{TAIL ~ The construction} of each of the first and the second comparator groups 10a and {HEAD ~ 10b} is the same as that in the conventional A/D converter shown in FIG 6, except for the encoding circuit 5 
{ TAIL ~ The construction } of each of the first and the second comparator groups 10a and { HEAD ~ 10b } is the same as that in the conventional A / D converter shown in FIG 6 , except for the encoding circuit 5
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH