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基于亚阈值的超低功耗数字电路与系统正在兴起。为了全面阐述和剖析亚阈值电路的研究状况,调研了亚阈值电路的设计发展过程,阐述了亚阈值电路设计的发展趋势。针对亚阈值电路研究中的主要问题,给出了设计实例。比较了亚阈值电路中的典型设计方法学,并针对两种设计方法分析其优势和劣势。对目前亚阈值电路的研究热点作了阐述,指出其中存在的一些问题及研究方向。
Subthreshold-based ultra-low-power digital circuits and systems are emerging. In order to comprehensively expatiate and analyze the research status of sub-threshold circuits, the design and development of sub-threshold circuits are investigated. The development trend of sub-threshold circuits is also discussed. Aiming at the main problems in the research of subthreshold circuit, a design example is given. The typical design methodology in subthreshold circuits is compared and its advantages and disadvantages analyzed for both design methods. At present, the sub-threshold circuit research hotspot is described, pointing out some of the problems and research directions.