An Ultrahigh-Speed Resonant-Tunneling Analog-to-Digital Converter(<特集>Special Issue on Signals, Systems and Electronics Technology)

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概要

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• A flash analog-to-digital converter (ADC) that uses resonant-tunneling complex gates is proposed. The ternary quantizers, consisting of monostable-to-multistable transition logic (MML) circuits, convert the analog input signal into the ternary thermometer code. This code is then converted into the binary Gray-code output by a multiple-valued multiple-input monostable-bistable transition logic element (M^2-MOBILE). By assuming InP-based resonant-tunneling diode (RTD) and heterojunction field-effect transistor technology, we have carried out SPICE simulation that demonstrates a 4-bit, 10-GS/s ADC operation. The input bandwidth, defined as a frequency at which the effective number of bit decreases by 0.5 LSB, was also estimated to be 500 MHz. Compact circuit configuration, which is due to the combination of MML and M^2-MOBILE, reduces the device count and power dissipation by a factor of two compared with previous RTD-based ADCs.

• 社団法人電子情報通信学会の論文
• 2002-03-01

著者

• Waho Takao

  Department Of Electrical And Electronics Engineering Faculty Of Science And Technology Sophia Univer

• HATTORI Kazufumi

  Department of Electrical and Electronics Engineering, Faculty of Science and Technology, Sophia Univ

• TAKAMATSU Yuuji

  Department of Electrical and Electronics Engineering, Faculty of Science and Technology, Sophia Univ

• Takamatsu Yuuji

  Department Of Electrical And Electronics Engineering Faculty Of Science And Technology Sophia Univer

• Hattori Kazufumi

  Department Of Electrical And Electronics Engineering Faculty Of Science And Technology Sophia Univer

関連論文

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• Design of Flash Analog-to-Digital Converters Using Resonant-Tunneling Circuits(New System Paradigms for Integrated Electronics)
• Novel 4RTD Logic Circuits(Nanomaterials and Quantum-Effect Devices, Fundamental and Application of Advanced Semiconductor Devices)
• A Design of HEMT Comparators for Ultrahigh-Speed A/D Conversion
• Periodical Memory Allocation Method Window Operation and Its Application to a VSLI Image Prosessor
• An Ultrahigh-Speed Resonant-Tunneling Analog-to-Digital Converter(Special Issue on Signals, Systems and Electronics Technology)
• Special Section on Fundamentals and Applications of Advanced Semiconductor Devices

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