⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种采用超级流水线技术的1024点复数FFT核心，在0.27V超低电压下工作，频率达30MHz，单次变换能耗仅17.7nJ，解决了低电压下因漏电增加导致能量效率退化的问题。
University of Michigan, Ann Arbor, MI, 2Arizona State University, Tempe, AZ Recently, aggressive voltage scaling was shown as an important technique in achieving highly energy-efficient circuits. Specifically, scaling Vdd to near or subthreshold regions was proposed for energy-constrained sensor systems to enable long lifetime and small system volume [1][2][4]. However, energy efficiency degrades below a certain voltage, Vmin, due to rapidly increasing leakage energy consumption, setting a fundamental limit on the achievable energy efficiency. In addition, voltage scaling degrades performance and heightens delay variability due to large Id sensitivity to PVT variations in the ultra-low voltage (ULV) regime. This paper uses circuit and architectural methods to further reduce the minimum energy point, or Emin, and establish a new lower limit on energy efficiency, while simultaneously improving performance and robustness.
Mingoo Seok1, Dongsuk Jeon1, Chaitali Chakrabarti2, David Blaauw1, Dennis Sylvester1