Jacki
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Hello,
Recently I read some documents about SAR-ADC and sigma-delta ADC. I find for SAR-ADC if mismatch calibration is not used, the SNDR is limited by mismatch, and it is hard for SAR-ADC to reach more than 12 bits. But for sigma-delta ADC, as I remembered, its SNDR is not dominated by mismatch, in other words, mismatch is not a big impact on the SNDR. Could anybody explain the reason for me, is it right for both CT-sigma-delta ADC and SC-sigma-delta ADC? Thank you very much. Jacki
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