⚡ 本页包含 AI 生成的分析内容,仅供参考
该论文提出了一种基于斩波kT/C噪声消除和Add-Then技术的缩放式电容-数字转换器(CDC),实现了185.2dB FoMs和8.7aFrms的高分辨率。该设计结合了SAR和ΔΣM的优势,有效解决了高能效与低延迟的矛盾,适用于高性能MEMS传感器等实时应用。
traditional lowspeed fields, such as measuring pressure [1] and humidity [2], to real-time applications like robotics and drones. E.g., high-performance MEMS motion-tracking devices feature a short measurement time of 31.25µs [3]. These developments necessitate capacitance-todigital converters (CDCs) with high resolution, good energy efficiency, and low latency. The zoom architecture, combining the merits of energy-efficient SAR with high-resolution ∆ΣM, draws rising attention [4-6]. Owing to the scaling friendliness and high efficiency, the VCObased time-domain (TD) ∆ΣM has been explored lately for the fine stage [7-9]. The VCO stage features intrinsic phase integration, thus obviating the need for power-hungry OTAs. The digitized phase output allows low-cost multi-bit quantization, largely reducing the
Bingrui Li, Zilong Shen, Haoyang Luo, Jiachang Yang, Zongnan Wang,
Yuan Wang, Xiyuan Tang Peking University, Beijing, China Recent advancements have broadened the use of capacitive sensors from