moisiad
Member level 4
abo adc edaboard
I am designing a Pipeline ADC (VDD=1v, Resolution 8 bit, F=15MHz) .
The Opamp which i intend to use is a two stage differential Opamp. The input stage is a folded cascode and the second is a simple source follower which offers rail to rail output.
My questions are the following: What is the necessary input Common Mode Range of the Opamp in order the ADC work properly. Also what kind of simulations (except AC for gain and phase and DC) do i have to do in the Opamp (I suppose some transients) in order to verify its correct operation before i use it.
Thanks
I am designing a Pipeline ADC (VDD=1v, Resolution 8 bit, F=15MHz) .
The Opamp which i intend to use is a two stage differential Opamp. The input stage is a folded cascode and the second is a simple source follower which offers rail to rail output.
My questions are the following: What is the necessary input Common Mode Range of the Opamp in order the ADC work properly. Also what kind of simulations (except AC for gain and phase and DC) do i have to do in the Opamp (I suppose some transients) in order to verify its correct operation before i use it.
Thanks