5 Gsps Oversampling Analog-to-Digital Converters with Polarity Alternating Feedback Comparator (Special Issue on Ultra-High-Speed IC and LSI Technology)
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概要
- 論文の詳細を見る
We fabricated and evaluated a second-order ΣΔ ADC with a polarity alternating feedback (PAF) comparator based on 0.4μm InGaP/InGaAs enhancement and depletion mode high electron mobility transistors (E/D HEMT) technology. We propose a PAF technique for enhancing the sampling frequency and have applied the technique in the design of ADC circuit. The ADC has a signal-to-noise ratio (SNR) of 43dB when operating at a differential clock frequency of 4.9 GHz, and has a power dissipation of 400 mW.
- 社団法人電子情報通信学会の論文
- 1999-03-25
著者
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NIHEI Mizuhisa
Fujitsu Limited
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Olmos Alfredo
Sao Paulo University
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Nihei M
Fujitsu Laboratories Ltd.
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Nihei Mizuhisa
Fujitsu Laboratories Ltd.
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WATANABE Yuu
Fujitsu Laboratories Ltd.
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MIYASHITA Takumi
Fujitsu Laboratories Ltd.
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