Realization of an all-pass transfer function using the second generation current conveyor

A new differential configuration suitable for realization of high CMRR, all-pass/notch filters

“…Several all-pass and notch filter realizations using active elements are available in the literature [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. These circuits use active elements such as second-generation current conveyors (CCII) [1-7, 9-11, 15, 17], operational amplifiers [12,17], current differencing buffered amplifiers (CDBA) [13], four terminal floating nullors (FTFN) [8,14], third-generation current conveyors (CCIII) [16,18] together with passive elements.…”

“…These circuits use active elements such as second-generation current conveyors (CCII) [1-7, 9-11, 15, 17], operational amplifiers [12,17], current differencing buffered amplifiers (CDBA) [13], four terminal floating nullors (FTFN) [8,14], third-generation current conveyors (CCIII) [16,18] together with passive elements. However all of these phase equalizers are single input-single output structures [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

First-Order All-Pass Filter Canonical in the Number of Resistors and Capacitors Employing a Single DDCC

“…Considering these advantages of current mode circuits, recently several voltage-and current-mode first-order all-pass filters using various active components have been reported [8], [15]- [17], [20], [23], [26], [30]. However, some of these circuits use four or more passive components [15], [17], [23], [26].…”

“…Considering these advantages of current mode circuits, recently several voltage-and current-mode first-order all-pass filters using various active components have been reported [8], [15]- [17], [20], [23], [26], [30]. However, some of these circuits use four or more passive components [15], [17], [23], [26]. One current-mode all-pass filter [8] employs two active components, and another [16] employs a four-terminal floating nullor (FTFN) as the active element, which has a more complex realization than a current conveyor [2], even though it uses a grounded capacitor.…”

New families of voltage-mode and current-mode filter circuits.

“…transfer functions, including allpass functions, and some voltage-mode allpass networks using CCs are proposed in the literature [35][36][37][38][39][40]. In Table 1.…”