Journal
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
Volume 113, Issue 2, Pages 171-184Publisher
SPRINGER
DOI: 10.1007/s10470-022-02074-3
Keywords
Memristor emulator; Incremental; decremental; Operational transconductance amplifier (OTA); CMOS
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In this paper, a flux controlled high frequency floating/grounded type memristor emulator circuit based on a single OTA is introduced using CMOS technology. The circuit has been simulated in LT-Spice and tested at a supply voltage of +/- 1.5 V, showing good performance up to 20 MHz.
In this paper, flux controlled high frequency floating/grounded type memristor emulator circuit based on single OTA (Operational Transconductance Amplifier) is introduced by using CMOS technology. The emulator is realized using single OTA, multi output transconductance amplifier, a grounded resistor and a grounded capacitor. The proposed circuit can be configured in both incremental and decremental topology by changing the connections. The proposed circuit has been simulated in LT-Spice using 0.18 mu m CMOS parameters at a supply voltage of +/- 1.5 V. The memristor characteristics can be electronically tuned by changing the transconductance of the OTAs. In addition, with change of the capacitor value in the proposed circuit, the pinched hysteresis loop observed in the current versus voltage plane can be held at higher frequencies. The proposed emulator circuit performs well up to 20 MHz.
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