Amplifiers and related receiver systems
First Claim
1. An amplifier circuit comprising:
- a first transistor having a source terminal connected to a first reference voltage node, a gate terminal connected to a first input node, and a drain terminal;
a second transistor having a source terminal connected to the drain terminal of the first transistor, a gate terminal connected to a second reference voltage node, and a drain terminal;
a third transistor having a source terminal connected to the second reference voltage node, a gate terminal connected to the drain terminal of the second transistor, and a drain terminal; and
a fourth transistor having a source terminal connected to the drain terminal of the third transistor, a gate terminal connected to the first reference voltage node, and a drain terminal connected to a first output node.
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Accused Products
Abstract
Apparatus are provided for amplifier circuits and related receiver systems. An amplifier circuit includes a first common-source amplification stage and a second common-source amplification stage. The input of the second common-source amplification stage is coupled to the output of the first common-source amplification stage such that the first common-source amplification stage generates a first amplified signal, and the second common-source amplification stage generates a second amplified signal based on the first amplified signal. The first common-source amplification stage is coupled to a first node and the second common-source amplification stage is coupled to a second node, wherein the common-source amplification stages are configured such that a current between the first node and the second node flows in series through the common-source amplification stages.
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Citations
20 Claims
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1. An amplifier circuit comprising:
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a first transistor having a source terminal connected to a first reference voltage node, a gate terminal connected to a first input node, and a drain terminal; a second transistor having a source terminal connected to the drain terminal of the first transistor, a gate terminal connected to a second reference voltage node, and a drain terminal; a third transistor having a source terminal connected to the second reference voltage node, a gate terminal connected to the drain terminal of the second transistor, and a drain terminal; and a fourth transistor having a source terminal connected to the drain terminal of the third transistor, a gate terminal connected to the first reference voltage node, and a drain terminal connected to a first output node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An amplifier circuit comprising:
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a first common-source amplification stage including a first transistor stack coupled between a first amplification stage output and a first reference voltage node, the first transistor stack comprising; a first transistor having a source terminal connected to the first reference voltage node, a gate terminal connected to a input node, and a drain terminal; a second transistor having a source terminal connected to the drain terminal of the first transistor, a gate terminal connected to a second reference voltage node, and a drain terminal; and a second common-source amplification stage including a second transistor stack coupled between the second reference voltage node and an output node, the second transistor stack comprising; a third transistor having a source terminal connected to the second reference voltage node, a gate terminal connected to the drain terminal of the second transistor, and a drain terminal; and a fourth transistor having a source terminal connected to the drain terminal of the third transistor, a gate terminal connected to the first reference voltage node, and a drain terminal connected to the output node. - View Dependent Claims (19, 20)
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Specification