Hybrid analog-to-digital converter
AssigneeTaiwan Semiconductor Manufacturing Co., Ld.
InventorMartin Kinyua
Life of this patent
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Abstract
An analog-to-digital converter (ADC) circuit is configured to receive an analog input signal and convert the analog input signal to a digital output signal. The ADC circuit includes a first circuit that is configured to convert the analog input signal into a first digital signal that includes a first subset of bits of the digital output signal and further provide a residue signal based on the first digital signal; and a second circuit, coupled to the first circuit, and is configured to determine a discharging time duration by simultaneously amplifying and discharging the residue signal.
Claims20
An analog-to-digital converter (ADC) circuit configured to receive an analog input signal and convert the analog input signal to a digital output signal, comprising:
- a first circuit that is configured to convert the analog input signal into a first digital signal that includes a first subset of bits of the digital output signal and further provide a residue signal based on the first digital signal;
- and
- a second circuit, coupled to the first circuit, and is configured to determine a discharging time duration by simultaneously amplifying and discharging the residue signal.
An analog-to-digital converter (ADC) circuit configured to receive an analog input signal and convert the analog input signal to a digital output signal, comprising:
- a first circuit that is configured to convert the analog input signal into a first digital signal that includes a first subset of bits of the digital output signal and further provide a residue signal based on the first digital signal;
- a second circuit, coupled to the first circuit, and is configured to determine a discharging time duration by simultaneously amplifying and discharging the residue signal;
- and
- a third circuit, coupled to the second circuit, and is configured to receive the discharging time duration and use the discharging time duration to provide a second digital signal that represents a second subset of bits of the digital output signal.
Dependencies are inferred from the claim text.