Digital-to-analog converter with linear amplification rate
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United States of America Patent
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Dec 14, 2004
Grant Date -
Jun 19, 2003
app pub date -
Aug 7, 2002
filing date -
Dec 18, 2001
priority date (Note) -
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Abstract
Digital-to-analog converters are disclosed that include a complementary metal-oxide semiconductor (CMOS) image sensor, which can control the brightness of a stored image delicately. The digital-to-analog converter includes: an array of resistors with weights on their resistance value, to distribute a voltage delicately and develop a plurality of analog signals; a switching circuit to select and output one of the analog signals of the arrayed resistors in response to a digital control code; and an output circuit to buffer and develop the output of the switching circuit.
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