DIFFERENTIAL SWITCH DRIVE CIRCUIT AND CURRENT STEERING DIGITAL-TO-ANALOG CONVERTER
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United States of America Patent
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app pub date -
Dec 18, 2013
filing date -
Jun 23, 2011
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Abandoned
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Abstract
A differential switch drive circuit includes a current source, a current control circuit including a pair of transistors having a pair of differential input terminals, a pair of differential output terminals for outputting differential output voltages, and a common connection node connected to the current source, and load elements each connected to a corresponding one of the pair of differential output terminals. Currents flowing through the pair of transistors are controlled so that the sum of currents flowing through the load elements during a steady state of the differential output voltages is different from the sum of currents flowing through the load elements during a transient state of the differential output voltages.
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