Mixed-signal integrated circuits for neuromorphic computing

In neuromorphic computing, the traditional von Neumann architecture faces efficiency bottlenecks due to the frequent data transfers between memory and processors. This limitation has provided an opportunity for the development of IMC architectures. RRAM, as a mature non-volatile memory device, is wi...

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Main Author: Yu, Quanhan
Other Authors: Kim Tae Hyoung
Format: Thesis-Master by Coursework
Language:English
Published: Nanyang Technological University 2025
Subjects:
Online Access:https://hdl.handle.net/10356/182693
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author Yu, Quanhan
author2 Kim Tae Hyoung
author_facet Kim Tae Hyoung
Yu, Quanhan
author_sort Yu, Quanhan
collection NTU
description In neuromorphic computing, the traditional von Neumann architecture faces efficiency bottlenecks due to the frequent data transfers between memory and processors. This limitation has provided an opportunity for the development of IMC architectures. RRAM, as a mature non-volatile memory device, is widely used in IMC architectures and can accommodate an intrinsic impedance boosting technique to effectively suppress output distortion. This paper presents the design of mixed-signal integrated circuits to convert the MAC computation results of an RRAM array into digital outputs. The integrated circuit utilizes an 8-bit SAR ADC structure, designed on a 40nm technology node using Cadence, which can achieve a sampling rate of 66.7 MHz. Under simulation conditions of 27°C and a 1 V power supply, the designed ADC achieved an ENOB of 7.80 bits, a DNL of +0.4/-0.2, and an INL of +0.4/-0.3. The total power consumption was measured at 89.18 µW, with the FOMW and FOMS reaching 6 fJ/conv-step and 167.46 dB, respectively.
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spelling ntu-10356/1826932025-02-21T15:48:58Z Mixed-signal integrated circuits for neuromorphic computing Yu, Quanhan Kim Tae Hyoung School of Electrical and Electronic Engineering THKIM@ntu.edu.sg Engineering Neuromorphic computing RRAM SAR ADC In neuromorphic computing, the traditional von Neumann architecture faces efficiency bottlenecks due to the frequent data transfers between memory and processors. This limitation has provided an opportunity for the development of IMC architectures. RRAM, as a mature non-volatile memory device, is widely used in IMC architectures and can accommodate an intrinsic impedance boosting technique to effectively suppress output distortion. This paper presents the design of mixed-signal integrated circuits to convert the MAC computation results of an RRAM array into digital outputs. The integrated circuit utilizes an 8-bit SAR ADC structure, designed on a 40nm technology node using Cadence, which can achieve a sampling rate of 66.7 MHz. Under simulation conditions of 27°C and a 1 V power supply, the designed ADC achieved an ENOB of 7.80 bits, a DNL of +0.4/-0.2, and an INL of +0.4/-0.3. The total power consumption was measured at 89.18 µW, with the FOMW and FOMS reaching 6 fJ/conv-step and 167.46 dB, respectively. Master's degree 2025-02-17T08:23:02Z 2025-02-17T08:23:02Z 2024 Thesis-Master by Coursework Yu, Q. (2024). Mixed-signal integrated circuits for neuromorphic computing. Master's thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/182693 https://hdl.handle.net/10356/182693 en application/pdf Nanyang Technological University
spellingShingle Engineering
Neuromorphic computing
RRAM
SAR ADC
Yu, Quanhan
Mixed-signal integrated circuits for neuromorphic computing
title Mixed-signal integrated circuits for neuromorphic computing
title_full Mixed-signal integrated circuits for neuromorphic computing
title_fullStr Mixed-signal integrated circuits for neuromorphic computing
title_full_unstemmed Mixed-signal integrated circuits for neuromorphic computing
title_short Mixed-signal integrated circuits for neuromorphic computing
title_sort mixed signal integrated circuits for neuromorphic computing
topic Engineering
Neuromorphic computing
RRAM
SAR ADC
url https://hdl.handle.net/10356/182693
work_keys_str_mv AT yuquanhan mixedsignalintegratedcircuitsforneuromorphiccomputing