greenjuice
Member level 1
As you know, If i make output resistance more bigger, my op amp has big gain but it has narrow bandwidth.
So I want to make transconductance gm of op amp more bigger
And then I think I can get more bigger gain with fixed output resistance and output capacitance(fixed bandwidth)
But I heard that if i make gm more bigger, bias current is larger and so output resistance is smaller
Is it true?
And If it is right,
why output resistance is smaller?
I want to know relation output resistance and bias current.
So I want to make transconductance gm of op amp more bigger
And then I think I can get more bigger gain with fixed output resistance and output capacitance(fixed bandwidth)
But I heard that if i make gm more bigger, bias current is larger and so output resistance is smaller
Is it true?
And If it is right,
why output resistance is smaller?
I want to know relation output resistance and bias current.