Control circuit for low noise amplifier and related differential and single-ended amplification devices
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United States of America Patent
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Jul 5, 2016
Grant Date -
Nov 19, 2015
app pub date -
May 8, 2015
filing date -
May 14, 2014
priority date (Note) -
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Abstract
A circuit includes a first pair of transistors connected in parallel between a first node and a second node with a diode-connected transistor coupled to the second node. A second pair of transistors has current terminals connected at a third node. A first and second current sink transistors are connected in a current mirror configuration with the diode-connected transistor and further coupled to the third node. A first differential amplifier has an output coupled to control terminals of the first and third transistors and an input coupled to a further current node of the third transistor. A second differential amplifier has an output coupled to control terminals of the second and fourth transistors and an input coupled to a further current node of the fourth transistor.
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