Back to results
US 2018/0123608 A1Published application
Da converter, ad converter, and semiconductor device
AssigneeSony Corporation
InventorsGo Asayama, Noriyuki Fukushima, Yoshikazu Nitta, Yoshinori Muramatsu, Kiyotaka Amano
Life of this patent
Estimating the term…
Abstract
A DA converter includes a first DA conversion section for obtaining an analog output signal in accordance with a digital input signal value, and a second DA conversion section for obtaining an analog gain control output signal in accordance with a digital gain control input signal value. In the DA converter, the gain control of the analog output signal generated by the first DA conversion section is performed on the basis of the gain control output signal generated by the second DA conversion section.
Claims8
A DA converter comprising:
- a first DA conversion section for obtaining an analog output signal in accordance with a digital input signal value;
- and
- a second DA conversion section for obtaining an analog gain control output signal in accordance with a digital gain control input signal value,
- wherein gain control of the analog output signal generated by the first DA conversion section is performed on the basis of the gain control output signal generated by the second DA conversion section.
1 more element
An AD converter comprising:
- a reference-signal generation section for generating a reference signal for converting an analog signal into a digital signal;
- a comparison section for comparing the analog signal and the reference signal generated by the reference-signal generation section;
- and
- a counter section for performing count processing with a predetermined count clock concurrently with comparison processing by the comparison section and holding a count value at the point in time of completion of the comparison processing by the comparison section,
- wherein the reference-signal generation section includes
- a first DA conversion section for obtaining the reference signal in accordance with a value of a digital input signal and
- a second DA conversion section for obtaining an analog gain control output signal in accordance with a value of a digital gain control input signal, and
- a gain of the reference signal generated by the first DA conversion section is adjusted on the basis of the gain control output signal generated by the second DA conversion section.
5 more elements
A semiconductor device for detecting a physical-quantity distribution, the semiconductor device comprising:
- an effective area including an electric-charge generation section for generating electric charge corresponding to incident electromagnetic wave and a unit-signal generation section for generating an analog unit signal corresponding to the electric charge generated by the electric-charge generation section in a unit component;
- a reference-signal generation section for generating a reference signal for converting the unit signal into a digital signal as a functional element for converting the unit signal into a digital signal;
- a comparison section for comparing the unit signal and the reference signal generated by the reference-signal generation section;
- and
- a counter section for performing count processing with a predetermined count clock concurrently with comparison processing by the comparison section and holding a count value at the point in time of completion of the comparison processing by the comparison section,
- wherein the reference-signal generation section includes a first DA conversion section for obtaining the reference signal in accordance with a value of a digital input signal and
- a second DA conversion section for obtaining an analog gain control output signal in accordance with a value of a digital gain control input signal, and
- a gain of the reference signal generated by the first DA conversion section is adjusted on the basis of the gain control output signal generated by the second DA conversion section.
5 more elements
An electronic apparatus comprising:
- an imaging section including an effective area including an electric-charge generation section for generating electric charge corresponding to incident electromagnetic wave and a unit-signal generation section for generating an analog unit signal corresponding to the electric charge generated by the electric-charge generation section in a unit component, a reference-signal generation section for generating a reference signal for converting the unit signal into a digital signal, a comparison section for comparing the unit signal and the reference signal generated by the reference-signal generation section, and a counter section for performing count processing with a predetermined count clock concurrently with comparison processing by the comparison section and holding a count value at the point in time of completion of the comparison processing by the comparison section;
- and
- a signal-processing circuit section for performing processing on the signal read from the imaging section,
- wherein the reference-signal generation section includes a first DA conversion section for obtaining the reference signal in accordance with a value of a digital input signal value and
- a second DA conversion section for obtaining an analog gain control output signal in accordance with a value of a digital gain control input signal, and
- a gain of the reference signal generated by the first DA conversion section is adjusted on the basis of the gain control output signal generated by the second DA conversion section.
3 more elements
Dependencies are inferred from the claim text.