = Vo where R2/R1 = 2k/1k = 2 and k = (R4||R5) / [R3 + (R4||R5)] = 0.312 approx. So, -2Vi + 3*0.312Vo = Vo Vo(1-0.936) = -2Vi Gain Vo/Vi = -2/0.064 = - 31.25 Regards, Laktronics
Hi, The gain can be calculated as follows: -Vi(R2/R1) + Vo*k(1+R2/R1) = Vo where R2/R1 = 2k/1k = 2 and k = (R4||R5) / [R3 + (R4||R5)] = 0.312 approx. So, -2Vi + 3*0.312Vo = Vo Vo(1-0.936) = -2Vi Gain Vo/Vi = -2/0.064 = - 31.25 Regards, Laktronics
May 23, 2008 #3 J jony130 Full Member level 3 Joined Sep 6, 2006 Messages 168 Helped 51 Reputation 102 Reaction score 44 Trophy points 1,308 Activity points 2,326 Thanks you