A/D CONVERTER WITH DIGITAL INPUT

摘要

PURPOSE:To shorten a time necessary to a data communication in a microcomputer by converting an analog signal to the A/D digital signal of the number (n) of the bit and supplementing and outputting an input digital signal to the bit of the remaining number of an output digital signal. CONSTITUTION:An analog input part M2 inputs an analog signal S1 and A/D- converts it to the digital signal (A/D digital signal S4) of the number (n) of the bit. A mixing output part M3 inputs the A/D digital signal S4 of an (n) bit outputted from the analog input part M2 and the digital signal (input digital signal S2) inputted to a separate mixing output part M3, mixes these and outputs them as the digital signal (output digital signal S3) of an (m) bit. The mixing output part M3 buries the input digital signal S2 to a remaining output digital signal frame and uses and outputs usefully all (m) bits of the output digital signal S3.