US 2011/0032404 A1Published application

Solid-state imaging apparatus

AssigneeCanon Kabushiki Kaisha

InventorShin Kikuchi

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Abstract

A solid-state imaging apparatus includes a pixel outputting a pixel signal; and an amplifier for amplifying the pixel signal. The amplifier includes an input capacitor connected between an input terminal of the operational amplifier and the pixel, a feedback capacitor connected between the input and output terminals of the amplifier, an initializing switch connected between the input terminal and the output terminal of the amplifier, a first capacitor connected in parallel to the feedback capacitor, a second capacitor connected in parallel to the feedback capacitor, a first switch connected between an one terminal of the feedback capacitor and an one terminal of the first capacitor, and a second switch connected between the one terminal of the first capacitor and an one terminal of the second capacitor. One terminal of the first or second capacitor is connected to the one terminal of the second capacitor through the first and second switches.

Claims7

Dependent claims

A solid-state imaging apparatus comprising:

a pixel including a photoelectric conversion element and outputting a pixel signal;
and
an amplifier for amplifying the pixel signal outputted from the pixel, wherein
the amplifier includes
an operational amplifier,
an input capacitor having one terminal connected to an input terminal of the operational amplifier and the other terminal connected to the pixel,
a feedback capacitor connected between the input terminal and an output terminal of the operational amplifier,
an initialization switch connected between the input terminal and the output terminal of the operational amplifier,
a first capacitor connected in parallel to the input capacitor having one terminal connected to the one terminal of the input capacitor and the other terminal connected to the other terminal of the input capacitor,
a second capacitor connected in parallel to the input capacitor having one terminal connected to the one terminal of the input capacitor and the other terminal connected to the other terminal of the input capacitor,
a first switch and a second switch,
wherein the first switch is arranged between the one terminals of the input capacitor and the first capacitor, and the second switch is arranged between the one terminals of the first and second capacitors,
or the first switch is arranged between the other terminals of the input capacitor and the first capacitor, and the second switch is arranged between the other terminals of the first and second capacitors.

10 more elements

A solid-state imaging apparatus comprising:

a pixel including a photoelectric conversion element and outputting a pixel signal;
and
an amplifier for amplifying the pixel signal outputted from the pixel, wherein
the amplifier includes
an operational amplifier,
an input capacitor having one terminal connected to an input terminal of the operational amplifier and the other terminal connected to the pixel,
a feedback capacitor connected between the input terminal and an output terminal of the operational amplifier,
an initialization switch connected between the input terminal and the output terminal of the operational amplifier,
a first capacitor connected in parallel to the feedback capacitor having one terminal connected to the one terminal of the feedback capacitor and the other terminal connected to the other terminal of the feedback capacitor,
a second capacitor connected in parallel to the feedback capacitor having one terminal connected to the one terminal of the feedback capacitor and the other terminal connected to the other terminal of the feedback capacitor,
a first switch and a second switch
wherein the first switch is arranged between the one terminals of the feedback capacitor and the first capacitor, and the second switch is arranged between the one terminals of the first and second capacitors,
or, the first switch is arranged between the other terminals of the feedback capacitor and the first capacitor, and the second switch is arranged between the other terminals of the first and second capacitors.

10 more elements

Dependencies are inferred from the claim text.