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本文提出了一种184.8dB FoMS、1.6MS/s的增量噪声整形流水线ADC，采用基于单放大的kT/C噪声消除技术，解决了传统zoom ADC因低量化电平导致转换速度受限的问题。
high-resolution ∆Σ modulator, is favored for sensor nodes demanding high accuracy, good energy efficiency, and easy system integration. Conventional zoom ADCs, constrained by the low quantization levels of ∆Σ modulators, require extensive conversion cycles for the desired resolution, consequently restricting the conversion speed to several tens of kHz [1]–[6]. To improve the conversion speed, recent development incorporates the emerging NS-SAR quantizer as the fine stage. Thanks to the highly efficient multi-bit SAR quantization, the required conversion cycle is largely reduced, realizing a boosted speed of 300kS/s [7]. However, the reduced OSR deteriorates the sampling noise issue due to insufficient averaging. Although kT/C noise cancellation can be performed to reduce its impact, the
Zongnan Wang, Bingrui Li, Jiajun Tang, Zhongyi Wu, Haoyang Luo, Yuan Wang, Xiyuan Tang
Peking University, Beijing, China The incremental zoom ADC, integrating a low-power SAR quantizer with a