| 摘要 |
A buffer circuit includes a driving circuit, a biasing circuit, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a first capacitor, and a second capacitor. Both the first and second switches are turned on in response to a high voltage level of a first switching signal. Both the third and fourth switches are turned on in response to a high voltage level of a second switching signal. Both the fifth and sixth switches are turned on in response to a high voltage level of a third switching signal. The first capacitor stores a voltage drop of the driving circuit when the first switching signal is at high voltage level, and the second capacitor stores the voltage drop of the driving circuit when the second switching signal is at high voltage level. Output of the buffer circuit is almost identical to input due to an offset of the voltage stored in the second capacitor when the third switching signal is at high voltage level.
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