Design and Operation of 6-bit, 0.25-mVpp Quasi-sine Voltage Waveform Generator based on SFQ Pulse-frequency Modulation☆
Design and Operation of 6-bit, 0.25-mVpp Quasi-sine Voltage Waveform Generator based on SFQ Pulse-frequency Modulation☆
复制标题
基于SFQ脉冲频率调制的6位0.25mVpp准正弦电压波形发生器的设计与运行☆
DOI:
10.1016/j.phpro.2014.09.060
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Y. Mizugaki
中科院分区:
文献类型:
--
作者:
Yoshitaka Takahashi;H. Shimada;M. Maezawa;Y. Mizugaki
A digital-to-analogue converter (DAC) consisting of single-flux-quantum (SFQ) circuitry is known to generate accurate analogue voltages defined by the Josephson relationship. We have been developing SFQ-DACs of the pulse-frequency modulation (PFM) type. Toward voltage standard applications of SFQ-DACs, we have set the target values for the voltage amplitude and resolution at 20 mVppand 10 bits, respectively. So far, we have reported a 5-bit, 10-μVppquasi-sine voltage waveform generator comprising a PFM-type SFQ-DAC integrated with an on-chip digital code generator. Its small peak-to-peak voltage amplitude was due to the lack of an on-chip voltage multiplier (VM). In this paper, we present a 6-bit, 0.25-mVppquasi-sine voltage waveform generator integrated with a 10-fold VM. The resolution is improved by introducing efficient logic sequences into the SFQ-DAC.
DOI:
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发表时间:
2011
期刊:
Physica C : Superconductivity
影响因子:
--
作者:
斎藤淳;田中丈之;守屋雅隆;小林忠行;水柿義直;前澤正明
通讯作者:
前澤正明