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US 12,231,798 B2Granted
Sub-ranging programmable gain amplifier
AssigneeGigajot Technologies, Inc.
InventorsXin Yue, Dexue Zhang, Jiaju Ma
Life of this patent
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Abstract
A sub-ranging programmable gain amplifier resolves an incoming signal into one of multiple amplitude sub-ranges and dynamically steps down the PGA output according to the identified sub-range.
Claims20
An integrated-circuit component, comprising:
- an amplifier circuit to produce a first output signal in response to an input signal, wherein the amplifier circuit comprises circuitry to produce, in accordance with a voltage level of the input signal, the first output signal to have a voltage within a voltage range that spans a plurality of continuous voltage sub-ranges;
- comparator circuitry to compare the first output signal with one or more reference voltages to identify a first voltage sub-range that encompasses the first output signal, wherein the first voltage sub-range is a single constituent sub-range of the plurality of continuous voltage sub-ranges;
- and
- voltage-adjust circuitry to selectively adjust a voltage level of the first output signal according to the first voltage-subrange to produce a second output signal.
1 more element
A method of operation within an integrated-circuit component, the method comprising:
- amplifying an input signal to produce a first output signal, including producing, in accordance with a voltage level of the input signal, the first output signal to have a voltage within a voltage range that spans a plurality of continuous voltage sub-ranges;
- comparing the first output signal with one or more reference voltages to identify a first voltage sub-range that encompasses the first output signal, wherein the first voltage sub-range is a single constituent sub-range of the plurality of continuous voltage sub-ranges;
- and
- selectively adjusting a voltage level of the first output signal according to the first voltage-subrange to produce a second output signal.
1 more element
Dependencies are inferred from the claim text.