Experimental validation of a high-frequency memristor emulator based on CCCCTA framework and its application in chaos circuit

Abstract

In this article, we introduce a Memristor Emulator model employing a single analog building block i.e., the Current Controlled Current Conveyor Transconductance Amplifier (CCCCTA), along with two resistors and one capacitor. The proposed memristor emulator operates up to 1 MHz and spans over a chip area of $38.23\mu m\times 48.34\mu m$. In addition, by using a simple switch connection, the proposed emulator circuit can be configured in both incremental as well as decremental configurations. The simulation results are based on a $\pm$1.1 V power supply and have been carried out on a 180 nm CMOS technology node. The results perfectly corroborate the theoretical propositions. Besides, the design incurs a power consumption of only 2.2 mW. The performance measures of the proposed memristor model have been assessed using Monte Carlo simulations. In addition, we have also verified the theoretical findings experimentally using off-the-shelf integrated circuits. The non-ideal analysis and post-layout simulations have been added to show the effects of the parasitic resistances and capacitances on the proposed memristor emulator. The effect of noise at the input has been incorporated using computer simulation to further assess the robust nature of the design. At last, we show the applicability of the proposed emulator circuit in generating chaos as well as amoeba’s adaptive behavior.