Amplifier with transistor voltage control
AssigneeSTMicroelectronics International N.V.
InventorsSebastien Sadlo, Nathalie Deltimple, Andreia Cathelin
Life of this patent
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Abstract
An amplifier including a first amplification stage unit that includes a first transistor configured to modulate a first transistor threshold voltage using a first control voltage on a body of the first transistor, and a first direct current permitting feedback loop electrically coupling a drain of the first transistor with a gate of the first transistor. The amplifier may include a second amplification stage unit that includes a second transistor configured to modulate a second transistor threshold voltage using a second control voltage on a body of the second transistor, and a second direct current permitting feedback loop electrically coupling a drain of the second transistor with a gate of the second transistor.
Claims18
An amplifier comprising:
- a first amplification stage unit comprising:
- a first transistor configured to modulate a first transistor threshold voltage using a first control voltage on a body of the first transistor;
- and
- a first direct current permitting feedback loop electrically coupling a drain of the first transistor with a gate of the first transistor;
- and
- a second amplification stage unit comprising:
- a second transistor configured to modulate a second transistor threshold voltage using a second control voltage on a body of the second transistor;
- and
- a second direct current permitting feedback loop electrically coupling a drain of the second transistor with a gate of the second transistor;
- and
- a first direct current permitting matching circuit configured to electrically couple and match the first amplification stage unit to the second amplification stage unit,
- wherein at least one of a gain, linearity, and power consumption of the first or second amplification stage units is a function of the corresponding first or second transistor threshold voltage.
A method comprising:
- modulating, by a first transistor of a first amplification stage unit, a first transistor threshold voltage using a first control voltage on a body of the first transistor;
- electrically coupling, by a first direct current permitting feedback loop, a drain of the first transistor with a gate of the first transistor;
- modulating, by a second transistor of a second amplification stage unit, a second transistor threshold voltage using a second control voltage on a body of the second transistor;
- electrically coupling, by a second direct current permitting feedback loop, a drain of the second transistor with a gate of the second transistor;
- and
- electrically coupling and matching, by a first direct current permitting matching circuit, the first amplification stage unit to the second amplification stage unit.
Dependencies are inferred from the claim text.