Back to results
US 11,606,525 B1Granted
Sub-ranging programmable gain amplifier
AssigneeGigajot Technology, Inc.
InventorsXin Yue, Dexue Zhang, Jiaju Ma
Life of this patent
Estimating the term…
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.
Claims22
An integrated-circuit component comprising:
- an amplifier circuit to produce a first output signal in response to an input signal;
- 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;
- 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;
- analog-to-digital (A/D) conversion circuitry to convert the second output signal to a first digital value;
- and
- circuitry to store a second digital value representative of the first voltage sub-range, the first and second digital values collectively forming a third digital value representative of the input signal.
3 more elements
A method of operation within an integrated-circuit component, the method comprising:
- amplifying an input signal to produce a first output signal;
- comparing the first output signal with one or more reference voltages to identify a first voltage sub-range that encompasses the first output signal;
- selectively adjusting a voltage level of the first output signal according to the first voltage-subrange to produce a second output signal;
- executing an analog-to-digital (A/D) conversion of the second output signal to produce a first digital value;
- and
- storing a second digital value representative of the first voltage sub-range, the first and second digital values collectively forming a third digital value representative of the input signal.
3 more elements
An integrated-circuit component comprising:
- an amplifier circuit to produce a first output signal in response to an input signal;
- means for comparing the first output signal with one or more reference voltages to identify a first voltage sub-range that encompasses the first output signal;
- means for selectively adjusting a voltage level of the first output signal according to the first voltage-subrange to produce a second output signal;
- means for converting the second output signal to a first digital value;
- and
- means for storing a second digital value representative of the first voltage sub-range, the first and second digital values collectively forming a third digital value representative of the input signal.
3 more elements
Dependencies are inferred from the claim text.