A Digital Capacitance Comparator

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概要

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• The novel switched-capacitor interface circuit called digital capacitance comparator which converts from the deviation between the value of reference capacitance and the unknown value of capacitance, manufactured in a factory, to output frequency is proposed. Whole circuit operation is insensitive to the parasitic resistance connected pararell with the capacitor under comparating, and offset voltages and open loop gains of op-amps. Parasitic capacitances between each node and ground and clock feedthrough charge caused by analog switches can also be easily calibrated. Therefore, proposed interface can be operated exactly.

• 沼津工業高等専門学校の論文
• 1990-01-30

著者

• Matsumoto H

  沼津工業高等専門学校

• MATSUMOTO Hiroki

  沼津工業高等専門学校

• NATSUME Masaki

  旭化成(株)

関連論文

• A Digital Capacitance Comparator
• A Quasi-Passive Switched-Capacitor Frequency-to-Voltage Converter
• A Comparator-Based Switched-Capacitor Voltage-to-Frequency Converter

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