Providing a configuration that, when an AD converter is provided for {HEAD ~ each} of pixel columns, enables each of {TAIL ~ the elements} to be arranged without increasing the element arrangement pitch 
Providing a configuration that , when an AD converter is provided for { HEAD ~ each } of pixel columns , enables each of { TAIL ~ the elements } to be arranged without increasing the element arrangement pitch
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH