Switched-capacitor integrators with improved flicker noise rejection
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United States of America Patent
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Aug 27, 2024
Grant Date -
Jul 28, 2022
app pub date -
Jan 28, 2021
filing date -
Jan 28, 2021
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Abstract
An example SC integrator can include first and second sampling capacitors, an amplifier, an integrating capacitor, coupled at least to an output of the amplifier, and a switching arrangement. The SC integrator can be configured for adding (i.e., integrating in the integrating capacitor) sign-inverted samples of a flicker noise of the amplifier at one or more cycles of a master clock and can be configured for keeping the time distance/delay between those samples relatively small across a range of master clock frequencies.
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