Current-mode universal biquad with orthogonal ωo-Q tuning using OTAs

被引：0

作者：

Mongkolwai, Pratya ^{[1
,2
]}

Pukkalanun, Tattaya ^{[1
,2
]}

Tangsrirat, Worapong ^{[1
,2
]}

机构：

[1] KMITL, Fac Engn, Bangkok 10520, Thailand

[2] KMITL, ReCCIT, Bangkok 10520, Thailand

来源：

2007 6TH INTERNATIONAL CONFERENCE ON INFORMATION, COMMUNICATIONS & SIGNAL PROCESSING, VOLS 1-4 | 2007年

关键词：

operational transconductance amplifier (OTA); universal filter; current-mode circuit;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A two-input two-output (TITO) current-mode universal biquad using only four dual-output operational transconductance amplifier (DO-OTAs) and two grounded capacitors is described. By appropriately connecting the input and output terminals, the proposed circuit can provide lowpass, bandpass, highpass, bandstop and allpass current responses. The filter also offers an independent electronic control of the natural frequency (omega(o)) and the quality factor (Q) through the transconductance gain (g(m)) of the DO-OTAs. No critical matching conditions are imposed for realizing all the filter responses, and all the incremental parameter sensitivities are low.

引用

页码：850 / +

页数：2

共 13 条

[1] GROUNDING OF CAPACITORS IN INTEGRATED CIRCUITS [J].

BHUSHAN, M ;

NEWCOMB, R .

ELECTRONICS LETTERS, 1967, 3 (04) :148-&

[2] New multifunction OTA-C biquads [J].

Chang, CM .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 1999, 46 (06) :820-824

[3] UNIVERSAL ACTIVE-FILTER WITH CURRENT GAIN USING OTAS [J].

CHANG, CM ;

CHEN, PC .

INTERNATIONAL JOURNAL OF ELECTRONICS, 1991, 71 (05) :805-808

[4]

Chang CM, 2000, IEEE T CIRCUITS-I, V47, P1235, DOI 10.1109/81.873877

[5] LOG-DOMAIN FILTERING - AN APPROACH TO CURRENT-MODE FILTERING [J].

FREY, DR .

IEE PROCEEDINGS-G CIRCUITS DEVICES AND SYSTEMS, 1993, 140 (06) :406-416

[6] INDUCTORLESS CURRENT CONVEYOR ALLPASS FILTER USING GROUNDED CAPACITORS [J].

PAL, K ;

SINGH, R .

ELECTRONICS LETTERS, 1982, 18 (01) :47-47

[7] CURRENT-MODE CONTINUOUS-TIME FILTERS - 2 DESIGN APPROACHES [J].

RAMIREZANGULO, J ;

ROBINSON, M ;

SANCHEZSINENCIO, E .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 1992, 39 (06) :337-341

[8] Design of current-mode multiple output OTA and capacitor filters [J].

Sun, YC ;

Fidler, JK .

INTERNATIONAL JOURNAL OF ELECTRONICS, 1996, 81 (01) :95-99

[9] Temperature compensation of translinear current conveyor and OTA [J].

Surakampontorn, W ;

Riewruja, V ;

Kumwachara, K ;

Fongsamut, C .

ELECTRONICS LETTERS, 1998, 34 (08) :707-709

[10]

Tsukutani T, 1996, ELECTRON LETT, V32, P197, DOI 10.1049/el:19960128

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