Abstract
In this paper, a fully integrated memristor emulator using operational amplifiers (OAs) and analog multipliers is simulated. Based on the fully integrated memristor, a scroll-controllable hyperchaotic system is presented. By controlling the nonlinear function with programmable switches, the memristor-based hyperchaotic system achieves controllable scroll numbers. Moreover, the memristor-based hyperchaotic system is fully integrated in one single chip, and it achieves lower supply voltage, lower power dissipation, and smaller chip area. The fully integrated memristor and memristor-based hyperchaotic system are verified with the GlobalFoundries’ 0.18 μm CMOS process using Cadence IC Design Tools. The postlayout simulation results demonstrate that the memristor-based fully integrated hyperchaotic system consumes 90.5 mW from ±2.5 V supply voltage and it takes a compact chip area of 1.8 mm2.
Highlights
Memristor and multiscroll chaos systems are two research hotspots in recent years
Memristor is not commercially available, many memristive emulators have been reported [1,2,3,4,5]. Based on these memristive emulators, various kinds of memristor-based chaotic circuits have been presented [6,7,8,9,10,11,12] and they effectively promote the development of the memristive circuit theories
Elwakil et al [15] realized another integrated chaotic system in 2002, which further verified the advantages of the integrated chaotic circuits
Summary
Memristor and multiscroll chaos systems are two research hotspots in recent years. memristor is not commercially available, many memristive emulators have been reported [1,2,3,4,5]. A fully integrated memristor emulator using operational amplifiers (OAs) and analog multipliers is simulated.
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