Patent ID: 7319422

Claim:
An analog-to-digital (AD) converting apparatus, comprising: a register configured to hold channel specifying data comprising a plurality of 1-bit channel data each corresponding to one of a plurality of analog input channels and indicating individually whether a respective one of the plurality of analog signals should be subjected to an AD conversion; a selecting section connected with the plurality of analog input channels from which said plurality of analog signals are supplied, said selecting section configured to sequentially select ones of said plurality of analog input channels based on said channel specifying data held by said register; and an AD converting section configured to carry out said AD conversion of one or more particular analog signals of said plurality of analog signals that are supplied on said selected ones of said plurality of analog input channels, so as to convert the one or more particular analog signals into a corresponding one or more digital signals; wherein said AD converting section is configured to generate a conversion completion trigger immediately before completion of said AD conversion of all of said one or more particular analog signals.