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Analog-to-digital converter

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专利汇可以提供Analog-to-digital converter专利检索,专利查询,专利分析的服务。并且PURPOSE: To make it possible to constitute an analog-digital converter as a monolithic integrated circuit excellently while removing the phase delay of an integrator output and the conversion error of a comparator output in a short time and with high precision, by providing a calibration period for integrating the 2nd reference voltage.
CONSTITUTION: The phase lag of an output to the step input variation of the integrator is determined only by the gain of the integrator and frequency characteristics of the gain. In the A/D converter, direct-current amplifier 1, resistance R and capacitor C constitute integrating circuit INT, and R is supplied with input voltage VIN and two reference voltages -VR and VR via electronic switches S
1 to S
3 . The A/D converter consists of comparator 2, control circuit 3, up-down counter 4, etc. Further, the precision of the 2nd reference voltage VR can be lowered without influencing the precision of the entire A/D conversion as integration period T
3 for the removal of an error.
COPYRIGHT: (C)1979,JPO&Japio,下面是Analog-to-digital converter专利的具体信息内容。

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