Patent ID: 7973695

Claim:
An electronic apparatus comprising: an AD conversion section that has a comparing section, which receives a reference signal whose level changes gradually from a reference signal generating section that generates the reference signal and which compares the reference signal with an analog signal to be processed, and a counter section, which receives a count clock for AD conversion and performs a count operation on the basis of a comparison result of the comparing section, and that acquires digital data of the signal to be processed on the basis of output data of the counter section; a count operation period control section that controls an operation period of the counter section in each processing period on the basis of the comparison result of the comparing section; and a driving control section that controls the reference signal generating section and the AD conversion section, wherein the driving control section controls the reference signal generating section such that the inclination of the reference signal per unit time in a processing period of a reference side supplied for differential processing is larger than that in a processing period of a side including a difference acquired in the differential processing.