On-chip tunable Memristor-based flash-ADC converter for artificial intelligence applications

This study presents a novel hybrid memristor (MR)-complementary metal–oxide–semiconductor-based flash analogue-to-digital converter (ADC). The speed and efficiency of the ADC are important aspects that can significantly affect the overall system performance. The flash ADC is considered the fastest t...

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Vydáno v:IET circuits, devices & systems Ročník 14; číslo 1; s. 107 - 114
Hlavní autoři: Humood, Khaled, Mohammad, Baker, Abunahla, Heba, Azzam, Anas
Médium: Journal Article
Jazyk:angličtina
Vydáno: Stevenage The Institution of Engineering and Technology 01.01.2020
John Wiley & Sons, Inc
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ISSN:1751-858X, 1751-8598, 1751-8598
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Abstract This study presents a novel hybrid memristor (MR)-complementary metal–oxide–semiconductor-based flash analogue-to-digital converter (ADC). The speed and efficiency of the ADC are important aspects that can significantly affect the overall system performance. The flash ADC is considered the fastest type of ADCs; however, its performance is affected by the resistor mismatch. The proposed flash ADC is the first to use tunable MR to replace conventional resistor to generate accurate reference voltages. This is achieved by utilising the highly analogue behaviour observed in multi-state MR devices fabricated and tested by the authors' group. The electrical parameters of the devices have been extracted by device characterisation, then the voltage-threshold adaptive model (VTEAM) has been used to develop a correlated mathematical and Simulation Program with Integrated Circuit Emphasis (SPICE) device model. The proposed MR-based flash-ADC design solves the issue of resistor mismatch that results in encoding errors by the ability to tune the MR resistance value post-processing. Moreover, being a nanoscale component, the usage of MR significantly improves the area efficiency of the target ADC. Furthermore, the proposed design has improved the ADC transfer function characteristic and has lower differential non-linearity and integral non-linearity errors compared with the conventional design.
AbstractList This study presents a novel hybrid memristor (MR)-complementary metal–oxide–semiconductor-based flash analogue-to-digital converter (ADC). The speed and efficiency of the ADC are important aspects that can significantly affect the overall system performance. The flash ADC is considered the fastest type of ADCs; however, its performance is affected by the resistor mismatch. The proposed flash ADC is the first to use tunable MR to replace conventional resistor to generate accurate reference voltages. This is achieved by utilising the highly analogue behaviour observed in multi-state MR devices fabricated and tested by the authors' group. The electrical parameters of the devices have been extracted by device characterisation, then the voltage-threshold adaptive model (VTEAM) has been used to develop a correlated mathematical and Simulation Program with Integrated Circuit Emphasis (SPICE) device model. The proposed MR-based flash-ADC design solves the issue of resistor mismatch that results in encoding errors by the ability to tune the MR resistance value post-processing. Moreover, being a nanoscale component, the usage of MR significantly improves the area efficiency of the target ADC. Furthermore, the proposed design has improved the ADC transfer function characteristic and has lower differential non-linearity and integral non-linearity errors compared with the conventional design.
Author Abunahla, Heba
Mohammad, Baker
Azzam, Anas
Humood, Khaled
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  fullname: Azzam, Anas
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Issue 1
Keywords memristors
analogue behaviour
voltage-threshold adaptive model
MR resistance value post-processing
chip tunable MR-based flash-ADC converter
circuit simulation
digital signal
ADC transfer function characteristic
Cadence circuit simulator
digital central processing unit
analogue-digital conversion
electronic engineering computing
multistate MR devices
artificial intelligence
hybrid memristor
Simulation Program with Integrated Circuit Emphasis device model
integral nonlinearity errors
electrical parameters
transfer functions
flash-ADC design
comparators (circuits)
flash analogue-to-digital converter
Language English
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Snippet This study presents a novel hybrid memristor (MR)-complementary metal–oxide–semiconductor-based flash analogue-to-digital converter (ADC). The speed and...
This study presents a novel hybrid memristor (MR)‐complementary metal–oxide–semiconductor‐based flash analogue‐to‐digital converter (ADC). The speed and...
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SubjectTerms ADC transfer function characteristic
Analog to digital conversion
Analog to digital converters
analogue behaviour
analogue-digital conversion
Artificial intelligence
Cadence circuit simulator
chip tunable MR-based flash-ADC converter
circuit simulation
CMOS
comparators (circuits)
digital central processing unit
digital signal
Efficiency
electrical parameters
Electrical properties
electronic engineering computing
Errors
flash analogue-to-digital converter
flash-ADC design
hybrid memristor
integral nonlinearity errors
Integrated circuits
Internet of Things
Linearity
Mathematical models
Memristors
Mismatch (electrical)
MR resistance value post-processing
multistate MR devices
Research Article
Resistors
Simulation
Simulation Program with Integrated Circuit Emphasis device model
Transfer functions
voltage-threshold adaptive model
Title On-chip tunable Memristor-based flash-ADC converter for artificial intelligence applications
URI http://digital-library.theiet.org/content/journals/10.1049/iet-cds.2019.0293
https://onlinelibrary.wiley.com/doi/abs/10.1049%2Fiet-cds.2019.0293
https://www.proquest.com/docview/3092276674
Volume 14
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