亚阈值电路最小能量运行的表征和建模

Proceedings of the 2004 International Symposium on Low Power Electronics and Design (IEEE Cat. No.04TH8758) Pub Date : 2004-08-09 DOI:10.1145/1013235.1013265

B. Calhoun, A. Chandrakasan

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引用次数: 210

摘要

亚阈值操作正在成为许多新应用的节能方法。本文研究了在阈下区域运行的电路的能量最小化。我们展示了给定技术的最佳V/sub DD/与设计特性和操作条件的依赖关系。求解总能量方程提供了在亚阈值操作中给定频率下最小化能量的最佳VDD和V/sub T/的解析解。一个200K晶体管FIR滤波器的SPICE仿真证实了解析解和最小能量工作点对重要参数的依赖关系。

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Characterizing and modeling minimum energy operation for subthreshold circuits

Subthreshold operation is emerging as an energy-saving approach to many new applications. This paper examines energy minimization for circuits operating in the subthreshold region. We show the dependence of the optimum V/sub DD/ for a given technology on design characteristics and operating conditions. Solving equations for total energy provides an analytical solution for the Optimum VDD and V/sub T/ to minimize energy for a given frequency in subthreshold operation. SPICE simulations of a 200K transistor FIR filter confirm the analytical solution and the dependence of the minimum energy operating point on important parameters.

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Proceedings of the 2004 International Symposium on Low Power Electronics and Design (IEEE Cat. No.04TH8758)

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