McGinn IP Law Group, PLLC
Semiconductor circuit
An amplifier includes differential output and input stages. The differential output stage includes first and second current paths outputting differential signals and connected between first and second power supplies. The first current path includes a first resistance between the first power supply and a first node, first and second transistors between the first node and a second node, and a second resistance between the second node and the second power supply. The second current path includes a third resistance between the first power supply and a third node, third and fourth transistors between the third node and a fourth node, and a fourth resistance between the fourth node and the second power supply. Each gate of the first to fourth transistors is connected to each of the fourth to first nodes, respectively, and output current of the differential input stage is connected to the first and third nodes.
NEC Electronics Corporation
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Yasufumi
Suzuki