Analog-to-digital converter for both m-bit and n-bit analog conversion

摘要

There is provided an analog-to-digital converter comprising a first data register (4) for storing an m-bit analog-to-digital conversion result, a second data register (5) for storing an n-bit (n is smaller than m) analog-to-digital conversion result, and an analog-to-digital conversion control circuit (3) for transferring the n (n is smaller than m) highmost bits of the m-bit analog-to-digital conversion result stored in the first data register (4) as an n-bit analog-to-digital conversion result to the second data register (5).