Tunable fully-differential filter employing MOTA and DACA elements

被引：0
|
作者：
Langhammer, L. [1 ]
Jerabek, J. [1 ]
Polak, J. [1 ]
Sotner, R. [1 ]
Stork, P. [1 ]
机构：
[1] Brno Univ Technol, Fac Elect Engn & Commun, Dept Telecommun, Tech 12, Brno 61600, Czech Republic
来源：
INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES | 2016年 / 23卷 / 2-3期
关键词：
Current amplifiers; Current-mode; DACA; Frequency filter; Fully-differential; MOTA; Single-ended; Operational transconductance amplifier; CURRENT-MODE; UNIVERSAL FILTER;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new fully-differential (F-D) filtering structure of the second-order current-mode universal filter is described in this paper. Presented filter is also proposed in a single-ended (S-E)form in order to compare behavior of single-ended and fully-differential structures. Signal-flow graphs method is used to design both presented filters. Multi-output transconductance amplifiers (MOTAs), digitally adjustable current amplifier (DACA), multi-output current follower (MO-CF) and fully differential current follower (FD-CF) are used in proposed filters. Filters possess of ability to adjust their pole frequency and quality factor independently of each other. The actual function of proposed filters has been verified by PSpice simulations and experimental measurements.
引用
收藏
页码：107 / 119
页数：13
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