Development of a Secure ADC Based on Beta Expansion

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K04518
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 21060:Electron device and electronic equipment-related
• Research Institution: Tokyo City University
• Principal Investigator: SAN HAO 東京都市大学, 理工学部, 教授 (30400774)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: AD変換器 / 集積回路技術 / 低電圧

Outline of Final Research Achievements

In this study, we developed a design technique for low-voltage non-binary analog-to-digital converters (ADCs). We developed low-voltage techniques for each analog element circuit integrated in the low-voltage ADC and successfully demonstrated the feasibility of the developed low-voltage circuitry through experimental verification. We established a noise analysis method, which is a technical challenge in low-voltage cyclic ADC design, and validated the validity of this noise analysis method through experimental verification. Furthermore, we established a system design methodology for ADCs that includes the aforementioned element techniques and confirmed the feasibility of low-voltage, high-precision ADCs based on the proposed approach, as well as the effectiveness of the proposed methodology through the results of experimental verification.

Free Research Field

電子デバイス・電子機器

Academic Significance and Societal Importance of the Research Achievements

IoTやAIの発展に伴い，自然界の物理情報をデジタル・データとして取得することは必要不可欠である．本研究では，物理情報をデジタル・データへ変換するAD変換に関連する基盤技術を開発した．低電圧で高精度AD変換の実現には，アナログ回路技術とデジタル信号処理技術を融合したシステム手法を提案し，提案手法の実現可能性と有効性を実証でき，物理情報に基づく信号処理技術・人工知能の発展に寄与でき，持続可能な社会の実現に貢献できた．