相補型デルタアナログ-デジタル変換器の性能改善に向けた積分器の導入

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  • ソウホガタ デルタアナログ デジタル ヘンカンキ ノ セイノウ カイゼン ニ ムケタ セキブンキ ノ ドウニュウ
  • Introduction of an SFQ integrator for improvement of complementary delta analog-to-digital converters

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We have studied the development of an SFQ integrator for improvement of complementary delta analog-to-digital converters. The complementary delta analog-to-digital converter which is incorporated the SFQ integrator makes it possible to improve the SNR about 20dB. Then, we demonstrated the integrator and the decimation filter which is digital circuits of the complementary delta ADC. As a result, the circuits operated up to 6.5 GHz. Furthermore, we successfully demonstrated the complementary delta analog-to-digital converter which is incorporated an SFQ integrator.

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