Shadow Filters Using Multiple-Input Differential Difference Transconductance Amplifiers

被引:5
|
作者
Kumngern, Montree [1 ]
Khateb, Fabian [2 ,3 ,4 ]
Kulej, Tomasz [5 ]
机构
[1] King Mongkuts Inst Technol Ladkrabang, Sch Engn, Dept Telecommun Engn, Bangkok 10520, Thailand
[2] Brno Univ Technol, Dept Microelect, Technicka 10, Brno 60190, Czech Republic
[3] Czech Tech Univ, Fac Biomed Engn, Nam Sitna 3105, Kladno 27201, Czech Republic
[4] Univ Def, Dept Elect Engn, Kounicova 65, Brno 66210, Czech Republic
[5] Czestochowa Tech Univ, Dept Elect Engn, PL-42201 Czestochowa, Poland
关键词
shadow filter; differential difference transconductance amplifier; multiple-input MOS technique; analog filter; UNIVERSAL FILTER; FREQUENCY; CDTA;
D O I
10.3390/s23031526
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This paper presents new voltage-mode shadow filters employing a low-power multiple-input differential difference transconductance amplifier (MI-DDTA). This device provides multiple-input voltage-mode arithmetic operation capability, electronic tuning ability, high-input and low-output impedances. Therefore, the proposed shadow filters offer circuit simplicity, minimum number of active and passive elements, electronic control of the natural frequency and the quality factor, and high-input and low-output impedances. The proposed MI-DDTA can work with supply voltage of +/- 0.5 V and consumes 9.94 mu W of power. The MI-DDTA and shadow filters have been designed and simulated with the SPICE program using 0.18 mu m CMOS process parameters to validate the functionality and workability of the new circuits.
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页数:18
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