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该论文提出了一种900MS/s、8.6 ENOB的时间交织2b/cycle SAR ADC，通过引入1b/cycle重构模式来提升分辨率，解决了2b/cycle结构中DAC和比较器失配、回踢噪声和偏移等误差源导致分辨率受限的问题。
consumption and hardware simplicity of SAR ADCs, 2b/cycle conversion structures in SAR ADCs have been actively studied in recent years for enhanced conversion rates and excellent FoM [1-3]. However, many error sources in the 2b/cycle SAR ADCs, such as mismatches between DACs and comparators, and the signal-dependent errors from comparators, namely kickback noise and offset, make it difficult to achieve high resolution. To date, pure 2b/cycle structures operating above hundreds of MS/s have shown a somewhat limited resolution with an ENOB lower than 7 at Nyquist rates [1,2]. As a derivation of the structure, a sub-ADC could be implemented using the 2b/cycle SAR ADC structure for high resolution as in [4], at the cost of
Hyeok-Ki Hong1, Hyun-Wook Kang1, Barosaim Sung1,
Choong-Hoon Lee2, Michael Choi2, Ho-Jin Park2, Seung-Tak Ryu1 KAIST, Daejeon, Korea, 2Samsung Electronics, Yongin, Korea 1 By taking advantage of the merits of the low power