JP2008066986A - Ad変換回路および光検出装置 - Google Patents
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- JP2008066986A JP2008066986A JP2006241818A JP2006241818A JP2008066986A JP 2008066986 A JP2008066986 A JP 2008066986A JP 2006241818 A JP2006241818 A JP 2006241818A JP 2006241818 A JP2006241818 A JP 2006241818A JP 2008066986 A JP2008066986 A JP 2008066986A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 52
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 230000010354 integration Effects 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000875 corresponding effect Effects 0.000 description 27
- 230000003321 amplification Effects 0.000 description 8
- 238000003199 nucleic acid amplification method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
- H03M1/0675—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy
- H03M1/0678—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy using additional components or elements, e.g. dummy components
- H03M1/068—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy using additional components or elements, e.g. dummy components the original and additional components or elements being complementary to each other, e.g. CMOS
- H03M1/0682—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy using additional components or elements, e.g. dummy components the original and additional components or elements being complementary to each other, e.g. CMOS using a differential network structure, i.e. symmetrical with respect to ground
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14609—Pixel-elements with integrated switching, control, storage or amplification elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/0602—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic
- H03M1/0604—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic at one point, i.e. by adjusting a single reference value, e.g. bias or gain error
-
- 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
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
- H04N25/75—Circuitry for providing, modifying or processing image signals from the pixel 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)
- Power Engineering (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Amplifiers (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Light Receiving Elements (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
【解決手段】AD変換回路20は、差動増幅部21、第1可変容量部22A、第2可変容量部22B、比較部23、接続制御部24、第1帰還部25Aおよび第2帰還部25Bを備える。差動増幅部21の第1出力端子および第2出力端子から差動信号として出力された電圧値は、逐次比較型AD変換回路(第1可変容量部22A,第2可変容量部22B,比較部23および接続制御部24からなる。)により、6ビットのデジタル値に変換されて出力される。第1共通点P1と第2共通点P2との間の電位差は、第1帰還部25Aおよび第2帰還部25Bにより差動増幅部21に帰還されて、再び、逐次比較型AD変換回路により、6ビットのデジタル値に変換されて出力される。
【選択図】図2
Description
Analog Devices社の製品AD7641のテクニカルデータシート
Claims (3)
- 第1および第2の入力端子ならびに第1および第2の出力端子を有するアンプと,第1〜第4の容量素子と,第1〜第4のスイッチとを含み、前記第1スイッチの一端が前記第1容量素子を介して前記アンプの前記第1入力端子に接続され、前記第2スイッチの一端が前記第2容量素子を介して前記アンプの前記第2入力端子に接続され、前記第3スイッチおよび前記第3容量素子が前記アンプの前記第1入力端子と前記第1出力端子との間に並列的に設けられ、前記第4スイッチおよび前記第4容量素子が前記アンプの前記第2入力端子と前記第2出力端子との間に並列的に設けられた差動増幅部と、
互いに異なる容量値(C,…,2n-1C,…,2N-1C)を有するN個の容量素子を含み、前記N個の容量素子それぞれの一端が第1接続切替手段により前記アンプの前記第1出力端子,第1基準電位または第2基準電位に接続され、前記N個の容量素子それぞれの他端が第1共通点に接続された第1可変容量部と、
互いに異なる容量値(C,…,2n-1C,…,2N-1C)を有するN個の容量素子を含み、前記N個の容量素子それぞれの一端が第2接続切替手段により前記アンプの前記第2出力端子,前記第1基準電位または前記第2基準電位に接続され、前記N個の容量素子それぞれの他端が第2共通点に接続された第2可変容量部と、
前記第1および第2の共通点それぞれの電位を入力して大小比較し、当該比較結果を表す比較信号を出力する比較部と、
前記比較部から出力された比較信号を入力し、その比較信号に基づいて、前記第1および第2の共通点それぞれの電位の差が小さくなるように、前記第1および第2の接続切替手段それぞれによる接続切替を制御するとともに、前記第1および第2の接続切替手段それぞれにおける接続状態を表すNビットのデジタル値を出力する接続制御部と、
第1帰還容量素子および第1帰還スイッチを含み、前記第1帰還容量素子の一端が前記第1帰還スイッチを介して前記第1共通点に接続され、前記第1帰還容量素子の他端が前記アンプの前記第1入力端子に接続された第1帰還部と、
第2帰還容量素子および第2帰還スイッチを含み、前記第2帰還容量素子の一端が前記第2帰還スイッチを介して前記第2共通点に接続され、前記第2帰還容量素子の他端が前記アンプの前記第2入力端子に接続された第2帰還部と、
を備えることを特徴とするAD変換回路(ただし、Nは2以上の整数、nは1以上N以下の整数)。 - 前記差動増幅部が、第5スイッチおよび電源を更に含み、前記電源が前記第5スイッチを介して前記第2スイッチと前記第2容量素子との接続点に接続されている、ことを特徴とする請求項1記載のAD変換回路。
- 入射光量に応じた量の電荷を発生するフォトダイオードと、
前記フォトダイオードで発生した電荷を入力し蓄積して当該蓄積電荷量に応じた電圧値を出力端から出力する積分回路と、
請求項1または請求項2に記載のAD変換回路と、
を備え、
前記AD変換回路に含まれる前記差動増幅部の前記第1および第2のスイッチが前記積分回路の前記出力端に接続されている、
ことを特徴とする光検出装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006241818A JP4837501B2 (ja) | 2006-09-06 | 2006-09-06 | Ad変換回路および光検出装置 |
CN2007800332170A CN101512904B (zh) | 2006-09-06 | 2007-09-05 | Ad转换电路和光检测装置 |
US12/440,167 US7834798B2 (en) | 2006-09-06 | 2007-09-05 | AD converter circuit and optical sensor |
PCT/JP2007/067302 WO2008029841A1 (fr) | 2006-09-06 | 2007-09-05 | Circuit de numériseur et capteur optique |
EP07806745A EP2063535B1 (en) | 2006-09-06 | 2007-09-05 | Ad converter circuit and optical sensor |
IL197437A IL197437A (en) | 2006-09-06 | 2009-03-05 | Analog-digital converter circuit and optical sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006241818A JP4837501B2 (ja) | 2006-09-06 | 2006-09-06 | Ad変換回路および光検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008066986A true JP2008066986A (ja) | 2008-03-21 |
JP4837501B2 JP4837501B2 (ja) | 2011-12-14 |
Family
ID=39157267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006241818A Expired - Fee Related JP4837501B2 (ja) | 2006-09-06 | 2006-09-06 | Ad変換回路および光検出装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7834798B2 (ja) |
EP (1) | EP2063535B1 (ja) |
JP (1) | JP4837501B2 (ja) |
CN (1) | CN101512904B (ja) |
IL (1) | IL197437A (ja) |
WO (1) | WO2008029841A1 (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8730031B2 (en) | 2005-04-28 | 2014-05-20 | Proteus Digital Health, Inc. | Communication system using an implantable device |
US9659423B2 (en) | 2008-12-15 | 2017-05-23 | Proteus Digital Health, Inc. | Personal authentication apparatus system and method |
US9439566B2 (en) | 2008-12-15 | 2016-09-13 | Proteus Digital Health, Inc. | Re-wearable wireless device |
US7863941B1 (en) * | 2009-02-04 | 2011-01-04 | Altera Corporation | Techniques for canceling offsets in differential circuits |
WO2010103580A1 (ja) * | 2009-03-09 | 2010-09-16 | パナソニック株式会社 | スイッチトキャパシタ増幅回路、アナログフロントエンド回路 |
JP5235814B2 (ja) * | 2009-08-04 | 2013-07-10 | キヤノン株式会社 | 固体撮像装置 |
JP5841951B2 (ja) | 2010-02-01 | 2016-01-13 | プロテウス デジタル ヘルス, インコーポレイテッド | データ収集システム |
US9439599B2 (en) | 2011-03-11 | 2016-09-13 | Proteus Digital Health, Inc. | Wearable personal body associated device with various physical configurations |
US9756874B2 (en) | 2011-07-11 | 2017-09-12 | Proteus Digital Health, Inc. | Masticable ingestible product and communication system therefor |
WO2015112603A1 (en) | 2014-01-21 | 2015-07-30 | Proteus Digital Health, Inc. | Masticable ingestible product and communication system therefor |
JP5868065B2 (ja) * | 2011-08-05 | 2016-02-24 | キヤノン株式会社 | 撮像装置 |
US8754799B2 (en) * | 2012-01-27 | 2014-06-17 | Analog Devices, Inc. | Correlated double-sample differencing within an ADC |
CN103178848B (zh) * | 2013-02-05 | 2016-12-07 | 中国科学院苏州生物医学工程技术研究所 | 光电倍增管信号可控积分电路 |
WO2014151929A1 (en) | 2013-03-15 | 2014-09-25 | Proteus Digital Health, Inc. | Personal authentication apparatus system and method |
RU2736776C2 (ru) | 2013-09-20 | 2020-11-20 | Протеус Диджитал Хелс, Инк. | Способы, устройства и системы приема и декодирования сигналов в присутствии шума с использованием срезов и деформирования |
JP2016537924A (ja) | 2013-09-24 | 2016-12-01 | プロテウス デジタル ヘルス, インコーポレイテッド | 事前に正確に把握されていない周波数において受信された電磁信号に関する使用のための方法および装置 |
US10084880B2 (en) | 2013-11-04 | 2018-09-25 | Proteus Digital Health, Inc. | Social media networking based on physiologic information |
US9176361B2 (en) * | 2014-03-11 | 2015-11-03 | Sony Corporation | Optical analog to digital converter and method |
Citations (2)
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JP2001053610A (ja) * | 1999-06-01 | 2001-02-23 | Denso Corp | 巡回型a/d変換器 |
JP2002043941A (ja) * | 2000-07-27 | 2002-02-08 | Hamamatsu Photonics Kk | A/d変換装置および固体撮像装置 |
Family Cites Families (10)
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US4764753A (en) * | 1984-07-23 | 1988-08-16 | Nec Corporation | Analog to digital converter |
US6873364B1 (en) * | 2000-06-08 | 2005-03-29 | Micron Technology, Inc. | Low-power signal chain for image sensors |
US6674389B2 (en) * | 2001-02-09 | 2004-01-06 | Broadcom Corporation | Capacitive folding circuit for use in a folding/interpolating analog-to-digital converter |
JP4579433B2 (ja) * | 2001-02-27 | 2010-11-10 | 浜松ホトニクス株式会社 | A/d変換回路および固体撮像装置 |
ITRM20010407A1 (it) * | 2001-07-10 | 2003-01-10 | St Microelectronics Srl | Convertitore analogico/digitale ad alta velocita', alta risoluzione ebasso consumo con ingresso single-ended. |
US6940445B2 (en) * | 2002-12-27 | 2005-09-06 | Analog Devices, Inc. | Programmable input range ADC |
JP4928069B2 (ja) * | 2004-06-07 | 2012-05-09 | キヤノン株式会社 | 撮像装置及び撮像システム |
FR2873516B1 (fr) * | 2004-07-22 | 2007-02-02 | Commissariat Energie Atomique | Oscillateur controle en tension a capacite lineaire |
GB2421374B (en) * | 2004-12-15 | 2007-01-10 | Micron Technology Inc | Ramp generators for imager analog-to-digital converters |
US7504977B2 (en) * | 2007-04-23 | 2009-03-17 | Texas Instruments Incorporated | Hybrid delta-sigma/SAR analog to digital converter and methods for using such |
-
2006
- 2006-09-06 JP JP2006241818A patent/JP4837501B2/ja not_active Expired - Fee Related
-
2007
- 2007-09-05 US US12/440,167 patent/US7834798B2/en not_active Expired - Fee Related
- 2007-09-05 WO PCT/JP2007/067302 patent/WO2008029841A1/ja active Application Filing
- 2007-09-05 EP EP07806745A patent/EP2063535B1/en not_active Expired - Fee Related
- 2007-09-05 CN CN2007800332170A patent/CN101512904B/zh not_active Expired - Fee Related
-
2009
- 2009-03-05 IL IL197437A patent/IL197437A/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001053610A (ja) * | 1999-06-01 | 2001-02-23 | Denso Corp | 巡回型a/d変換器 |
JP2002043941A (ja) * | 2000-07-27 | 2002-02-08 | Hamamatsu Photonics Kk | A/d変換装置および固体撮像装置 |
Also Published As
Publication number | Publication date |
---|---|
CN101512904A (zh) | 2009-08-19 |
CN101512904B (zh) | 2011-12-07 |
IL197437A (en) | 2013-12-31 |
WO2008029841A1 (fr) | 2008-03-13 |
JP4837501B2 (ja) | 2011-12-14 |
EP2063535A1 (en) | 2009-05-27 |
US20100194621A1 (en) | 2010-08-05 |
EP2063535A4 (en) | 2010-12-01 |
IL197437A0 (en) | 2009-12-24 |
US7834798B2 (en) | 2010-11-16 |
EP2063535B1 (en) | 2012-09-05 |
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