ywguo
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Hi, all,
The clock of SC-CMFB is always non-overlapping clock, the same as the non-overlapping clock for sample and hold. However, it doesn't matter that the CMFB cap should be tied to the opamp output at sampling phase or hold phase. In a pipelined ADC with amplifier sharing, the CMFB cap is tied to the opamp output at stage1's sampling phase and stage2's hold phase, or vice versa. So don't worry about it.
BG Yawei
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