| 摘要 |
PROBLEM TO BE SOLVED: To provide an analog/digital (A/D) conversion circuit allowing reduction of power consumption in accordance with an operation mode. SOLUTION: In the A/D conversion circuit, a conversion stage 20-1 is stopped under a power saving mode and an input signal to the conversion stage 20-1 is input to a subsequent conversion stage 20-2. Thus, A/D conversion is performed while reducing the number of conversion stages in comparison with a normal mode, thereby effectively reducing power consumption. COPYRIGHT: (C)2011,JPO&INPIT |
