A High-Speed Interface Based on a Josephson Latching Driver for Adiabatic Quantum-Flux-Parametron Logic
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- CHINA Fumihiro
- National Institute of Information and Communications Technology (NICT)
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- TAKEUCHI Naoki
- National Institute of Advanced Industrial Science and Technology (AIST)
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- SUZUKI Hideo
- Yokohama National University
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- YAMANASHI Yuki
- Yokohama National University
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- TERAI Hirotaka
- National Institute of Information and Communications Technology (NICT)
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- YOSHIKAWA Nobuyuki
- Yokohama National University
抄録
<p>The adiabatic quantum flux parametron (AQFP) is an energy-efficient, high-speed superconducting logic device. To observe the tiny output currents from the AQFP in experiments, high-speed voltage drivers are indispensable. In the present study, we develop a compact voltage driver for AQFP logic based on a Josephson latching driver (JLD), which has been used as a high-speed driver for rapid single-flux-quantum (RSFQ) logic. In the JLD-based voltage driver, the signal currents of AQFP gates are converted into gap-voltage-level signals via an AQFP/RSFQ interface and a four-junction logic gate. Furthermore, this voltage driver includes only 15 Josephson junctions, which is much fewer than in the case for the previously designed driver based on dc superconducting quantum interference devices (60 junctions). In measurement, we successfully operate the JLD-based voltage driver up to 4 GHz. We also evaluate the bit error rate (BER) of the driver and find that the BER is 7.92×10-10 and 2.67×10-3 at 1GHz and 4GHz, respectively.</p>
収録刊行物
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- IEICE Transactions on Electronics
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IEICE Transactions on Electronics E105.C (6), 264-269, 2022-06-01
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詳細情報
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- CRID
- 1390573726322226048
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- NII論文ID
- 130008124489
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- ISSN
- 17451353
- 09168524
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可