| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a charge pump circuit that is configured to make output currents of the first to nth current source units in a current mirror configuration the same.SOLUTION: The charge pump circuit includes a sink circuit 123 and a sink calibration circuit 124, and the sink circuit 123 includes the first to nth current mirror units 123to 123, the (n+1)th current mirror unit 123used as a dummy for the second to nth current mirror units, and capacitive elements Cto C, Cfor adjusting gate potentials by charge holding at gates of transistors Trto Tr, Trof the current mirror units. The (n+1)th current mirror unit and the corresponding capacitive element perform calibration to make current values of the first to nth current mirror units the same.</p> |
