AMPLIFIER WITH CAPABILITY OF GAIN COMPENSATION AND PIPELINED ANALOG-TO-DIGITAL CONVERTOR INCLUDING THE SAME
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United States of America Patent
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Issued Date -
Oct 10, 2024
app pub date -
Mar 12, 2024
filing date -
Apr 7, 2023
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Abstract
An amplifier includes a first differential input pair, a reset circuit, a first compensation circuit and a second compensation circuit. First differential input pair includes a first non-inverting input terminal and a first inverting input terminal, and is configured to amplify a voltage difference between first non-inverting input terminal and first inverting input terminal to generate a non-inverting output voltage and an inverting output voltage of amplifier. Reset circuit is coupled with first differential input pair, and is configured to reset non-inverting output voltage and inverting output voltage of amplifier according to a reference voltage. First compensation circuit is configured to provide a first compensation voltage to first non-inverting input terminal, and first compensation voltage is positively correlated with non-inverting output voltage. Second compensation circuit is configured to provide a second compensation voltage to first inverting input terminal, and second compensation voltage is positively correlated with inverting output voltage.
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