| Presentation | 2017-08-09 Design of Digital SQUID using sub-SFQ Feedback with High Sampling Rate Kosuke Okabe, Masato Naruse, Tohru Taino, Hiroaki Myoren, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Digital SQUIDs based on single-flux quantum (SFQ) logic have attractive characteristics such as wide dynamic ranges and high slew rates. To realize lower magnetic field noise by magnetometers using digital SQUIDs, we have adopted two feedback combinations: one utilizing the SFQ input/output for a main loop and the other using a mutually coupled loop. The main loop receives direct flux quantum feedback and sub-flux quantum feedback /n where n is an integer, from the mutually coupled loop. For generating feedback SFQ pulses we use an up/down counter and its latency and time for generating SFQ pule train limits high-frequency operation of the digital SQUID. In this study, we designed an up/down counter with low latency and used a multi-flux quantum generator for fast SFQ pulse train generation for the digital SQUID with high sampling rate. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | digital SQUID / Single flux quantum (SFQ) circuit / sub-SFQ feedback / dynamic range |
| Paper # | SCE2017-19 |
| Date of Issue | 2017-08-02 (SCE) |
| Conference Information | |
| Committee | SCE |
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| Conference Date | 2017/8/9(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Univ. (Higashiyama Campus) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal processing technologies and their applications, etc. |
| Chair | Hiroaki Myoren(Saitama Univ.) |
| Vice Chair | |
| Secretary | (National Defense Academy) |
| Assistant | Hiroyuki Akaike(Daido Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Superconductive Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of Digital SQUID using sub-SFQ Feedback with High Sampling Rate |
| Sub Title (in English) | |
| Keyword(1) | digital SQUID |
| Keyword(2) | Single flux quantum (SFQ) circuit |
| Keyword(3) | sub-SFQ feedback |
| Keyword(4) | dynamic range |
| 1st Author's Name | Kosuke Okabe |
| 1st Author's Affiliation | Saitama University(Saitama Univ.) |
| 2nd Author's Name | Masato Naruse |
| 2nd Author's Affiliation | Saitama University(Saitama Univ.) |
| 3rd Author's Name | Tohru Taino |
| 3rd Author's Affiliation | Saitama University(Saitama Univ.) |
| 4th Author's Name | Hiroaki Myoren |
| 4th Author's Affiliation | Saitama University(Saitama Univ.) |
| Date | 2017-08-09 |
| Paper # | SCE2017-19 |
| Volume (vol) | vol.117 |
| Number (no) | SCE-171 |
| Page | pp.pp.49-53(SCE), |
| #Pages | 5 |
| Date of Issue | 2017-08-02 (SCE) |