Wide input range, reconfigurable time-to-digital converter for electrical impedance spectroscopy applications = 임피던스 스펙트로스코피를 위한 넓은 입력 범위의 재구성 가능 시간-디지털 변환기

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This paper proposes a novel architecture of time-to-digital converter (TDC) with wide input range for phase quantization in polar demodulators for electrical impedance spectroscopy (EIS) systems. The proposed TDC combines a counter-based TDC with cascaded fine stages and efficiently quantizes the phase component. Measurement results of the proposed TDC shows maximum phase error of 0.72 degrees from 1 kHz to 512 kHz input frequency and maximum phase error of 2.70 degrees when it covers up to 2.048 MHz, which is competitive to previous reported ones. Reconfigurability of interpolation factor and cascaded architecture greatly enhances hardware efficiency of the system with average power consumption of 7.5mW, which makes this work worth for system-on-chip (SoC) realization of EIS systems based on polar demodulators.
Advisors
Yoo, Hyung-Jounresearcher유형준researcher
Description
한국과학기술원 :전기및전자공학부,
Publisher
한국과학기술원
Issue Date
2017
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학부, 2017.2,[v, 78 p. :]

Keywords

electrical impedance spectroscopy (EIS); polar demodulator; portable; reconfigurable; time interpolation; time-to-digital converter (TDC); wide-range; 전기 임피던스 스펙트로스코피 (EIS); 극 복조법; 이동성; 재구성 가능; 시간 증폭; 시간-디지털 변환기 (TDC); 넓은 범위

URI
http://hdl.handle.net/10203/243293
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=675401&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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