| 摘要 |
PROBLEM TO BE SOLVED: To provide an amplifier circuit increasing processing speed. SOLUTION: The amplifier circuit is provided with a plurality of constant current sources 23 connected in parallel, and changeover switches 24, 25 provided at both the ends of the respective constant current sources. The positive side changeover switch 24 is switchably connected to a positive auxiliary power source 26 and a first transistor 21, and the negative side changeover switch 25 is switchably connected to a negative auxiliary power source 27 and a second transistor 22, and the positive and negative auxiliary power sources are serially connected so as to have an output in the middle thereof. The first transistor and the second transistor are respectively connected to a positive main power source 3 and a negative main power source 4. COPYRIGHT: (C)2008,JPO&INPIT
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