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本文提出一种单通道70dB-SNDR、100MHz带宽的四阶噪声整形流水线SAR ADC，通过残差放大器误差整形技术解决了传统流水线SAR ADC中残差放大器噪声和非线性限制动态范围的问题，实现了高能效宽带转换。
Chi-hang Chan*1, R. P. Martins1,3 University of Macau, Macau, China Xidian University, Xi’an, China 3 Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal *Equally Credited Authors (ECAs) 1 2 Emerging wireless standards demand ADCs with hundred megahertz (MHz) bandwidth (BW) with an inband dynamic range (DR) better than 60dB. Continuous-time sigma-delta modulators can accommodate a high DR under low OSR for a wideband target [1]. Nevertheless, power-hungry integrators limit the energy efficiency of CTSDMs with a best reported ~166dB Schreier FoM (FoMS), while suffering from the STF peaking issue. Noise-shaping SAR (NS-SAR) ADCs are free from the aforementioned constraints, and well-suited to multi-standard wireless communication systems with an energy-efficient, fully passive integrator and an easily configurable architecture. Furthermore by timeInterleaving the NS-SAR (TINS-SAR), the BW boosts to 80MHz with ~66dB SNDR,
Yanbo Zhang*1,2, Junyan Hao1,2, Shubin Liu2, Zhangming Zhu2, Yan Zhu1,