Electronically Tunable Memcapacitor Emulator Based on Operational Transconductance Amplifiers

Abstract

Memory circuit elements are of interest due to their use in different fields of science and technology. In this research, a new multi-outputs operational transconductance amplifiers (MO-OTA)-based memcapacitor emulator is proposed. The proposed emulator employs two OTAs, two capacitors, two resistors and an analog multiplier. The memcapacitor emulator circuit has electronically tunability property. Charge value of the memcapacitor can be adjusted by changing the transconductance [Formula: see text] value with the biasing current of the MO-OTA or frequency value of the input signal. In order to analyze the performance of the proposed circuit, memcapacitor emulator is simulated in 0.18[Formula: see text][Formula: see text]m TSMC CMOS process using LTSPICE and the simulation results are demonstrated.

OTA Based Mem-capacitor Validation and Implementation Using Commercially Available IC

“…In the literature that is currently available, active and passive component-based MCs are reported in Refs. [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25], which may be further classified as MC emulators without MR [10], [12]- [13], [17]- [19], [22], [24]- [25] and MR-based emulators, also known as mutator approach [11,[14][15][16][20][21]23].…”

“…It has been discovered that the MC emulator without MR works well for frequency selection, compatibility, and matching problems. Only a few MC emulators [10], [13], [18]- [19], [24] are determined to be good in the MC design in terms of compatible numbers of active components (three [10], three [13], four [18], three [19], and five [24]) and passive elements [19], and 3-C,2-R [24]).…”

A floating CCCII and DDCC based memcapacitor circuit with electronically controllable behavior

“…As passive elements in this memcapacitor circuit, two grounded capacitors, a floating resistor, and one grounded resistor are employed. The presented memcapacitor has an electrically controllable and it works between 1 and 10Hz frequency range (Konal & Kacar, 2021). Yesil A.…”

Design Consideration for Active–Only Memcapacitor Emulator Circuits

“…The synthesis of memcapacitor using conventional building blocks, i.e. integrators, summing amplifiers, on the other hand, is a more prudent approach as the optimized basic building blocks are easily accessible [14][15][16][17].…”