| 摘要 |
The present invention relates to a method and an apparatus for digital-to-analog conversion, which adjust reference current used for digital-to-analog conversion by using a common mode feedback device. The method for digital-to-analog conversion of the present invention comprises the following steps: receiving reference voltage to generate reference current; receiving the generated reference current to convert a digital signal into an analog signal; detecting common mode voltage which is an average value of both-end voltage of the converted analog signal; comparing the detected common mode voltage with the reference voltage; generating a feedback signal based on the comparison result; and adjusting the reference current according to the generated feedback signal. |
