METHOD FOR GENERATING A BIAS CURRENT FOR BIASING A DIFFERENTIAL PAIR OF TRANSISTORS AND CORRESPONDING INTEGRATED CIRCUIT
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United States of America
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May 29, 2019
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May 29, 2019
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Abstract
An operational amplifier integrated circuit includes a differential pair of transistors having a first input, a second input. A bias current generator applies a bias current to an output of the differential pair of transistors. A control loop generates a control voltage arising from a difference in potentials between the first input and the second input. An additional current that is added to the bias current is generated in response to the control voltage.
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