Analog-digital converter

An analog-digital converter, comprising:

• a plurality of converter units each comprising:
• a comparator for performing a comparison using an input voltage;
• one or more capacitor ladders each including a signal line connected with first terminals of a plurality of capacitors and with one input of the comparator,
• wherein the capacitances of the capacitors are set to provide a conversion redundancy;
• and
• a plurality of switches each of which is associated with one of the plurality of capacitors, connected to a second terminal of the respective capacitor with a first or a second reference potential,
• wherein the input voltage is shifted when switching at least one of the plurality of switches;
• and
• a control unit for controlling a number of converter units,
• wherein the control unit is configured to set switching states of the plurality of switches in a plurality of conversion cycles and to obtain comparison results from each of the comparators in a comparison step subsequent to each setting of the switching states,
• wherein the comparison results for each conversion cycle are associated with the switching states of at least one of the plurality of switches, and
• wherein the switching states of the switches are directly controlled by a level of the comparison results for each conversion cycle.