pz5921087
Member level 1
Hi,
I am now working on designing APS, the column amplifer I am going to use is shown in the figure,
It seems like a switched capacitor amplifer, but why it do not have a switch between VSF and Cin, how it works to sample the input? The DC bias from output was blocked by the feedback capacitor, so how to give the DC bias voltage to the negative input of opamp?
BTW should I use PSS and PAC to simualte the AC response?
Thanks!
I am now working on designing APS, the column amplifer I am going to use is shown in the figure,
It seems like a switched capacitor amplifer, but why it do not have a switch between VSF and Cin, how it works to sample the input? The DC bias from output was blocked by the feedback capacitor, so how to give the DC bias voltage to the negative input of opamp?
BTW should I use PSS and PAC to simualte the AC response?
Thanks!