| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a circuit that obtains a more accurate output voltage from a plurality of input voltages. <P>SOLUTION: A two-input single-output circuit 100 includes a current source transistor 110 allowing a predetermined current to flow, a cascade transistor section 120 including two MOS transistors 121 and 122 that are cascade-connected to the drain side of the current source transistor 110 and have the same characteristics, a differential pair section 130 having a first differential pair 131 formed of a first input-side transistor T11 and a first output-side transistor T12 whose source lines are shared and a second differential pair 132 formed of a second input-side transistor T21 and a second output-side transistor T22 whose source lines are shared, and a current mirror circuit section 140. Drain lines of the transistors 121 and 122 of the cascade transistor section 120 are respectively connected to the source lines 133 and 138 of the first differential pair 131 and second differential pair 132. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
