Simple current-mode analog multiplier, divider, square-rooter and squarer based on CDTAs

A New High Precision Power Detector of Complex Voltage Signals

“…the outputs of MO-CCCII and CCCII are directly driving bias inputs of the CCCDTA, which has been also used in certain realizations based on the use of CDTA [36][37][38][39] which have been confirmed thus far. This approach induces no problems in BJT operation, i.e.…”

Performance enhancement of current differencing transconductance amplifier (CDTA) by using a new approach of gm boosting and its application

“…There are few papers published on different structures of CDTA [2][3][4][5][6][7][8][9][10] in which its advantages and disadvantages have been shown and compared with other state of the art solutions. Apart from work on the structures of CDTA, there are numerous papers published on the applications such as current limiter [11], filters [12][13][14][15][16][17][18][19], modulators [20], multiplier [21], oscillators [22][23][24][25][26][27][28][29][30][31][32][33][34][35], rectifiers [36][37][38], Schmitt trigger [39], and squarer and square rooter circuit [40]. Tranconductance of CDTA plays a vital role in all the applications cited above.…”

Current-mode universal filter and quadrature oscillator using CDTAs

“…The CDTA is a true current-mode element because its inputs and outputs are all in current form, possessing the advantages of current-mode circuits, and it is an excellent active block in resistorless analog circuit design. As a result, a variety of CDTA-based applications have been reported, such as universal filters [10][11][12][13][14][15], sinusoidal oscillators [16][17][18][19][20], multipliers and dividers [21], and current limiters [22].…”