Sigma-delta modulator arrangement, method and control apparatus for calibrating a continuous-time sigma-delta modulator
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United States of America Patent
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Apr 1, 2015
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Apr 1, 2015
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Abstract
A sigma-delta modulator arrangement includes a continuous-time sigma-delta modulator with at least one modulator stage, a digital integrator and a given number of switches. The switches are arranged and configured to convert the continuous-time sigma-delta modulator into a first order incremental sigma-delta analog-to-digital converter comprising the digital integrator. At least a first modulator stage of the continuous-time sigma-delta-modulator, which is coupled with an input of the continuous-time sigma-delta modulator, includes at least one tuning element for adjusting an input signal and/or a feedback signal which are supplied to the first modulator stage.
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