Low power switched capacitor integrator, analog-to-digital converter and switched capacitor amplifier
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United States of America Patent
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Jan 9, 2018
Issued Date -
N/A
app pub date -
May 12, 2017
filing date -
May 12, 2017
priority date (Note) -
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Abstract
Disclosed examples include switched capacitor integrator circuits including an amplifier, a feedback capacitor, a sampling capacitor, a loading capacitor and a switching circuit, along with a controller that operates the switching circuit to sample an input signal to the sampling capacitor during a sample portion of a given sample and hold cycle, to couple the sampling capacitor to an amplifier input during a first hold portion of each sample and hold cycle, and to couple the sampling capacitor and the loading capacitor to the amplifier input in a second hold portion of each sample and hold cycle to reduce the bandwidth and power consumption by the integrator circuit.
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