A BIST Scheme for Dynamic Comparators

This paper proposes a built-in self-test (BIST) scheme for detecting catastrophic faults in dynamic comparators. In this scheme, a feedback loop is designed using the characteristics of the comparator; monitoring the voltage in the feedback loop can determine the presence of a circuit fault. The pro...

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Main Authors: Xiao-Bin Tang, Masayoshi Tachibana
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/11/24/4169
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author Xiao-Bin Tang
Masayoshi Tachibana
author_facet Xiao-Bin Tang
Masayoshi Tachibana
author_sort Xiao-Bin Tang
collection DOAJ
description This paper proposes a built-in self-test (BIST) scheme for detecting catastrophic faults in dynamic comparators. In this scheme, a feedback loop is designed using the characteristics of the comparator; monitoring the voltage in the feedback loop can determine the presence of a circuit fault. The proposed BIST scheme and the circuit under testing are realized at the transistor level. The proposed BIST scheme was simulated using HSPICE. The simulated fault coverage is approximately 87.8% with 90 test circuits. To further verify the effectiveness of the proposed BIST scheme, six faults were injected into the real circuit. The test results were consistent with the simulation results.
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spelling doaj.art-bc07be6bb48a40b4926dc0892686359b2023-11-24T14:31:30ZengMDPI AGElectronics2079-92922022-12-011124416910.3390/electronics11244169A BIST Scheme for Dynamic ComparatorsXiao-Bin Tang0Masayoshi Tachibana1Electronic and Photonic Systems Engineering Course, Department of Engineering, Graduate School of Enginering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi 782-8502, JapanElectronic and Photonic Systems Engineering Course, Department of Engineering, Graduate School of Enginering, Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi 782-8502, JapanThis paper proposes a built-in self-test (BIST) scheme for detecting catastrophic faults in dynamic comparators. In this scheme, a feedback loop is designed using the characteristics of the comparator; monitoring the voltage in the feedback loop can determine the presence of a circuit fault. The proposed BIST scheme and the circuit under testing are realized at the transistor level. The proposed BIST scheme was simulated using HSPICE. The simulated fault coverage is approximately 87.8% with 90 test circuits. To further verify the effectiveness of the proposed BIST scheme, six faults were injected into the real circuit. The test results were consistent with the simulation results.https://www.mdpi.com/2079-9292/11/24/4169built-in self-testfault diagnosisdynamic comparator
spellingShingle Xiao-Bin Tang
Masayoshi Tachibana
A BIST Scheme for Dynamic Comparators
Electronics
built-in self-test
fault diagnosis
dynamic comparator
title A BIST Scheme for Dynamic Comparators
title_full A BIST Scheme for Dynamic Comparators
title_fullStr A BIST Scheme for Dynamic Comparators
title_full_unstemmed A BIST Scheme for Dynamic Comparators
title_short A BIST Scheme for Dynamic Comparators
title_sort bist scheme for dynamic comparators
topic built-in self-test
fault diagnosis
dynamic comparator
url https://www.mdpi.com/2079-9292/11/24/4169
work_keys_str_mv AT xiaobintang abistschemefordynamiccomparators
AT masayoshitachibana abistschemefordynamiccomparators
AT xiaobintang bistschemefordynamiccomparators
AT masayoshitachibana bistschemefordynamiccomparators