Design of a Current-Mode OTA-Based Memristor Emulator for Neuromorphic Medical Application

Amel Neifar; Imen Barraj; Hassen Mestiri; Mohamed Masmoudi

doi:10.3390/mi16080848

Design of a Current-Mode OTA-Based Memristor Emulator for Neuromorphic Medical Application

Amel Neifar
, Imen Barraj
, Hassen Mestiri
, Mohamed Masmoudi

Computer Engineering

University of Sfax

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

This study presents transistor-level simulation results for a novel memristor emulator circuit. The design incorporates an inverter and a current-mode-controlled operational transconductance amplifier to stabilize the output voltage. Transient performance is evaluated across a 20 MHz to 100 MHz frequency range. Simulations using 0.18 μm TSMC technology confirm the circuit’s functionality, demonstrating a power consumption of 0.1 mW at a 1.2 V supply. The memristor model’s reliability is verified through corner simulations, along with Monte Carlo and temperature variation tests. Furthermore, the emulator is applied in a Memristive Integrate-and-Fire neuron circuit, a CMOS-based system that replicates biological neuron behavior for spike generation, enabling ultra-low-power computing and advanced processing in retinal prosthesis applications.

Original language	English
Article number	848
Journal	Micromachines
Volume	16
Issue number	8
DOIs	https://doi.org/10.3390/mi16080848
State	Published - Aug 2025

Keywords

CMOS
Memristive Integrate-and-Fire
circuit neuron
memristor emulator
operational transconductance amplifier
retinal protheses

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10.3390/mi16080848

Cite this

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title = "Design of a Current-Mode OTA-Based Memristor Emulator for Neuromorphic Medical Application",

abstract = "This study presents transistor-level simulation results for a novel memristor emulator circuit. The design incorporates an inverter and a current-mode-controlled operational transconductance amplifier to stabilize the output voltage. Transient performance is evaluated across a 20 MHz to 100 MHz frequency range. Simulations using 0.18 μm TSMC technology confirm the circuit{\textquoteright}s functionality, demonstrating a power consumption of 0.1 mW at a 1.2 V supply. The memristor model{\textquoteright}s reliability is verified through corner simulations, along with Monte Carlo and temperature variation tests. Furthermore, the emulator is applied in a Memristive Integrate-and-Fire neuron circuit, a CMOS-based system that replicates biological neuron behavior for spike generation, enabling ultra-low-power computing and advanced processing in retinal prosthesis applications.",

keywords = "CMOS, Memristive Integrate-and-Fire, circuit neuron, memristor emulator, operational transconductance amplifier, retinal protheses",

author = "Amel Neifar and Imen Barraj and Hassen Mestiri and Mohamed Masmoudi",

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journal = "Micromachines",

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AU - Neifar, Amel

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AU - Mestiri, Hassen

AU - Masmoudi, Mohamed

PY - 2025/8

Y1 - 2025/8

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AB - This study presents transistor-level simulation results for a novel memristor emulator circuit. The design incorporates an inverter and a current-mode-controlled operational transconductance amplifier to stabilize the output voltage. Transient performance is evaluated across a 20 MHz to 100 MHz frequency range. Simulations using 0.18 μm TSMC technology confirm the circuit’s functionality, demonstrating a power consumption of 0.1 mW at a 1.2 V supply. The memristor model’s reliability is verified through corner simulations, along with Monte Carlo and temperature variation tests. Furthermore, the emulator is applied in a Memristive Integrate-and-Fire neuron circuit, a CMOS-based system that replicates biological neuron behavior for spike generation, enabling ultra-low-power computing and advanced processing in retinal prosthesis applications.

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KW - memristor emulator

KW - operational transconductance amplifier

KW - retinal protheses

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ER -

Design of a Current-Mode OTA-Based Memristor Emulator for Neuromorphic Medical Application

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Keywords

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