Chopper amplifiers with low intermodulation distortion
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United States of America
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Apr 30, 2024
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N/A
app pub date -
Jun 29, 2021
filing date -
Jun 29, 2021
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Abstract
Chopper amplifiers with low intermodulation distortion (IMD) are provided. To compensate for IMD, at least one distortion compensation channel is included in parallel with chopper amplifier circuitry of a main signal channel. Additionally, output selection switches are included for selecting between the output of the main signal path and the distortional compensation channel(s) over time to maintain the output current continuous. Such IMD compensation can be realized by filling in missing current of the main signal channel using the distortion compensation channel(s), or by using channel outputs only when they have settled current.
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