Patent ID: 7474238
Filing Date: 2009-01-06
Classification: H03M

Abstract:
1. An analog-to-digital converter, which converts an input analog signal to a digital value of a first number of bits, the analog-to-digital converter comprising: a plurality of comparators, arranged in parallel, which each compares the input analog signal with a predetermined reference voltage wherein the number of comparators is determined based on the first number of bits; an encoder which converts outputs of the plurality of comparators to digital values of the first number of bits; and an output unit which outputs the digital values converted by said encoder, wherein when said analog-to-digital converter is to convert the input analog signal to a digital value of a second number of bits which is less than the first number of bits, said output unit corrects the digital value converted by said encoder to the digital value of the second number of bits that said analog-to-digital converter is to generate.