Current Conveyor Transconductance Amplifier (CCTA) based Grounded Memcapacitor Emulator

Abstract

A new emulator circuit for designing memcapacitor is proposed in this work. The suggested circuit is designed using a current conveyor transconductance amplifier (CCTA), a memristor and a capacitor. Behaviour of the proposed circuit has been examined for a frequency range of 0.6Hz to 6.4Hz with the help of simulations performed in LTSPICE using TSMC 180nm process parameters. It has been observed that the area inside lobes reduces with increase in frequency. In comparison to other emulators reported in literature, the suggested circuit uses fewer passive components and does not require analog multipliers, thus making it simple to design. The correctness and efficacy of the proposed design are verified using transient analysis, non-volatility analysis, and pinched hysteresis loops.

Performance Evaluation of Low Power Hybrid Combinational Circuits using Memristor

“…To simulate NMOS and PMOS, the parameters used are L = 1.8u, W = 28u, and L = 9u, W = 64u, respectively. RON is 0.8 K in the memristor model [28], ROFF is 10,000 K, and Rinit is 8000 K in the memristor model [28]. All potential input combinations are tested and determined to be in agreement with the truth table.…”

“…A lower junction capacitance is achieved by shrinking the n-channel junction size to a smaller size. The variable resistance of the memristor is utilized to remove the PMOS transistor from the CMOS architecture [28]. As a result, the performance of this design paradigm is superior to that of MRL-based hybrid CMOS systems in every regard.…”

A method to design a fast chaotic oscillator using CCTA

“…The evidence mentioned above sheds light on the fantastic phenomena of Chua's circuit and enables the implementation of Chua's circuit using various active building blocks. One of the most adaptable and practical current-mode building blocks is the Current Conveyor Transconductance Amplifier (CCTA) [ [22] , [23] , [24] , [25] , [26] ].…”

Electronically Tunable Sinusoidal Oscillator Using Only Single Current-Controlled Current Conveyor Trans-Conductance Amplifier

“…Since then, other studies [2][3][4][5][6][7][8] have offered a variety of implementation choices for the CCTA block based on bipolar junction transistor (BJT), complementary metal oxide semiconductor (CMOS), or bipolar complementary metal-oxide semiconductor (BiCMOS) technology. This device's versatility has resulted in its ongoing recognition, as indicated by the numerous analog circuit functions that have been built using it [5][6][7][8][9][10][11][12]. To demonstrate its usefulness, the literature proposed multifunction filters [5], direct frequency modulator [6], shadow universal filters [8], memcapacitor emulator [9], differentiator and integrator [10], PID Controller [11], squaring and square-rooting circuits [12], and oscillator [14][15][16][17][18][19][20][21][22][23][24][25] using CCTA.…”

“…This device's versatility has resulted in its ongoing recognition, as indicated by the numerous analog circuit functions that have been built using it [5][6][7][8][9][10][11][12]. To demonstrate its usefulness, the literature proposed multifunction filters [5], direct frequency modulator [6], shadow universal filters [8], memcapacitor emulator [9], differentiator and integrator [10], PID Controller [11], squaring and square-rooting circuits [12], and oscillator [14][15][16][17][18][19][20][21][22][23][24][25] using CCTA. This CCTA block is simply constructed by connecting the output of a second-generation current conveyor (CCII) to the input of a trans-conductance amplifier that has both positive and negative polarities available at its output terminal.…”