| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a differential amplifier which realizes acceleration while suppressing power consumption. <P>SOLUTION: The differential amplifier includes a differential amplifying stage 4 and an output amplifying stage 5. The output amplifying stage includes a first transistor 101 for pull-up, a second transistor 102 for pull-down, a capacitive element 110, and switches 111, 112. The first transistor 101 for pull-up is connected across a high potential side power supply VDD and an output terminal 3 and has a control terminal 10 to which is connected a first differential output. The second transistor 102 for pull-down is connected across the output terminal 3 and a low potential side power supply VSS and has a control terminal 20 to which is connected a differential second output. The switches interchangeably connect the capacitive element 110 across the output terminal 3 and the control terminal 10 of the first transistor 101 or across the output terminal 3 and the control terminal 20 of the second transistor 102. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
