sheldon
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Sachin,
Using the flip-around capacitor means that the S/H needs more common-mode rejection compared to the standard back-plate sampling. In back-plate sampling the common-mode level is reset to the common-mode level with every sample. However, with a flip-around sampler, the common-mode level is not reset, so the SH needs to reject the variations in common-mode level.
Best Regards,
Sheldon
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