| 摘要 |
<p>An amplification circuit composed of a CMOS inverter circuit applicable to analog signal processing by removing a DC offset caused by irregularities of element characteristics in each production process. In a CMOS inverter circuit consisting of a PMOS transistor (11) and an NMOS transistor (12), in order to increase the source voltage of the NMOS transistor (12), there are provided an NMOS transistor (13) connected to the NMOS transistor (12) and DC offset detection means for detecting a DC offset and applying voltage adjusted to reduce the DC offset, to the gate of the NMOS transistor (13).</p> |
