Analog-to-digital converter based on RSFQ technology for radio astronomy applications

被引：4
|
作者：
Maezawa, M [1 ]
Suzuki, M [1 ]
Sasaki, H [1 ]
Shoji, A [1 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2001年 / 14卷 / 12期
关键词：
D O I：
10.1088/0953-2048/14/12/326
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We are developing an analog-to-digital converter (ADC) based on rapid single-flux quantum technology for radio-astronomic spectroscopy applications where very wide bandwidth is required and relatively small resolution is sufficient. The ADC consists of periodic-flash comparators, a demultiplexer and output drivers; and is sufficiently simple to be implemented on a single chip using a conventional 2-3 mum Nb trilayer technology. A 2-bit ADC has been designed for operation at 16 GHz of the sampling frequency. All the subsystems of the ADC have been fabricated using standard 1.6 kA cm(-2) Nb/AlOx/Nb technology and have been successfully tested.
引用
收藏
页码：1106 / 1110
页数：5
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