2017 Fiscal Year Final Research Report
Study on Stochastic Flash A-to-D Converter Design and Its Implementation
| Project/Area Number |
15K06048
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Kitami Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
吉澤 真吾 北見工業大学, 工学部, 准教授 (20447080)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 確率的フラッシュAD変換器 / 一様確率密度関数の合成 / 線形化 / 量子化雑音の無相関化 / 設計理論 / 回路シミュレーション |
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| Outline of Final Research Achievements |
We have proposed a design methodology for "Stochastic Flash A-to-D Converter (SFADC)", which is known as a kind of high-speed ADC, robust against processing variations under nanoscale integration.
First, we clarified the issues in comparators for SFADC and showed its design procedure. Then we proposed a linearization method to synthesize uniform distribution from the distribution of threshold voltages of comparators. In SFADC, we at the first time pointed out that decorrelation of quantization noise is important and proposed a decorrelation method and its circuit implementation. We designed the SFADC, with the above proposed mtehods, as an LSI and verified by
circuit simulation for the effectiveness of the proposed design method.
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| Free Research Field |
通信・ネットワーク工学
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