| 摘要 |
<p>A buffer with an offset adjusting function wherein the affection of band limitation on transport signals is reduced. The buffer with the offset adjusting function comprises a signal line along which the transport signals propagate; an offset detecting circuit that has its input terminal coupled to the signal line and that generates, at its output terminal, an offset adjusting signal in accordance with the offset of a transport signal; an offset adjusting circuit that has a first terminal coupled to the output terminal of the offset detecting circuit and a second terminal coupled to the signal line and that reduces the offset of the transport signal in accordance with the offset adjusting signal; one or more impedance elements that are disposed at least either between the input terminal of the offset detecting circuit and the signal line or between the second terminal of the offset adjusting circuit and the signal line and that are combined with at least one of the internal impedance of the offset detecting circuit and the internal impedance of the offset adjusting circuit, thereby forming a filter having a predetermined frequency characteristic; and a buffer circuit that is connected to the signal line and that performs a signal amplification with a predetermined gain.</p> |
