JP7562371B2 - ランプ信号出力回路、光電変換装置、撮像システム - Google Patents

ランプ信号出力回路、光電変換装置、撮像システム Download PDF

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Publication number
JP7562371B2
JP7562371B2 JP2020181148A JP2020181148A JP7562371B2 JP 7562371 B2 JP7562371 B2 JP 7562371B2 JP 2020181148 A JP2020181148 A JP 2020181148A JP 2020181148 A JP2020181148 A JP 2020181148A JP 7562371 B2 JP7562371 B2 JP 7562371B2
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Japan
Prior art keywords
current source
source transistor
gate
ramp signal
wiring
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JP2020181148A
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English (en)
Japanese (ja)
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JP2022071983A5 (https=
JP2022071983A (ja
Inventor
誠一郎 酒井
和男 山崎
弘明 亀山
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Canon Inc
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Canon Inc
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2020181148A priority Critical patent/JP7562371B2/ja
Priority to US17/511,252 priority patent/US11552647B2/en
Publication of JP2022071983A publication Critical patent/JP2022071983A/ja
Publication of JP2022071983A5 publication Critical patent/JP2022071983A5/ja
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H03M1/56—Input signal compared with linear ramp
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/181—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values
    • H03M1/183—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/34—Analogue value compared with reference values
    • H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
    • H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
    • H03M1/466—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter using switched capacitors
    • H03M1/468—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter using switched capacitors in which the input S/H circuit is merged with the feedback DAC array
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
    • H04N25/78—Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
JP2020181148A 2020-10-29 2020-10-29 ランプ信号出力回路、光電変換装置、撮像システム Active JP7562371B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2020181148A JP7562371B2 (ja) 2020-10-29 2020-10-29 ランプ信号出力回路、光電変換装置、撮像システム
US17/511,252 US11552647B2 (en) 2020-10-29 2021-10-26 Ramp signal output circuit and photoelectric conversion apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020181148A JP7562371B2 (ja) 2020-10-29 2020-10-29 ランプ信号出力回路、光電変換装置、撮像システム

Publications (3)

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JP2022071983A JP2022071983A (ja) 2022-05-17
JP2022071983A5 JP2022071983A5 (https=) 2023-10-24
JP7562371B2 true JP7562371B2 (ja) 2024-10-07

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US (1) US11552647B2 (https=)
JP (1) JP7562371B2 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115514911B (zh) * 2022-09-23 2025-01-28 成都微光集电科技有限公司 像素单元的读出单元以及像素阵列的读出电路
WO2025004542A1 (ja) * 2023-06-27 2025-01-02 パナソニックＩｐマネジメント株式会社 撮像装置およびカメラシステム
KR20250049803A (ko) 2023-10-05 2025-04-14 삼성전자주식회사 램프 신호 생성기 및 이를 포함하는 이미지 센서 및 전자 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013172203A (ja) 2012-02-17 2013-09-02 Canon Inc 光電変換装置、光電変換装置の駆動方法
WO2015159730A1 (ja) 2014-04-16 2015-10-22 ソニー株式会社 撮像素子、ゲイン制御方法、プログラム、および電子機器
JP2017175565A (ja) 2016-03-25 2017-09-28 キヤノン株式会社 固体撮像装置及びカメラ
JP2020014110A (ja) 2018-07-18 2020-01-23 ソニーセミコンダクタソリューションズ株式会社 固体撮像素子、撮像装置、および、固体撮像素子の制御方法
JP2020167544A (ja) 2019-03-29 2020-10-08 キヤノン株式会社 撮像装置、撮像システム、および撮像装置の駆動方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10637356B2 (en) * 2017-04-03 2020-04-28 Integrated Device Technology, Inc. Multiple-level buck boost converter control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013172203A (ja) 2012-02-17 2013-09-02 Canon Inc 光電変換装置、光電変換装置の駆動方法
WO2015159730A1 (ja) 2014-04-16 2015-10-22 ソニー株式会社 撮像素子、ゲイン制御方法、プログラム、および電子機器
JP2017175565A (ja) 2016-03-25 2017-09-28 キヤノン株式会社 固体撮像装置及びカメラ
JP2020014110A (ja) 2018-07-18 2020-01-23 ソニーセミコンダクタソリューションズ株式会社 固体撮像素子、撮像装置、および、固体撮像素子の制御方法
JP2020167544A (ja) 2019-03-29 2020-10-08 キヤノン株式会社 撮像装置、撮像システム、および撮像装置の駆動方法

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US20220140838A1 (en) 2022-05-05
US11552647B2 (en) 2023-01-10
JP2022071983A (ja) 2022-05-17

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