| Presentation | 2002/11/28 Superconducting Analog to Digital Converter for Wireless Communication Kazumasa TAKAGI, Futoshi FURUTA, Kazuo SAITOH, Yoshihisa SOUTOME, Akira TSUKAMOTO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A front-end circuit of analog-to-digital converter (ADC) consisting of a modulator, a demultiplexer (DEMUX) and amplifiers is designed and fabricated based on superconducting single flux quantum (SFQ) circuitry. In designing of the circuit, the length of transmission lines was determined so that a data signal arrives at the proper timing between clock signals even if the circuit parameters change. An on-chip-testing circuit was also designed to confirm the operation at 40 GHz. These circuits consisting of 2518 Josephson junctions were fabricated using NEC standard Nb process. Correct analog-to-digital conversion could be confirmed by comparing the readout 32-SFQ output signals to the level of dc input currents. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Superconductivity / Analog-to-digital converter / SFQ / On-chip-testing circuit / Nb |
| Paper # | SCE2002-21 |
| Date of Issue |
| Conference Information | |
| Committee | SCE |
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| Conference Date | 2002/11/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Superconducting Analog to Digital Converter for Wireless Communication |
| Sub Title (in English) | |
| Keyword(1) | Superconductivity |
| Keyword(2) | Analog-to-digital converter |
| Keyword(3) | SFQ |
| Keyword(4) | On-chip-testing circuit |
| Keyword(5) | Nb |
| 1st Author's Name | Kazumasa TAKAGI |
| 1st Author's Affiliation | Advanced Research Laboratory,Hitachi Ltd.() |
| 2nd Author's Name | Futoshi FURUTA |
| 2nd Author's Affiliation | Advanced Research Laboratory,Hitachi Ltd. |
| 3rd Author's Name | Kazuo SAITOH |
| 3rd Author's Affiliation | Advanced Research Laboratory,Hitachi Ltd. |
| 4th Author's Name | Yoshihisa SOUTOME |
| 4th Author's Affiliation | Advanced Research Laboratory,Hitachi Ltd. |
| 5th Author's Name | Akira TSUKAMOTO |
| 5th Author's Affiliation | Advanced Research Laboratory,Hitachi Ltd. |
| Date | 2002/11/28 |
| Paper # | SCE2002-21 |
| Volume (vol) | vol.102 |
| Number (no) | 480 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |