Presentation 2006-01-27
A novel resonant tunneling delta-sigma AD converter suitable for high frequency operation
Koichi MAEZAWA, Wataru MATSUBARA, Koki FURUKAWA, Takashi MIZUTANI,
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Abstract(in English) A ΔΣ modulator using a frequency modulation intermediate signal was demonstrated using a resonant tunneling logic gate MOBILE. This ΔΣ modulator is based on the nature of an FM signal and suitable for high speed operation. Experiments using an InP-based MOBILE demonstrate good noise shaping characteristics. Moreover, the operation with a higher FM carrier frequency than the sampling frequency was demonstrated, which shows a good noise shaping as well as the previous one. This makes the design of the voltage controlled oscillator, which is a key component of the FM ΔΣ modulator, much easier. We have also discussed how to increase the order of the FM ΔΣ modulator using MOBILEs. Consequently, an FM ΔΣ modulator using MOBILE is promising for high resolution, wide band A/D converters.
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Keyword(in English) resonant tunneling / ADC / HEMT / InP / Delta Sigma modulator
Paper # ED2005-237,SDM2005-249
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Committee ED
Conference Date 2006/1/20(1days)
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Registration To Electron Devices (ED)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A novel resonant tunneling delta-sigma AD converter suitable for high frequency operation
Sub Title (in English)
Keyword(1) resonant tunneling
Keyword(2) ADC
Keyword(3) HEMT
Keyword(4) InP
Keyword(5) Delta Sigma modulator
1st Author's Name Koichi MAEZAWA
1st Author's Affiliation Graduate School of Engineering, Nagoya University()
2nd Author's Name Wataru MATSUBARA
2nd Author's Affiliation Graduate School of Engineering, Nagoya University
3rd Author's Name Koki FURUKAWA
3rd Author's Affiliation Graduate School of Engineering, Nagoya University
4th Author's Name Takashi MIZUTANI
4th Author's Affiliation Graduate School of Engineering, Nagoya University
Date 2006-01-27
Paper # ED2005-237,SDM2005-249
Volume (vol) vol.105
Number (no) 550
Page pp.pp.-
#Pages 6
Date of Issue