Patent ID: 8922403
Filing Date: 2014-12-30
Classification: H03M

Abstract:
1. An analog-to-digital conversion circuit comprising: an analog-to-digital conversion unit configured to analog-to-digital convert an input voltage and generate a digital signal; a resolution control unit configured to: set a resolution of the analog-to-digital conversion unit to N(N is the natural number) bits, in a case where the input voltage is smaller than a first voltage, and set the resolution of the analog-to-digital conversion unit to N−M (1≦M <N, M is the natural number) bits in a case where the input voltage is larger than the first voltage; and a signal correction unit configured to: generate a corrected digital signal based on calculation using a boundary value and the digital signal, which include digital values, in a case where a value of the digital signal is larger than the boundary value and the input voltage is smaller than the first voltage.