Analogworld
Member level 1

Hi all,
I am wondering for a 12-bit resolution ADC, how big of a sampling capacitor at the front end should be in order to surpress the kT/C noise and opamp thermal noise from the later stages?
Peoples used 6pf before, I think it is way too big. Any ideas?
I am wondering for a 12-bit resolution ADC, how big of a sampling capacitor at the front end should be in order to surpress the kT/C noise and opamp thermal noise from the later stages?
Peoples used 6pf before, I think it is way too big. Any ideas?