Fast method for calculating voltage gain

Status
Not open for further replies.

mhjedaboard

Newbie level 4
Joined
Sep 23, 2011
Messages
6
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Iran-Teharan
Activity points
1,322
salaam Every body,



is there a faster method for gain(Av0) derivation than using KVL-KCL ? (using KVL-KCL is too slow and complex way for a multistage amplifier.)


I have seen a method used for calculating voltage gain but I don't remember it and it was something like:


output resistance/imput loop resistance


thanks.
 
Last edited:

Make sure Rf >> Rout impedance of Op Amp
eg use >>10K

same for CE amp
Av= Rc/Re

where Rc includes load of next stage

And if Re is bypassed with large C, then Re includes rBE and ESR of cap.
 
Status
Not open for further replies.

Similar threads

Cookies are required to use this site. You must accept them to continue using the site. Learn more…