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This paper describes a new electronically tunable four inputs and single output voltage-mode universal biquadratic filter based on simple CMOS operational transconductance amplifiers (OTAs) and grounded capacitors. The proposed filter provides low-pass, high-pass, band-pass, band-stop and all-pass voltage responses at a high impedance input terminal, which enable easy cascadability. The circuit parameters...
A new current-controlled current-mode universal filter with three inputs and single output employing two translinear current conveyor and two grounded capacitors is presented. The proposed circuit provides low-pass, band-pass, high-pass, bandstop and all-pass current responses from the same configuration at a high impedance terminal. The filter also offers independent electronic control of the natural...
A new voltage-mode three inputs and one output universal biquadratic filter with high-input impedance employing six simple operational transconductance amplifiers (OTAs) and two grounded capacitors is presented. The proposed circuit offers the following features: realization of all the standard filter functions, that is, highpass, bandpass, lowpass, bandstop, and allpass filters; electronically tunable...
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