D/A conversion circuit, oscillator, electronic apparatus, and moving object
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United States of America Patent
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Dec 6, 2016
Grant Date -
Jul 21, 2016
app pub date -
Jan 14, 2016
filing date -
Jan 19, 2015
priority date (Note) -
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Abstract
A D/A conversion circuit includes a plurality of resistors that are connected to each other in series, and a plurality of MOS transistors that are connected to terminals of the plurality of resistors, respectively. The plurality of resistors and the plurality of MOS transistors are formed on a semiconductor substrate. Each of the plurality of resistors is constituted by a resistive element and a plurality of contacts provided in the resistive element. The plurality of MOS transistors are disposed so that a plurality of virtual straight lines that pass through each of the plurality of contacts and are perpendicular to a longitudinal direction of the resistive element pass between gate electrodes of two adjacent MOS transistors, when seen in a plan view of the semiconductor substrate.
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