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US 2016/0079942 A1Published application
Common-gate amplifier for high-speed dc-coupling communications
AssigneeQUALCOMM Incorporated
InventorsMiao Li, Li Sun, Zhi Zhu
Life of this patent
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AssigneeQUALCOMM Incorporated
InventorsMiao Li, Li Sun, Zhi Zhu
Estimating the term…
In one embodiment, a receiver comprises a differential common-gate amplifier having a differential input and a differential output, wherein the differential input comprises a first input and a second input, and the differential common-gate amplifier is configured to amplify an input differential signal at the differential input into an amplified differential signal at the differential output. The receiver also comprises a common-mode voltage sensor configured to sense a common-mode voltage of the input differential signal, a replica circuit configured to generate a replica voltage that tracks a direct current (DC) voltage at at least one of the first and second inputs, and a comparator configured to compare the sensed common-mode voltage with the replica voltage, and to adjust a first bias voltage input to the differential common-gate amplifier based on the comparison, wherein the DC voltage depends on the first bias voltage.
A receiver, comprising:
A method for operating a differential common-gate amplifier having a differential input and a differential output, wherein the differential input comprises a first input and a second input, the method comprising:
An apparatus for operating a differential common-gate amplifier having a differential input and a differential output, wherein the differential input comprises a first input and a second input, the apparatus comprising:
Dependencies are inferred from the claim text.