DVCC-based Electronically Tunable First-Order Current-mode Filters

DVCC-based Electronically Tunable First-Order Current-mode Filters

The advent of differential voltage current conveyor(DVCC) has opened up new avenues in analog circuit design. In the present work, a DVCC has been employed to designcurrent-mode first-order continuous-time analog filters. Parameter tunability is achieved by the use of a two-MOSFET electronicresistor which exhibits variation in resistance in accordancewith a control voltage. The proposed circuit...

High Output Impedance Electronically Tunable Current-mode First-order Allpass Filter with Gain Controllability Based on Current Controlled Current Conveyors

In this paper, a gain controllability current-mode first-order allpass filter employing second generation current controlled current conveyor (CCCII) is presented. The proposed circuit uses three CCCIIs and one grounded capacitor without any external resistors, which is easier for monolithic IC implementation. The gain and phase responses are electronically and independently controlled which is...

Compact VDTA-based current-mode electronically tunable universal filters using grounded capacitors

This paper presents a compact current-mode three-input single-output (TISO) type universal filter. Only one voltage differencing transconductance amplifier (VDTA) and two grounded capacitors are employed in the proposed filter. The circuit can realize lowpass, bandpass, highpass, bandstop and allpass biquadratic filter outputs by connecting the appropriate inputs, and offers electronic control ...

Electronically Tunable Analog Active Filters

Electronically tunable RC-active ladder filter transfer fun& tions ore realized by employing the four quadrant analogue multiplier os the basic nonlinear network element. All the frequency dependent branches of a conventional RC-active ladder structure realizations ore simulated by means of impedance scaling networks. The scaling of these impedances allows the cutoff frequency of an elliptic lo...

Modified Mixed-Mode Universal Filters Using DVCC