Superconductor analog-to-digital converters
Superconductor analog-to-digital converters
复制标题
超导模数转换器
DOI：
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发表时间：
2004
影响因子：
20.6
通讯作者：
V. Semenov
中科院分区：
文献类型：
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作者：
O. Mukhanov;D. Gupta;A. Kadin;V. Semenov
低温超导电路的超快开关速度、低功耗、磁通量自然量化、量子精度和低噪声使得模拟域和数字域之间的数据转换能够快速、准确。这些集成电路基于快速单通量量子 (RSFQ) 逻辑，能够实现任何其他技术无法达到的性能水平。目前正在开发两大类超导模数转换器 (ADC)：奈奎斯特采样转换器和过采样转换器。已使用低温超导器件技术演示了具有 /spl sim/20 GHz 及以上速率数字采样的完整系统。一些 ADC 组件也已使用高温超导体实现。超导 ADC 在真正的数字射频通信、宽带仪器和数字传感器读出中具有独特的应用。回顾了他们的设计、测试结果和未来的发展趋势。
Ultrafast switching speed, low power, natural quantization of magnetic flux, quantum accuracy, and low noise of cryogenic superconductor circuits enable fast and accurate data conversion between the analog and digital domains. Based on rapid single-flux quantum (RSFQ) logic, these integrated circuits are capable of achieving performance levels unattainable by any other technology. Two major classes of superconductor analog-to-digital converters (ADCs) are being developed - Nyquist sampling and oversampling converters. Complete systems with digital sampling at rates of /spl sim/20 GHz and above have been demonstrated using low-temperature superconductor device technology. Some ADC components have also been implemented using high-temperature superconductors. Superconductor ADCs have unique applications in true digital-RF communications, broadband instrumentation, and digital sensor readout. Their designs, test results, and future development trends are reviewed.