New two CFOA-based sinusoidal RC oscillators with buffered outlet

被引：6
作者：
Abuelma'atti, Muhammad Taher [1 ]
机构：
[1] King Fahd Univ Petr & Minerals, Dhahran 31261, Saudi Arabia
来源：
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2011年 / 66卷 / 03期
关键词：
Sinusoidal oscillators; Current feedback operational amplifier; STATE-VARIABLE SYNTHESIS; STARTUP CONDITION;
D O I：
10.1007/s10470-010-9582-5
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Using a unified representation for a class of buffered-outlet two current-feedback operational amplifier (CFOAs)-based sinusoidal oscillators, new circuits of this type can be systematically discovered. A catalogue of four circuit structures, each structure realizing nine oscillator circuits, is presented. Moreover, using the RC:CR transformation, additional nine oscillator circuits can be obtained from each structure. While each circuit requires five passive elements, some of the circuits enjoy one or more of the following attractive features: use of grounded capacitors, feasibility of absorbing the parasitic components of the CFOAs and orthogonal tuning of the frequency and the startup condition of oscillation.
引用
收藏
页码：475 / 482
页数：8
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