| 摘要 |
The invention concerns a time-continuous delta-sigma analog-digital converter for the conversion of an analog input signal into a digital output signal, comprising an analog filter for the filtering of the analog input signal, a clocked operated quantiser, which contains at least one comparator ( 34 ) and which quantises the filtered analog signal outputted through the analog filter for the generation of the digital output signal, and a feedback arrangement with at least one digital-analog converter, which supplies to the analog filter at least one feedback signal on the basis of the digital output signal. According to the invention a calibration device ( 32 ) linked with the quantiser is stipulated, which is designed to determine at a predetermined point in time an offset error of the comparator ( 34 ) and subsequently to compensate for this (Itrim).
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