PVT独立电流型CMOS指数电路的实现

IF 1.6 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Circuit Theory and Applications Pub Date : 2024-12-29 DOI:10.1002/cta.4414

Mazen M. Abouelezz, Muneer A. Al-Absi

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引用次数: 0

摘要

本文提出了一种采用CMOS技术的电流型指数电路。该设计对工艺、电压和温度（PVT）不敏感。该电路基于指数函数的泰勒级数近似，并采用饱和工作的MOSFET。使用CADENCE Virtuoso工具在0.18 μ m的TSMC CMOS技术中模拟提出的设计功能。电路由±1.25伏直流电源供电，归一化输入范围为±1。在100℃范围内，电路的最大温度误差为±0.13 dB。该电路可用于高达1.25 MHz的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Realization of PVT Independent Current-Mode CMOS Exponential Circuit

This paper presents a CMOS current-mode exponential circuit using CMOS technology. The design is insensitive to process, voltage, and temperature (PVT). The circuit is based on the Tylor series approximation of the exponential function and employs MOSFET operating in saturation. CADENCE Virtuoso tools are used to simulate the proposed design functionality in 0.18 µm of TSMC CMOS technology. The circuit is powered by a $\pm$ 1.25-volt DC source and has normalized input range of $\pm$ 1. The maximum temperature error of the circuit is $\pm$ 0.13 dB over a range of 100°C. The circuit can be used in applications up to 1.25 MHz of applications.

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来源期刊

International Journal of Circuit Theory and Applications 工程技术-工程：电子与电气

CiteScore

3.60

自引率

34.80%

发文量

277

审稿时长

4.5 months

期刊介绍： The scope of the Journal comprises all aspects of the theory and design of analog and digital circuits together with the application of the ideas and techniques of circuit theory in other fields of science and engineering. Examples of the areas covered include: Fundamental Circuit Theory together with its mathematical and computational aspects; Circuit modeling of devices; Synthesis and design of filters and active circuits; Neural networks; Nonlinear and chaotic circuits; Signal processing and VLSI; Distributed, switched and digital circuits; Power electronics; Solid state devices. Contributions to CAD and simulation are welcome.