| 摘要 |
<p>The operational amplifier circuit comprises a differencial amplifier input stage (21) for producing an amplified signal on the basis of an input voltage signal supplied thereto, an output stage (22) for producing an output signal on the basis of the inverting voltage signal, biasing circuit (24) operative to control the amounts of currents respectively flowing through the input stage and the output stage, a phase compensating circuit (23) for elimination of distortion in the inverting voltage signal due to a noise on the power voltage, and a phase compensation supporting circuit (25) for restriction of the variation of the amplified signal in a high-frequency operation.</p> |
