ON THE FREQUENCY LIMITATIONS OF THE CIRCUITS BASED ON 2ND-GENERATION CURRENT CONVEYORS

被引：189
作者：
FABRE, A
SAAID, O
BARTHELEMY, H
机构：
[1] Laboratoire d'Electronique, Ecole Centrale de Paris, Chatenay-Malabry
[2] Laboratoire d'Electronique, Ecole Centrale de Paris, Chatenay-Malabry
来源：
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 1995年 / 7卷 / 02期
关键词：
D O I：
10.1007/BF01239166
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
An equivalent circuit for the translinear implementation of the second generation current conveyors with positive or negative current transfer is given. This circuit takes into account the various parasitic elements of the conveyor which induce frequency limitations (gain values, poles of the transfers, and parasitic impedances). The methods allowing the determination of the values for these parasitic elements are indicated and discussed. The effect of each element on the frequency responses of the circuits using the conveyors are studied in every detail. The frequency behavior of two circuits are analyzed as examples: a voltage amplifier without feedback and two configurations for a second order biquad filter operating in current-mode. All the theoretical results of the analysis are well confirmed from SPICE simulations.
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页码：113 / 129
页数：17
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