求上极板采样,桥接电容为单位电容的SAR ADC内DAC结构，十分感谢！

自顶，急需单位电容做桥接电容的上极板采样，发现相对下极板，这种结构很难实现

顶一下。

您請研讀附件,
(1) Split Capacitor DAC Mismatch Calibration in Successive Approximation ADC
(2) A 2 7mW 1MSps 10b analog-to-digital converter with built-in reference buffer and 1LSB accuracy programmable input ranges
(3) 10-b 50-MSs 820-uW SAR ADC with on-chip Digital Calibration
(4) A Study on Energty-and-Area-Efficient Charge Redistribution Successive Approximation Aaalog-to-Digital COnverters Page38
您就會到bridge Structure SAR ADC 架構need Cc and Cb Capacitor.

您需要study以下的論文
(1)Split Capacitor DAC Mismatch Calibration in Successive Approximation ADC
(2)A 10-b 50-MSs 820-uW SAR ADC with on-chip Digital Calibration
(3) A 2 7mW 1MSps 10b analog-to-digital converter with built-in reference buffer and 1LSB accuracy programmable input ranges
(4) A Study on Energy-and-Area-Efficient Charge Redistribution Successive Approximation Analog-to-Ditital Converters Author: Chen,Yanfei Page38
看完您就知道如何設計 Cc and Cb的電容值了

自顶，十分紧急，求做过SAR的朋友帮忙！

C.C.Liu

你好，有具体论文的名字吗

翻翻ISSCC JSSC你就知道了

谢谢各位的帮助，已经想到方法了，其实上下极板的原理是类似的，下极板的变通一下，开关方式变一下就是上极板的了

sdfwesdf

thanks a lot ！