New current-mode current-controlled filters using the current-controlled conveyor

Abuelma’atti, Muhammad Taher; Tasadduq, Noman

doi:10.1080/002072198134030

Cited by 35 publications

(11 citation statements)

References 20 publications

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“…This consequently indicates that the frequency potential of circuits with CCCII will be much greater than that for OTA implementation. CCCII based circuits offer a wide range of electronic tunability of the circuit parameters and a wider frequency range of operation [6][7][8][9][10]. The circuit [6] besides requiring matching condition to realize AP function employs three dual-output positive/negative type CCCIIs and also needs current follower to sense the HP function at high impedance output.…”

Section: Introductionmentioning

confidence: 99%

“…CCCII based circuits offer a wide range of electronic tunability of the circuit parameters and a wider frequency range of operation [6][7][8][9][10]. The circuit [6] besides requiring matching condition to realize AP function employs three dual-output positive/negative type CCCIIs and also needs current follower to sense the HP function at high impedance output. The circuit [7] though using three single output positive/negative type CCCIIs but none of the filtering functions can be realized at high output impedance thus requiring additional current followers.…”

Section: Introductionmentioning

confidence: 99%

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SITO electronically tunable high output impedance current-mode universal filter

Shah

Rather

Iqbal

2006

Analog Integr Circ Sig Process

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A novel current-mode (CM) single-input and three-output (SITO) universal filter using two second generation current controlled conveyors (CCCIIs), one current follower (CF) and two capacitors is presented. The circuit is fully programmable and implements all the five generic filtering functions. The lowpass (LP), bandpass (BP), and highpass (HP) functions can be realized simultaneously while Notch (BS) and allpass (AP) responses can be implemented simply by connecting the appropriate node currents without requiring additional elements. The availability of currents at high impedances, facilitate cascadibility feature. The filter performance factors ω 0 and ω 0 /Q are electronically tunable through separate bias currents of the CCCIIs. SPICE simulation results are included to confirm the workability of the proposed circuit.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

SITO electronically tunable high output impedance current-mode universal filter

Shah

Rather

Iqbal

2006

Analog Integr Circ Sig Process

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“…The CCCII-based biquadratic filters have the capability of electronic tuning of ω 0 and Q. These filters can be of either multi-input and multi-output (MIMO) [4,20], or single-input and multi-output (SIMO) structure [2,3,9,10,12,14,16,17]. The MIMO filters can realize multifunction outputs by altering the way in which the input signals are connected.…”

Section: Introductionmentioning

confidence: 99%

“…In the CCCII-based SIMO current-mode filtering circuits reported earlier [3,9,10], each circuit contains three CCCIIs and two grounded capacitors. However, they cannot realize high impedance outputs except for the BP output in [3].…”

Section: Introductionmentioning

confidence: 99%

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A New Current-Mode Current-Controlled Universal Filter Based on CCCII(±)

Wang

Liu

Yan

2008

Circuits Syst Signal Process

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This paper proposes a new current-mode current-controlled single-input multiple-output type universal filter using non-inverting and inverting second generation current-controlled conveyors (CCCII(±)s). The proposed circuit employs four CCCII(±)s and two grounded capacitors, and it can simultaneously realize lowpass, bandpass, highpass, bandstop and allpass filter outputs. The circuit offers an independent electronic control of the natural angular frequency (ω 0 ) and quality factor (Q) by means of adjusting the bias current of the CCCII(±)s. The parameter sensitivities are all very low. Moreover, a high Q-value filter can be easily obtained by adjusting the ratio of two bias currents. PSPICE simulation results at the natural frequency of 1.27 MHz are given to demonstrate the advantages of the proposed circuit.

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