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A single-electrode capacitive sensor using incremental delta-sigma architecture
- Authors
- Jung, Youngjae; Duan, Quanzhen; Roh, Jeongjin
- Issue Date
- Aug-2013
- Publisher
- SPRINGER
- Keywords
- Capacitance-to-digital converter; Delta-sigma modulator; Capacitive sensor; Incremental ADC
- Citation
- ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, v.76, no.2, pp.261 - 265
- Indexed
- SCIE
SCOPUS
- Journal Title
- ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
- Volume
- 76
- Number
- 2
- Start Page
- 261
- End Page
- 265
- ISSN
- 0925-1030
- Abstract
- This paper presents a single-electrode capacitive sensor using a single-bit second-order incremental delta-sigma architecture. In order to achieve high accuracy in this capacitance-to-digital converter (CDC), the shielding signal and the digitally controlled offset capacitors are used in combination with the delta-sigma CDC. The designed sensor is suitable for capacitive transducers for +/- 10 pF input range with sub-fF resolution.
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Related Researcher
- Roh, Jeong jin
- ERICA 공학대학 (SCHOOL OF ELECTRICAL ENGINEERING)