LOW SUPPLY CLASS AB OUTPUT AMPLIFIER
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United States of America Patent
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app pub date -
Jun 30, 2016
filing date -
Jun 30, 2016
priority date (Note) -
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Abstract
An apparatus is provided which comprises: a differential input amplifying stage including a current source and a first node; a first matched pair of transistors coupled to the first node, wherein one of the transistors of the first matched pair is coupled to an output node of a driving stage; a second matched pair of transistors coupled to a second node to bias the second matched pair of transistors, wherein one of the transistors of the second matched pair of transistors is coupled to the output node of the driving stage, and wherein the second node is to be charged according to a first bias of the current source; and a resistive device coupled to the first and second nodes.
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