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：

暂无

中图分类号：

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.

引用

页码：281 / 291

页数：10

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