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US 10,897,265 B2Granted
Analog-to-digital conversion device, photoelectric conversion device, photoelectric conversion system, and movable object
AssigneeCanon Kabushiki Kaisha
InventorsKazuhiro Saito, Hideo Kobayashi, Tetsuya Itano
Life of this patent
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Abstract
An analog-to-digital conversion device of the embodiment includes a comparator and a logic circuit including a switch unit and a logic gate unit that receives a signal output from a comparator. The logic gate unit and the switch unit are connected to each other in series between a power supply node and a ground node.
Claims18
An analog-to-digital conversion device comprising:
- a comparator;
- and
- a logic circuit including a switch unit and a logic gate unit that receives a signal output from the comparator,
- wherein the logic gate unit has a first transistor and a second transistor of a first conductivity type, and a third transistor and a fourth transistor of a second conductivity type,
- wherein a first signal output from the comparator is input to the first transistor and the third transistor,
- wherein a second signal is input to the second transistor and the fourth transistor,
- wherein the first transistor, the second transistor and the third transistor are connected to an output node, and
- wherein the first transistor, the third transistor, the fourth transistor and the switch unit are connected in series, in this order, between a first power supply node and a second power supply node.
5 more elements
An analog-to-digital conversion device comprising:
- a comparator;
- and
- a logic circuit including a switch unit and a logic gate unit that receives a signal output from the comparator,
- wherein the logic gate unit and the switch unit are connected to each other in series between a first power supply node and a second power supply node,
- wherein the logic circuit further includes a second logic gate unit,
- wherein the logic gate unit performs a logical operation on at least two signals including the signal output from the comparator,
- wherein the second logic gate unit performs a logical operation on a signal output from the logic gate unit and a control signal separate from the at least two signals, and
- wherein the switch unit is controlled to an on-state or an off-state by the signal output from the second logic gate unit.
5 more elements
An analog-to-digital conversion device comprising:
- a comparator;
- a logic circuit including a switch unit and a logic gate unit that receives a signal output from the comparator;
- an inverter circuit connected to an output terminal of the second logic circuit;
- and
- a third logic circuit that receives a signal output from the first logic circuit and a signal output from the inverter circuit,
- wherein the logic gate unit and the switch unit are connected to each other in series between a first power supply node and a second power supply node,
- wherein the logic circuit includes a first logic circuit and a second logic circuit each including the logic gate unit and the switch unit, and
- wherein, in each of the first logic circuit and the second logic circuit, the logic gate unit and the switch unit are connected to each other in series between the first power supply node and a second power supply node.
5 more elements
Dependencies are inferred from the claim text.