said A/D converter includes {HEAD ~ an adding circuit} adding {TAIL ~ the digital value} from said A/D converting circuit and the digital value from said first storing circuit, and outputting the added result 
adding
said A / D converter includes { HEAD ~ an adding circuit } adding { TAIL ~ the digital value } from said A / D converting circuit and the digital value from said first storing circuit , and outputting the added result
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH