Image pickup apparatus, driving method for image pickup apparatus, image pickup system, and driving method for image pickup system

摘要

In an image pickup apparatus, a counter (700) configured to output a count signal to a second AD conversion unit (ADC) start, with a delay, counting clock signals as compared with a counter configured to output a count signal to a first AD conversion unit (ADC) by a time period corresponding to a delay of a reference signal output to a comparator (102) of the second AD conversion unit with respect to a reference signal output to the comparator of the first AD conversion unit.