A Fully Integrated Memristive Chaotic Circuit Based on Memristor Emulator with Voltage-Controlled Oscillator
This paper introduces a fully integrated memristive chaotic circuit, which is based on a voltage-controlled oscillator (VCO). The circuit employs a fully integrated architecture that offers reduced power consumption and a smaller footprint compared to the use of discrete components. Specifically, th...
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MDPI AG
2025-02-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/16/3/246 |
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| author | Zhikui Duan Jiahui Chen Shaobo He Xinmei Yu Qiang Wang Xin Zhang Peng Xiong |
| author_facet | Zhikui Duan Jiahui Chen Shaobo He Xinmei Yu Qiang Wang Xin Zhang Peng Xiong |
| author_sort | Zhikui Duan |
| collection | DOAJ |
| description | This paper introduces a fully integrated memristive chaotic circuit, which is based on a voltage-controlled oscillator (VCO). The circuit employs a fully integrated architecture that offers reduced power consumption and a smaller footprint compared to the use of discrete components. Specifically, the VCO is utilized to generate the oscillatory signal, whereas the memristor emulator circuit serves as the nonlinear element. The memristor emulator circuit is constructed using a single operational transconductance amplifier (OTA), two transistors, and a grounded capacitor. This straightforward design contributes to diminished power usage within the chip’s area. The VCO incorporates a dual delay unit and implements current compensation to enhance the oscillation frequency and to broaden the VCO’s tunable range. Fabricated using the SMIC 180 nm CMOS process, this chaotic circuit occupies a mere 0.0072 mm<sup>2</sup> of chip area, demonstrating a design that is both efficient and compact. Simulation outcomes indicate that the proposed memristor emulator is capable of operating at a maximum frequency of 300 MHz. The memristive chaotic circuit is able to produce a chaotic oscillatory signal with an operational frequency ranging from 158 MHz to 286 MHz, powered by a supply of 0.9 V, and with a peak power consumption of 3.5553 mW. The Lyapunov exponent of the time series within the resultant chaotic signal spans from 0.2572 to 0.4341. |
| format | Article |
| id | doaj-art-31bddd5b299b4ad18fae41a3b6aedea0 |
| institution | OA Journals |
| issn | 2072-666X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
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| series | Micromachines |
| spelling | doaj-art-31bddd5b299b4ad18fae41a3b6aedea02025-08-20T01:48:57ZengMDPI AGMicromachines2072-666X2025-02-0116324610.3390/mi16030246A Fully Integrated Memristive Chaotic Circuit Based on Memristor Emulator with Voltage-Controlled OscillatorZhikui Duan0Jiahui Chen1Shaobo He2Xinmei Yu3Qiang Wang4Xin Zhang5Peng Xiong6School of Electronic Information Engineering, Foshan University, Foshan 528225, ChinaSchool of Electronic Information Engineering, Foshan University, Foshan 528225, ChinaSchool of Automation and Electronic Information, Xiangtan University, Xiangtan 411105, ChinaSchool of Electronic Information Engineering, Foshan University, Foshan 528225, ChinaSchool of Electronic Information Engineering, Foshan University, Foshan 528225, ChinaSchool of Electronic Information Engineering, Foshan University, Foshan 528225, ChinaSchool of Electronic Information Engineering, Foshan University, Foshan 528225, ChinaThis paper introduces a fully integrated memristive chaotic circuit, which is based on a voltage-controlled oscillator (VCO). The circuit employs a fully integrated architecture that offers reduced power consumption and a smaller footprint compared to the use of discrete components. Specifically, the VCO is utilized to generate the oscillatory signal, whereas the memristor emulator circuit serves as the nonlinear element. The memristor emulator circuit is constructed using a single operational transconductance amplifier (OTA), two transistors, and a grounded capacitor. This straightforward design contributes to diminished power usage within the chip’s area. The VCO incorporates a dual delay unit and implements current compensation to enhance the oscillation frequency and to broaden the VCO’s tunable range. Fabricated using the SMIC 180 nm CMOS process, this chaotic circuit occupies a mere 0.0072 mm<sup>2</sup> of chip area, demonstrating a design that is both efficient and compact. Simulation outcomes indicate that the proposed memristor emulator is capable of operating at a maximum frequency of 300 MHz. The memristive chaotic circuit is able to produce a chaotic oscillatory signal with an operational frequency ranging from 158 MHz to 286 MHz, powered by a supply of 0.9 V, and with a peak power consumption of 3.5553 mW. The Lyapunov exponent of the time series within the resultant chaotic signal spans from 0.2572 to 0.4341.https://www.mdpi.com/2072-666X/16/3/246memristor emulatorvoltage-controlled oscillatorintegrated circuitchaotic circuit |
| spellingShingle | Zhikui Duan Jiahui Chen Shaobo He Xinmei Yu Qiang Wang Xin Zhang Peng Xiong A Fully Integrated Memristive Chaotic Circuit Based on Memristor Emulator with Voltage-Controlled Oscillator Micromachines memristor emulator voltage-controlled oscillator integrated circuit chaotic circuit |
| title | A Fully Integrated Memristive Chaotic Circuit Based on Memristor Emulator with Voltage-Controlled Oscillator |
| title_full | A Fully Integrated Memristive Chaotic Circuit Based on Memristor Emulator with Voltage-Controlled Oscillator |
| title_fullStr | A Fully Integrated Memristive Chaotic Circuit Based on Memristor Emulator with Voltage-Controlled Oscillator |
| title_full_unstemmed | A Fully Integrated Memristive Chaotic Circuit Based on Memristor Emulator with Voltage-Controlled Oscillator |
| title_short | A Fully Integrated Memristive Chaotic Circuit Based on Memristor Emulator with Voltage-Controlled Oscillator |
| title_sort | fully integrated memristive chaotic circuit based on memristor emulator with voltage controlled oscillator |
| topic | memristor emulator voltage-controlled oscillator integrated circuit chaotic circuit |
| url | https://www.mdpi.com/2072-666X/16/3/246 |
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