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A Constructive Methodology of Analog Synthesis of Nonlinear Functions in Subthreshold CMOS
Journal of Circuits, Systems and Computers ( IF 1.5 ) Pub Date : 2021-03-31 , DOI: 10.1142/s0218126621502212
Lazhar Fekih-Ahmed 1
Affiliation  

We introduce a clear constructive methodology of approximation and synthesis of analog functions using the transfer characteristics of the basic differential pair. The new methodology provides circuit designers with an easy-to-understand solution of the function approximation problem employing MOSFETs in weak inversion. It further provides compact formulas for the optimal coefficients involved in the approximation. We confirm the design methodology using SPICE through two examples involving the exponential function.

中文翻译:

亚阈值 CMOS 中非线性函数模拟合成的建设性方法

我们介绍了一种使用基本差分对的传输特性来逼近和合成模拟函数的明确的建设性方法。新方法为电路设计人员提供了一个易于理解的解决方案,以解决在弱反相中使用 MOSFET 的函数逼近问题。它进一步为近似中涉及的最佳系数提供了紧凑的公式。我们通过两个涉及指数函数的示例来确认使用 SPICE 的设计方法。
更新日期:2021-03-31
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