| 摘要 |
<p>PURPOSE: To fix the potential on the substrate part of an MOS transistor at a level different for each group by dividing the substrate part of a first MOS transistor, as a whole, into more than one group the potential thereof can be controlled independently. CONSTITUTION: The substrate terminals of transistors M101 -M108 are divided into a substrate terminal group of transistors M101 -M104 and a substrate terminal group of transistors M105 -M108 . The substrate terminals of the transistors M101 -M104 are then connected with the drain terminal N100 of the transistor M101 . The substrate terminals of the transistors M105 -M108 are connected with the drain terminal N104 of the transistor M105 . This circuitry can fix the potential of the substrate part of an MOS transistor at a level different for each group.</p> |
