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This paper introduces a current-mode universal biquadratic filter using current controlled current differencing buffered amplifiers (CCCDBAs). The filter circuit is constructed with two CCCDBAs, two current controlled current differencing amplifiers (CCCDAs) and two grounded capacitors. The circuit can realize low-pass, band-pass, high-pass, band-stop and all-pass transfer functions by choosing appropriate...
A new versatile voltage-mode biquadratic with four inputs and four outputs using two differential difference current conveyors (DDCCs), two grounded capacitors, and two resistors is proposed. The proposed circuit can act as a multifunction voltage-mode filter with one or three inputs and four outputs and can simultaneous realization of voltage-mode notch, highpass, bandpass and lowpass filter signals...
In this paper, the characteristics of the basic current mirror and the continuous-time current-mode current mirror integrator are analyzed. Using the two unlossy loop integrators and the basic current mirrors, the biquad circuit block is implemented. The signal flow graph (SFG) and the improved leap-frog (ILF) structure are simple to implement the six-order band pass filters. Exploring PSPICE9.1 simulation...
Despite the wealth of literature on Gm-C filters, the synthesis of high-order filter characteristics is still an active topic. In this paper the realization of Gm-C filters with current transfer functions based on multiple loop feedback structures are presented. The new method presents 32 structures in case of third-order filter. All the filter architectures contain minimum number of components and...
Four new filter configurations which employ single DO-CCII are proposed. The proposed filters operate in current mode (CM). The filters are canonical in the number of capacitors (2) and resistors (2). Depending on the choice of the type of four passive components, each filter structure can realize either the band-pass, low-pass or high-pass responses all at high impedance outputs. No difference terms...
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