Method and apparatus for improving the accuracy and resolution of an analog-to-digital converter (ADC)
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United States of America Patent
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Dec 1, 1987
Issued Date -
N/A
app pub date -
May 7, 1985
filing date -
Mar 9, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for increasing the accuracy and resolution of an ADC comprising a digital filter connected to the output of the ADC, a system clock for providing a digital filter clock signal, a low/pass filter/amplifier for generating a large-scale, rapidly varying dither signal fdrom the digital filter clock signal, and a summing circuit for adding the dither signal to a test signal connected to the input of the ADC.
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