On the frequency limitations of the circuits based on second generation current conveyors

Fabre, Alain; Saaid, O.; Barthélémy, H.

doi:10.1007/bf01239166

Cited by 199 publications

(99 citation statements)

References 10 publications

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“…However, these transfer gains remain close to unity upto a very high frequency range (i.e. in GHz); the actual value depends upon the technology and the devices used in implementing the active element [25].…”

Section: Non-ideal Analysismentioning

confidence: 99%

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Single Active Element based Current-Mode All-Pass Filter

Mohan¹

2013

IJCA

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In this paper, a current-mode all-pass filter employing single multi-output dual-X second-generation current conveyor, a grounded resistor and a grounded capacitor is proposed. The circuit is as good as ideal for current-mode cascading by possessing low input and high output impedances. The use of grounded passive components makes the circuit, ideal for IC implementation. The effect of non-idealities and parasitics associated with the real MO-DXCCII implementation is also considered. The theoretical results are validated through PSPICE simulation program using 0.35µm CMOS process parameters.

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Section: Non-ideal Analysismentioning

confidence: 99%

“…However the circuit would employ a grounded capacitor at the X terminal of MO-DXCCII, which does pose a high frequency limitation. It is a well known fact that the use of capacitor at the X terminal of the current conveyor circuit would pose a high frequency limitation [25].…”

Section: Fig 2: Current-mode All-pass Filtermentioning

confidence: 99%

Single Active Element based Current-Mode All-Pass Filter

Mohan¹

2013

IJCA

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“…It is observed from Equations (20) and (21) that only if Z 1 = R, Z 2 = 1/(sC) and Z 3 = R || 1/(sC) are chosen for the circuits in Figures 2 and 3, the X-terminal parasitic resistor R xn along with the capacitor C brings extra poles/ zeros to the TFs which can restrict the high frequency operation of the circuit [39]. In fact, the proposed VM and CM circuits of type 2 suffer less from parasitic resistance at X-terminals than the proposed circuits of type 1 because in type 2 circuits, R + 1/sC impedances are connected at X-terminal and hence the resistor can be floating followed by a grounded capacitor and in this case, the parasitic resistance at X-terminal can be easily absorbed by added physical resistor and by making good characterization for the designed DXCCII.…”

Section: Non-ideality and Mismatching Effectsmentioning

confidence: 99%

Unity/Variable-gain Voltage-mode/Current-mode First-order All-pass Filters Using Single Dual-X Second-generation Current Conveyor

Mınaeı

Yüce

2010

IETE Journal of Research

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In this paper, two new general topologies for realizing voltage-mode (VM)/current-mode (CM) first-order all-pass filter transfer functions (TFs) are presented. The proposed topologies use single dual-X second-generation current conveyor (DXCCII) and three impedances Z 1 , Z 2 and Z 3 . Based on the selection of Z 1 , Z 2 and Z 3 , new VM and CM all-pass filters with unity or variable gains are obtained. The proposed VM/CM filters have high-input/high-output impedances which provide easy cascading at their input/output terminals, respectively. Non-ideal gain and parasitic impedance effects, associated with actual DXCCII implementation, on the performance of the developed topologies are also included. Finally, simulation program with integrated circuit emphasis (SPICE) simulation results based on level 49, 0.25 µm TSMC complementary metal-oxide-semiconductor (CMOS) technology parameters are given to confirm the theory.

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“…The features of the proposed circuit are that: the circuit description is very simple; it employs two CCCIIs and single grounded capacitor as passive component, which is suitable for fabrication in monolithic chip, which makes it suitable for high-frequency operations [24]. The time constant of integrator can be electronically controlled [25].…”

Section: Introductionmentioning

confidence: 99%

Tuneable Current Mode RMS Detector

Petrović

2015

Journal of Electrical Engineering

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A new realization of RMS detector, employing two CCCIIs (controlled current conveyors), metal-oxide-semiconductor transistors and single grounded capacitor is present in this paper, without any external resistors and components matching requirements. The proposed circuit can be applied in measuring the RMS value of periodic, band-limited signals. The proposed circuit is very appropriate to further develop into integrated circuits. The errors related to the signal processing and errors bound were investigated and provided. To verify the theoretical analysis, the circuit PSpice simulations have also been included, showing good agreement with the theory.

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On the frequency limitations of the circuits based on second generation current conveyors

Cited by 199 publications

References 10 publications

Single Active Element based Current-Mode All-Pass Filter

Single Active Element based Current-Mode All-Pass Filter

Unity/Variable-gain Voltage-mode/Current-mode First-order All-pass Filters Using Single Dual-X Second-generation Current Conveyor

Tuneable Current Mode RMS Detector

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