A New High Multiplication Factor Tunable Grounded Positive and Negative Capacitance Simulator

M. Al-Absi, A. Al-Khulaifi
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引用次数: 3

Abstract

This paper presents a CMOS grounded tunable capacitance multiplier with high multiplication factor. The proposed circuit uses the translinear loop stage and two OTAs stages. The MOS transistors are biased in subthreshold region to provide high multiplication factor. The total multiplication factor is widely tunable and can be up to 1200 times of the value C with maximum error of 8%. The circuit is simulated using TANNER TSPICE with 0.18µm TSMC level 49 technology. The circuit operated using ± 0.75 supply voltage and it works in low frequency under 10KHz which satisfies the requirements of biomedical and low frequency applications.
一种新型高倍率可调接地正负电容模拟器
提出了一种基于CMOS接地的高倍率可调电容倍增器。所提出的电路采用了线性环路级和两个ota级。MOS晶体管偏置在亚阈值区域,以提供高倍增系数。总的乘法系数可广泛调节,可高达值C的1200倍,最大误差为8%。该电路采用TANNER TSPICE和0.18µm TSMC level 49技术进行仿真。电路工作在±0.75电源电压下,工作在10KHz以下的低频,满足生物医学和低频应用的要求。
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