Multiplexed two-step neural ADC
AssigneeImec Vzw
InventorMarco Ballini
Life of this patent
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Abstract
An analog-to-digital converter, ADC, module is configured to operate in a coarse conversion ADC phase, and a fine conversion ADC phase comprising a delta modulation loop for tracking a signal, wherein the ADC module is configured to, at initiation of input of an analog signal, operate in the coarse conversion ADC phase for determining a coarse digital value; wherein the ADC module is configured to, when the coarse digital value is determined, operate in the fine conversion ADC phase, receive the coarse digital value as an initial approximation of the analog signal and track the analog signal during a finite duration.
Claims16
An analog-to-digital converter, ADC, module,
- wherein the ADC module is configured to operate in a coarse conversion ADC phase, and a fine conversion ADC phase comprising a delta modulation loop for tracking a signal,
- wherein the ADC module is configured to, at initiation of input of an analog signal, operate in the coarse conversion ADC phase for determining a coarse digital value of the analog signal;
- wherein the ADC module is configured to, when the coarse digital value is determined, operate in the fine conversion ADC phase, wherein the ADC module operating in the fine conversion ADC phase is configured to receive the coarse digital value as an initial approximation of the analog signal in an integrator of the delta modulation loop and is configured to track the analog signal during a finite duration.
A method for analog-to-digital conversion, said method comprising:
- receiving an analog signal;
- at initiation of the analog signal, performing a coarse analog-to-digital conversion for determining a coarse digital value of the analog signal;
- performing a fine analog-to-digital conversion using the coarse digital value as an initial approximation of the analog signal, wherein the fine analog-to-digital conversion uses a delta modulation loop for tracking the analog signal during a finite duration.
Dependencies are inferred from the claim text.