Amplifier

摘要

An amplifier includes a first FET having a first back-gate end, a second FET having a second back-gate end, a third FET having a third back-gate end, a first power supply terminal configured to apply a voltage to the first back-gate end, a second power supply terminal configured to apply a voltage to the second back-gate end, and a third power supply terminal configured to apply a voltage to the third back-gate end. In the stated amplifier, the first through third power supply terminals are configured such that different voltages can be set to the first through third power supply terminals.

主权项

1. An amplifier comprising:
a first FET including a first back-gate end; a second FET including a second back-gate end; a third FET including a third back-gate end; a first power supply terminal configured to apply a first voltage to the first back-gate end; a second power supply terminal configured to apply a second voltage to the second back-gate end; and a third power supply terminal configured to apply a third voltage to the third back-gate end, wherein gate ends of the first through third FETs are connected in common with one another, source ends of the first through third FETs are connected in common with one another, drain ends of the first through third FETs are connected in common with one another, the first through third power supply terminals are configured such that different voltages are set to the first through third power supply terminals, wherein the source ends of the first through third FETs are grounded in a direct current way, and at least one power supply terminal among the first through third power supply terminals has a negative voltage relative to the ground.