| 摘要 |
A differential amplifier circuit includes a first load coupled to a first reference potential, a first MOS transistor having a drain node coupled to the first load, a second load coupled to the first reference potential, a second MOS transistor having a drain node coupled to the second load, a first constant current source coupled between a second reference potential and the source nodes of the first MOS transistor and the second MOS transistor, a third MOS transistor having a source node coupled to the first load, a fourth MOS transistor having a source node the second load, and a second constant current source coupled between the second reference potential and the drain nodes of the third MOS transistor and the fourth MOS transistor, wherein the first and second MOS transistors are of a first conduction type, and the third and fourth MOS transistors are of a second conduction type.
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