New current–mode special function continuous-time active filters employing only OTAs and OPAMPs

Erdogan, E.S.; Topaloglu, Rasit Onur; Kuntman, Hakan; Çiçekoğlu, Oğüzhan

doi:10.1080/002072140410001695237

Cited by 27 publications

(8 citation statements)

References 6 publications

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“…To judge the quality of the output, total harmonic distortion (%THD) is obtained for the band-pass filter as shown in Figure 9. The %THD is well within the acceptable limit of 5% [12]. Response as shown in Figure 9 reveals that the output is of good quality.…”

Section: Simulation Resultsmentioning

confidence: 67%

Voltage Mode Universal Biquad Using CCCII

Ranjan

Paul

2011

Active and Passive Electronic Components

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This paper proposes a multi-input single-output (MISO) second-order active-C voltage mode (VM) universal filter using two second-generation current-controlled current conveyors (CCCIIs) and two equal-valued capacitors. The proposed circuit realizes low pass, band pass, high pass, all pass, and notch responses from the same topology. The filter uses-minimum number of passive components and no resistor which is suitable for IC Design. The filter enjoys low-sensitivity performance and exhibits electronic and orthogonal tunability of pole frequency () and quality factor () via bias current of CCCIIs. PSPICE simulation results confirm the theory.

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Section: Simulation Resultsmentioning

confidence: 67%

Voltage Mode Universal Biquad Using CCCII

Ranjan

Paul

2011

Active and Passive Electronic Components

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“…Large signal behavior of the proposed filter is investigated by observing the dependence of the output total harmonic distortion (%THD) upon the level of input signal. The result as illustrated in Figure 9, shows that the %THD is well within the reasonable limit of 4% [19] for input peak-to-peak voltage level of 2 V. Responses as shown in Figures 8 and 9 reveal that the output is of good quality.…”

Section: Simulation and Resultsmentioning

confidence: 71%

Nth Order Voltage Mode Active-C Filter Employing Current Controlled Current Conveyor

Ranjan¹,

Paul²

2011

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This paper proposes an nth order (where n = 2,3, ,n) voltage mode active-C filter using n number of current controlled current conveyors (CCCIIs) and n number of equal valued grounded capacitors. The proposed topology can implement both band pass and low pass responses without alteration of any components. The filters offer the following important features: use of minimum number of current controlled current conveyors (CCCIIs) and passive components, no matching constraint, use of all grounded capacitors and absence of external resistor suitable for integration, cut off frequency can easily be electronically adjusted using AMS 0.35 µm CMOS technology. PSPICE simulation results of third order band pass and low pass responses are provided. The results are found to agree well with the theory

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“…The percentage total harmonic distortion (%THD) variation with the sinusoidal input signal is also studied and the results are shown in Figure 7. It shows that the %THD is low and remains within the acceptable limit of 5% [21] till the considerable high input signal of 800 mV.…”

Section: Simulation Resultsmentioning

confidence: 92%

SIMO Transadmittance Mode Active-C Universal Filter

Pandey¹,

Paul²

2010

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This paper presents two transadmittance mode universal filters having single voltage input and multiple current outputs. The filter employs three multiple output current controlled conveyors (MOCCCII) and two grounded capacitors. It can realize low pass, high pass, band pass, notch and all pass responses. As desired, the input voltage signal is inserted at high impedance input terminal and the output currents are obtained at high impedance output terminals and hence eases cascadability. The filter enjoys low sensitivity performance and low component spread; and exhibits electronic and orthogonal tunability of filter parameters via bias currents of MOCCCII. SPICE simulation results confirm the workability of the proposed structure.

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New current–mode special function continuous-time active filters employing only OTAs and OPAMPs

Cited by 27 publications

References 6 publications

Voltage Mode Universal Biquad Using CCCII

Voltage Mode Universal Biquad Using CCCII

Nth Order Voltage Mode Active-C Filter Employing Current Controlled Current Conveyor

SIMO Transadmittance Mode Active-C Universal Filter

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