Infineon Technologies Ag

Massimo Rigo

Michael Kropfitsch

Herwig Wappis

Martin Pernull

Sigma-delta converters having a sampling circuit are provided. The sampling circuit is actuated such that sampling times are at least partially random.

Sigma-delta converters and corresponding methods

A sigma delta analog to digital converter for converting an analog input into a digital output comprises a reference path for receiving a reference voltage. The reference path comprises a digital to analog converter. The digital to analog converter comprises a reference voltage input for receiving the reference voltage, wherein the reference voltage input comprises two contacts and wherein each contact is a beginning of a voltage line of two voltage lines. The digital to analog converter comprises a plurality of switches and a plurality of capacitors. The switches of the plurality of switches are configured to connect the digital to analog converter in a sampling phase with the reference voltage and to disconnect the digital to analog converter in an integrating phase from the reference voltage.

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Villach, Austria

Massimo Rigo