Resistor string digital to analog converter
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United States of America Patent
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May 15, 2018
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N/A
app pub date -
Jul 28, 2017
filing date -
Jul 28, 2017
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Abstract
In some embodiments, a resistor string digital to analog converter (DAC) comprises a first plurality of resistors disposed in a first column. Each of the first plurality of resistors couples to an output of the first column via one of a first plurality of switches. The DAC also comprises a second plurality of resistors disposed in a second column. Each of the second plurality of resistors couples to an output of the second column via one of a second plurality of switches. The second plurality of resistors is configured to couple in series with the first plurality of resistors. A first row selection signal is to control a first switch of the first plurality of switches and a second switch of the second plurality of switches. The first switch corresponds to a first resistor disposed at a top of the first column, and the second switch corresponds to a second resistor disposed at a bottom of the second column.
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