High T_c Superconducting Flash A/D Converter Using Planar Quasi-One Junction Superconducting Quantum Interference Devices (SQUIDs)

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概要

• 論文の詳細を見る

• We have designed and fabricated a planar HTS (DyBaCuO) superconducting quasi-one junction (QOS) Superconducting Quantum Interference Device (SQUID) for a flash A/D converter using step-edge Josephson junctions. The simulation suggests that the HTS QOS bandwidth is limited with 2.6 GHz by an external shunted capacitor. To fabricate a 1-2 μm size SQUID inductance hole and step-edge junctions, a stepper photo-lithography process was employed. To make a sensitive comparator, a flux transformer was directly installed on the QOS, whose magnetic field gain of 833 was in agreement with the designed value of 828. The basic analog to digital conversion test of the QOS comparator was confirmed at a frequency of 10kHz-1MHz at 77K. The dynamic range was estimated as 2Φ_O.

• 社団法人応用物理学会の論文
• 1996-08-01

著者

• FUJITA Tadashige

  Teratec Corporation, Research and Development Department 1

• Higashino Yasushi

  Teratec Corporation

• Umezawa Toshimasa

  Teratec Corporation

• Fujita Tadashige

  Teratec Corporation

関連論文

• Track/Hold Circuit in GaAs HBT Process (Special Section of Selected Papers from the 9th Karuizawa Workshop on Circuits and Systems)
• Magnetic Flux Focusing in DyBaCuO Step-Edge Josephson Junctions
• High T_c Superconducting Flash A/D Converter Using Planar Quasi-One Junction Superconducting Quantum Interference Devices (SQUIDs)

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