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Here is the result:
𝟏 𝒑𝒓𝒐𝒑𝒆𝒓 𝑽(𝑶𝒖𝒕)/𝑽𝒊𝒏 =
𝑨
𝒗
(𝑨
𝒗
+ 𝟏)𝑪
𝟐
𝑪
𝟒
𝑹
𝟏
𝑹
𝟑
|𝐬|
𝟐
+ ((𝑨
𝒗
+ 𝟏)𝑪
𝟒
𝑹
𝟑
+ ((𝑨
𝒗
+ 𝟏)𝑪
𝟒
+ 𝑪
𝟐
)𝑹
𝟏
)|𝐬| + 𝑨
𝒗
+ 𝟏
The results are stored in Maxima variables XFER[ 1 ] where ‘1’ is the number in front of the
output. The 2nd transfer function represents the effect of the ‘INTERN’ input(s).
We can use Maxima to compute the transfer function for an ideal gain of the amplifier by
applying a limit():
We can also use Maxima to postprocess the results to get the sensitivity of the transfer
function to the value of an element, here the sensitivity to R_1: