Integrable sigma-delta modulator of the switched-capacitor type

摘要

A sigma-delta modulator in switched-capacitor technology having at least one storage element, at least one comparator and at least one integrator with an input stage and having a first switch, a first capacitor and a second switch in series, in which arrangement a reference potential can be applied to the two terminals of the first capacitor in each case via a third and fourth switch, respectively, and having a feedback stage with a second and third capacitor, one terminal of which is connected to the node formed by the first capacitor and the second and fourth switches and the other terminal of which in each case can be connected to a first and second potential and via a seventh and eighth, and ninth and tenth switch, respectively, in series with the second and first potential, respectively. …IMAGE…