New grounded and floating memristor emulators using OTA and CDBA

• Published in: International journal of circuit theory and applications Vol. 48; no. 7; pp. 1154 - 1179
• Main Authors: Yadav, Nisha, Rai, Shireesh Kumar, Pandey, Rishikesh
• Format: Journal Article
• Language: English
• Published: Bognor Regis Wiley Subscription Services, Inc 01.07.2020
• Subjects: analog filters; Analogue filters; CDBA; CMOS; Configurations; Emulators; grounded and floating memristor emulators; Hysteresis loops; Memristors; Operational amplifiers; OTA; pinched hysteresis loop; Transconductance
• ISSN: 0098-9886; 1097-007X
• DOI: 10.1002/cta.2774

Summary In this paper, grounded and floating decremental/incremental memristor emulators have been proposed by using an operational transconductance amplifier (OTA), current differencing buffered amplifier (CDBA), and a grounded capacitor. The proposed memristor emulators are simpler in design over most of the realizations of memristor emulators available in the literature. The proposed configurations of grounded and floating decremental memristor emulators can be easily converted into grounded and floating incremental memristor emulators. The pinched hysteresis loops obtained from proposed memristor emulators are maintained up to 1‐MHz frequency in both decremental and incremental configurations. Simulation results have been obtained using a Mentor Graphics Eldo simulation tool in 0.18‐μm complementary metal‐oxide semiconductor (CMOS) technology parameters. Analog filters have also been designed to verify the performance of proposed grounded and floating memristor emulators. In this paper, groundedand floating decremental/incremental memristor emulators have been proposed by using operationaltransconductance amplifier (OTA), current differencing buffered amplifier (CDBA) and a grounded capacitor. The proposed memristor emulators are simpler in design over most of the realizations of memristor emulatorsavailable in the literature. The pinched hysteresis loops obtained from proposed memristor emulators aremaintained up to 1 MHz frequency. Analog filters have also been designed to verify the performance of proposed grounded and floating memristor emulators.