{TAIL ~ The DA} converted circuit unit is arranged between the comparator circuit unit and {HEAD ~ the arithmetic operation amplifying circuit unit} 
{ TAIL ~ The DA } converted circuit unit is arranged between the comparator circuit unit and { HEAD ~ the arithmetic operation amplifying circuit unit }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD