Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2000.07b
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- Pages.587-590
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- 2000
A Switched-Capacitor Interface for Differential Capacitance Transducers
- Ogawa, Satomi (Research Institute of Electronics, Shizuoka University) ;
- Ohura, Takao (Research Institute of Electronics, Shizuoka University) ;
- Oisugi, Yutaka (Chiba Precision) ;
- Watanabe, Kenzo (Research Institute of Electronics, Shizuoka University)
- Published : 2000.07.01
Abstract
For high-accuracy signal processing of differential capacitance transducers, an interface circuitry based on a switched-capacitor sample/hold circuit is developed. Driven by nonoverlapping two-phase clocks, the interface produces the output voltage which is proportional to the ratio of difference-to-sum of two capacitors of a differential transducer. Performances of a prototype chip fabricated using 0.6
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