CMOS realization of voltage differencing gain amplifier (VDGA) and its application to biquad filter

被引：0
|
作者：
Satansup, Jetsdaporn [1 ]
Tangsrirat, Worapong [2 ]
机构：
[1] Rajamangala Univ Technol Rattanakosin RMUTR, Fac Engn, Nakhon Pathom 73170, Thailand
[2] KMITL, Fac Engn, Bangkok 10520, Thailand
来源：
INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES | 2013年 / 20卷 / 06期
关键词：
Voltage differencing gain amplifier (VDGA); Biquad filter; Resistorless realization; Voltage-mode circuit; BUFFERED AMPLIFIER; HIGH-INPUT; UNIVERSAL; ELEMENTS; NUMBER;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A circuit realization of the voltage differencing gain amplifier (VDGA) using only tunable transconductance cells is described in this paper. The newly defined element is conceptually a combination of the voltage differencing unit and the current-controlled voltage amplifier. The advantage feature of the proposed element is that the important transfer characteristics are electronically tunable by means of external bias currents. As application example, the resistorless realization of voltage-mode biquad filter based on the proposed VDGA is also introduced. PSPICE simulation results of the proposed circuit and its application are given to confirm the theoretical analysis.
引用
收藏
页码：457 / 464
页数：8
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