ammar_kurd
Junior Member level 3
Questoin regarding closed loop S/H architecture
in the book of "Data Conversion System Design" by "Razavi", the author said that including the sampling switch inside a feedback loop will help suppress the pedestal errors in S/H, the reason for that is that the switch will experience swings much smaller than the input output swings.
I understand that the pedestal error is related to the input voltage, but what I couldn't understand is:
How the feedback is effecting the swings seen by the switch.
I hope someone could clear the whole concept behind this that is (closed loop <==> swings).
in the book of "Data Conversion System Design" by "Razavi", the author said that including the sampling switch inside a feedback loop will help suppress the pedestal errors in S/H, the reason for that is that the switch will experience swings much smaller than the input output swings.
I understand that the pedestal error is related to the input voltage, but what I couldn't understand is:
How the feedback is effecting the swings seen by the switch.
I hope someone could clear the whole concept behind this that is (closed loop <==> swings).