Realization of High-Order OTRA-MOSFET-C Active Filters

被引：0
|
作者：
Yuh-Shyan Hwang
Dong-Shiuh Wu
Jiann-Jong Chen
Chun-Chi Shih
Wen-Shou Chou
机构：
[1] Department of Electronic Engineering,
[2] National Taipei University of Technology,undefined
[3] Department of Electronic Engineering,undefined
[4] Lunghwa University of Science and Technology,undefined
[5] Department of Information Communication,undefined
[6] Yuan-Ze University,undefined
来源：
Circuits, Systems & Signal Processing | 2007年 / 26卷
关键词：
Active Filter; Propose Design Method; Analog Integrate Circuit; Signal Processing Circuit; Passband Ripple;
D O I：
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学科分类号：
摘要：
High-order linear transformation (LT) MOSFET-C active filters with reduced parasitic capacitance effects based on operational transresistance amplifiers (OTRAs) are presented in this paper. A systematic method is developed to realize voltage-mode LT OTRA-based filters efficiently. Based on the proposed design procedures, we can synthesize high-order filters with OTRAs with only MOSFET resistor circuits (MRCs) and virtual grounded capacitors. Signal processing circuits employing OTRAs have almost constant bandwidths because of the use of current-feedback configurations. A third-order Chebychev lowpass filter is demonstrated. HSPICE simulation results that confirm the theoretical analysis are obtained. Furthermore, the proposed circuits can be extended to higher-order filters.
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页码：281 / 291
页数：10
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