| 摘要 |
The successive approximation A/D converter includes: switch groups 105—1 to 105—x each of which is connected to the other end of each corresponding capacitor of capacitors 106—1 to 106—x to selectively switch a capacitor to be applied to a successive comparison in response to a switch group control signal Ct1; a comparator 104 for making a successive comparison of a comparison voltage VSN based on a holding voltage on each corresponding capacitor, selected through the switch groups from among the capacitors, with a predetermined reference voltage VC in synchronization with a timing control signal CLK to obtain a judgment output according to the comparison result; and a voltage application part 107 for applying a predetermined voltage to the comparison voltage based on a form-of-voltage application control signal Ct2 for a predetermined period when a predetermined time has elapsed after the successive comparison. |
