Analysis of noise and offset in the comparator of ananalog-to-digital converter

University essay from Linköpings universitet/Institutionen för systemteknik

Abstract:

Since digital system has become very common today it is important to have good interfaces in between the analog and digital domain. This puts high demandson the analog to digital converter. It is therefore important in the design of theanalog to digital converter to reduce noise and offset as much as possible. That isalso what this analysis is going to consider but in a comparator which is a crucialpart of the analog to digital converter. The comparator consists of a preamplifierand a latch and it is the preamplifier that will be studied here. The analog todigital converter in consider is of PSAR structure. Some other structures will alsobe mentioned in the first part together with some noise theory.

 

 

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