CMOS Transistor-Based Memristor Emulator Circuit Design for High Frequency Applications

In recent time, memristor is gaining widespread attention owing to its potential applications in analog and digital circuits, computer architectures, nano-dimension memories, logic, neuromorphic, and oscillator circuits. However, there is no single component or device available in the market that exhibit memristive behavior. Memristor emulator circuit is introduced to mimic the behavior of a real memristor and emulate its properties. In this work, we propose a transistor-based memristor emulator circuit, which is designed in TSMC 0.18 µm n-well CMOS process technology with a supply voltage of 1.8 V. The results show that the proposed emulator circuit can be switched with a low input voltage of 180 mV and its current-voltage characteristics produces pinched hysteresis loops in the range 15 MHz to 100 MHz, which makes the emulator suitable for high frequency applications. In addition, its layout occupies chip area of 54 µm X 51 µm.