A/D converter
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United States of America Patent
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-
Apr 1, 2003
Grant Date -
Aug 15, 2002
app pub date -
Dec 13, 2001
filing date -
Dec 18, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An A/D converter including a counter for counting a clock signal to output a digital signal corresponding to an analog input signal; a D/A converter for converting the output signal of the counter into an analog signal; a comparator for comparing the analog input signal with the output signal of the D/A converter to control the counter in accordance with the comparison result; and a clock supply circuit for supplying the counter with the clock signal, wherein the frequency of the clock signal is changed in accordance with a difference signal exhibiting the difference between the analog input signal and the output signal of the D/A converter.
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