| 摘要 |
A scheme for enhancement of the power-supply ripple rejection for operational amplifiers (op-amps) and low-dropout (LDO) voltage regulators is described. The scheme adds calculated amounts of current derived from the power-supply ripple with the input differential pair current to cancel off the output ripple, improving the high-frequency power-supply ripple rejection without requiring a substantial redesign of the circuitry involved. |
