Current-mode differential wave active filters

Souliotis, George; Haritantis, I.

doi:10.1109/tcsi.2004.840103

Cited by 17 publications

(14 citation statements)

References 14 publications

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“…The expressions of the resonant frequency x o and quality factor Q are given by (6) and (7), respectively, as …”

Section: Simo Universal Biquadmentioning

confidence: 99%

“…The resonant frequency x o and the Q factor of the filter are still given by (6) and (7) respectively. As a result, the same conclusions hold about the orthogonal dependency between parameters x o and Q and the electronic tunability of parameter x o .…”

Section: Miso Universal Biquadmentioning

confidence: 99%

“…In addition, the input resistance of current mirrors is used for realizing the required passive resistors leading also in the capability for electronic adjustment of their values. Thus, an electronic tuning is possible in the case of analog filters because the realized time constants are controlled by a dc bias current [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Universal biquad filters using low-voltage current mirrors

Laoudias

Psychalinos

2010

Analog Integr Circ Sig Process

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Novel Single Input Multiple Output (SIMO) and Multiple Input Single Output (MISO) current-mode universal biquad topologies are introduced in this paper. The proposed topologies have been realized by employing low-voltage current mirrors as active elements. As a result, an absence of resistors is achieved in the derived filter topologies; also only grounded capacitors are required. The resonant frequency of the filters can be electronically controlled by an appropriate dc current. In addition, the derived filters offer the feature of orthogonal adjustment between the resonant frequency and Q factor. The behavior evaluation of the proposed filters has been performed through a test chip prototype fabricated in AMS 0.35 lm CMOS technology.

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“…The expressions of the resonant frequency x o and quality factor Q are given by (6) and (7), respectively, as …”

Section: Simo Universal Biquadmentioning

confidence: 99%

Section: Miso Universal Biquadmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Universal biquad filters using low-voltage current mirrors

Laoudias

Psychalinos

2010

Analog Integr Circ Sig Process

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show abstract

“…In addition, the proposed method makes use of another very interesting feature that certain implementations of wave active equivalents exhibit [6,7]. More specifically, it is possible for a wave equivalent circuit to behave as a transmition gate, by simply omitting the termination capacitor.…”

Section: Introductionmentioning

confidence: 99%

Field-programmable analogue array design based on the wave active filter design method

Fragoulis

Souliotis

Besiris

et al. 2009

AEU - International Journal of Electronics and Communications

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“…Due to their variable topology, a drawback is that one output is available for each combination of the input signals. In addition, a manipulation of the filter topology is required in [2] and [6] for realizing the possible filter transfer functions.…”

Section: Introductionmentioning

confidence: 99%

Single input multiple output universal biquad using current mirrors

Laoudias

Psychalinos

2008

2008 15th IEEE International Conference on Electronics, Circuits and Systems

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A novel single-input second-order multifunction filter realized by employing current mirrors is introduced in this manuscript. The proposed topology offers simultaneously the lowpass, highpass, bandpass, and bandstop frequency responses. Other attractive characteristics are its potential for low-voltage operation and the electronic tuning. In addition, the only passive elements used for realizing the multifunction filters are grounded capacitors. The filter topology could become universal by employing additional circuitry. Simulation results confirm the correct operation of the proposed structure.

show abstract

Current-mode differential wave active filters

Cited by 17 publications

References 14 publications

Universal biquad filters using low-voltage current mirrors

Universal biquad filters using low-voltage current mirrors

Field-programmable analogue array design based on the wave active filter design method

Single input multiple output universal biquad using current mirrors

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