지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.12 No.3
- 발행연도
- 2012.9
- 수록면
- 278 - 285 (8page)
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초록· 키워드
오류제보하기
A digital readout IC for capacitive sensors is presented. Digital capacitance readout circuits suffer from static capacitance of sensors, especially single-ended sensors, and require large passive elements to cancel such DC offset signal. For this reason, to maximize a dynamic range with a small die area, the proposed circuit features digital filters having a coarse and fine compensation steps. Moreover, by employing switched-capacitor circuit for the front-end, correlated double sampling (CDS) technique can be adopted to minimize low-frequency device noise. The proposed circuit targeted 8-㎑ signal bandwidth and oversampling ratio (OSR) of 64, thus a 3<SUP>rd</SUP>-order ΔΣ modulator operating at 1 ㎒ was used for pulse-density-modulated (PDM) output. The proposed IC was designed in a 0.18-㎛ CMOS mixed-mode process, and occupied 0.86 × 1.33 ㎟. The measurement results shows suppressed DC power under about -30 ㏈FS with minimized device flicker noise.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. ARCHITECTURE
Ⅲ. CIRCUIT DESCREPTION
Ⅳ. MEASUREMENT RESULTS
Ⅴ. CONCLUSIONS
ACKNOWLEDGMENTS
REFERENCES
참고문헌 (9)
참고문헌 신청
1. [학술지(정기간행물)] - Xiaodan Zou / 2009 / A 1-V 450-nW Fully Integrated Programmable Biomedical Sensor Interface Chip / J. of Solid-State Circuits : 1067 ~ 1077
2. [학술대회논문] - Jelena Čitaković / 2009 / A Compact CMOS MEMS Microphone with 66dB SNR / IEEE Int. Solid-State Circuit Conf. Dig. Tech. Paper : 350 ~ 351
3. [학술대회논문] - Hashem Zare-Hoseini / 2010 / A Low-Power Continuous-Time UΣ Modulator for Electret Microphone Applications / IEEE Asian Solid-State Circuit Conf
4. [학술대회논문] - Hyoung-Rae Kim / 2010 / A Mobile-Display-Driver IC Embedding a Capacitive-Touch-Screen Controller System / IEEE Int. Solid-State Circuit Conf. Dig. Tech. Paper : 114 ~ 115
5. [학술대회논문] - Christian C. ENZ / 1996 / Circuit Techniques for Reducing the Effects of Op-Amp Imperfections: Autozeroing, Correlated Double Sampling, and Chopper Stabilization / Proceedings of the IEEE : 1584 ~ 1614
2. [학술대회논문] - Jelena Čitaković / 2009 / A Compact CMOS MEMS Microphone with 66dB SNR / IEEE Int. Solid-State Circuit Conf. Dig. Tech. Paper : 350 ~ 351
3. [학술대회논문] - Hashem Zare-Hoseini / 2010 / A Low-Power Continuous-Time UΣ Modulator for Electret Microphone Applications / IEEE Asian Solid-State Circuit Conf
4. [학술대회논문] - Hyoung-Rae Kim / 2010 / A Mobile-Display-Driver IC Embedding a Capacitive-Touch-Screen Controller System / IEEE Int. Solid-State Circuit Conf. Dig. Tech. Paper : 114 ~ 115
5. [학술대회논문] - Christian C. ENZ / 1996 / Circuit Techniques for Reducing the Effects of Op-Amp Imperfections: Autozeroing, Correlated Double Sampling, and Chopper Stabilization / Proceedings of the IEEE : 1584 ~ 1614
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