- - CONTINUOUS TIME SIGMA-DELTA ANALOG TO DIGITAL CONVERTER THAT CAN CONTROL RANGE OF INPUT SIGNAL WHICH CAN OPERATE WITHOUT CHANGE OF LOAD CONDITION AND CONTROL METHOD THEREFOR

摘要

A continuous-time sigma-delta analog-to-digital converter capable of adjusting an input signal size range that can operate without changing load conditions by controlling the full-scale voltage of the output when the size of the input signal changes, . A continuous time sigma-delta analog-to-digital converter capable of adjusting an operable input signal size range according to a preferred embodiment of the present invention includes: a loop filter including one or more amplifiers; A quantizer for quantizing the signal output from the loop filter into N bits; A signal detector for detecting an output of the quantizer; And a control unit for controlling a full scale voltage of the quantization unit output using the signal detected by the signal detection unit.