Ad conversion circuit, photoelectric conversion device, image capture device, and mobile object
AssigneeCanon Kabushiki Kaisha
InventorMASANORI FURUTA
Life of this patent
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Abstract
An AD conversion circuit for converting an analog signal provided to an input terminal into a digital signal, includes a continuous-time delta-sigma AD converter including an integration circuit configured to integrate a differential signal; and a switching circuit configured to, during a first period, provide the analog signal provided to the input terminal to the continuous-time delta-sigma AD converter, and during a second period after the first period, provide a voltage signal that corresponds to the voltage output from the integration circuit at the end of the first period to the continuous-time delta-sigma AD converter.
Claims20
An AD conversion circuit for converting an analog signal provided to an input terminal into a digital signal, comprising:
- a continuous-time delta-sigma AD converter including an integration circuit configured to integrate a differential signal;
- and
- a switching circuit configured to, during a first period, provide the analog signal provided to the input terminal to the continuous-time delta-sigma AD converter, and during a second period after the first period, provide a voltage signal that corresponds to the voltage output from the integration circuit at the end of the first period to the continuous-time delta-sigma AD converter.
An AD conversion circuit for converting an analog signal provided to an input terminal into a digital signal, comprising:
- a continuous-time delta-sigma AD converter including an integration circuit configured to integrate a differential signal;
- and
- a circuit configured to, during a first period, provide the analog signal provided to the input terminal to the continuous-time delta-sigma AD converter, and during a second period after the first period, provide a voltage signal that corresponds to the voltage output from the integration circuit at the end of the first period to the continuous-time delta-sigma AD converter.
Dependencies are inferred from the claim text.