Low latency automatic cross talk cancellation for led-based sensors
AssigneeAnalog Devices, Inc.
InventorsYaohua YANG, Benjamin John McCarroll, Min Park
Life of this patent
Estimating the term…
Abstract
Aspects of the present disclosure provide methods and apparatuses for operating an analog-to-digital converter. A method in accordance with an aspect of the present disclosure may comprise initializing a digital-to-analog converter (DAC) value of a DAC, determining whether an analog-to-digital converter (ADC) operates within a predetermined range based on an input to the DAC, initiating a conversion at a first ADC resolution when the ADC is operating within the predetermined range, and incrementally changing the DAC value when the ADC is not operating within the predetermined range.
Claims16
A method comprising:
- initializing a digital-to-analog converter (DAC) value of a DAC;
- determining whether an analog-to-digital converter (ADC) operates within a predetermined range based on an input to the DAC;
- initiating a conversion at a first ADC resolution when the ADC is operating within the predetermined range;
- and
- incrementally changing the DAC value when the ADC is not operating within the predetermined range.
An apparatus comprising:
- a digital-to-analog converter (DAC) having a DAC value;
- a logic circuit coupled to the DAC;
- an analog-to-digital converter (ADC) coupled to the DAC and the logic circuit, the ADC operating in a predetermined range based on an input to the DAC;
- and
- a comparator circuit coupled to the logic circuit, the ADC, and the DAC, wherein the logic circuit and the comparator circuit initiate a conversion at a first ADC resolution when the ADC is operating within the predetermined range and incrementally change the DAC value when the ADC is not operating within the predetermined range.
Dependencies are inferred from the claim text.