The AD converter includes: an arithmetic operation amplifying circuit unit, a comparator circuit unit for comparing, with {TAIL ~ a reference signal}, {HEAD ~ an output} from the arithmetic operation amplifying circuit unit; a DA converted circuit unit for DA converting a signal based on a signal from the comparator circuit unit; and a sampling and holding unit arranged at an input section of the arithmetic operation amplifying circuit unit 
The AD converter includes : an arithmetic operation amplifying circuit unit , a comparator circuit unit for comparing , with { TAIL ~ a reference signal } , { HEAD ~ an output } from the arithmetic operation amplifying circuit unit ; a DA converted circuit unit for DA converting a signal based on a signal from the comparator circuit unit ; and a sampling and holding unit arranged at an input section of the arithmetic operation amplifying circuit unit
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH