JP5291587B2 - オペアンプ - Google Patents

オペアンプ Download PDF

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Publication number
JP5291587B2
JP5291587B2 JP2009221233A JP2009221233A JP5291587B2 JP 5291587 B2 JP5291587 B2 JP 5291587B2 JP 2009221233 A JP2009221233 A JP 2009221233A JP 2009221233 A JP2009221233 A JP 2009221233A JP 5291587 B2 JP5291587 B2 JP 5291587B2
Authority
JP
Japan
Prior art keywords
amplifier
offset voltage
input terminal
switch
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2009221233A
Other languages
English (en)
Japanese (ja)
Other versions
JP2011071752A5 (enExample
JP2011071752A (ja
Inventor
敏之 津崎
晃 武田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP2009221233A priority Critical patent/JP5291587B2/ja
Priority to TW099130321A priority patent/TWI509982B/zh
Priority to KR1020100089498A priority patent/KR101377916B1/ko
Priority to US12/887,862 priority patent/US8115539B2/en
Priority to CN201010506848.3A priority patent/CN102035483B/zh
Publication of JP2011071752A publication Critical patent/JP2011071752A/ja
Publication of JP2011071752A5 publication Critical patent/JP2011071752A5/ja
Application granted granted Critical
Publication of JP5291587B2 publication Critical patent/JP5291587B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
    • H03F3/45928—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit
    • H03F3/45968—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45138—Two or more differential amplifiers in IC-block form are combined, e.g. measuring amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45212—Indexing scheme relating to differential amplifiers the differential amplifier being designed to have a reduced offset

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
JP2009221233A 2009-09-25 2009-09-25 オペアンプ Expired - Fee Related JP5291587B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2009221233A JP5291587B2 (ja) 2009-09-25 2009-09-25 オペアンプ
TW099130321A TWI509982B (zh) 2009-09-25 2010-09-08 Operational Amplifier
KR1020100089498A KR101377916B1 (ko) 2009-09-25 2010-09-13 연산 증폭기
US12/887,862 US8115539B2 (en) 2009-09-25 2010-09-22 Operational amplifier
CN201010506848.3A CN102035483B (zh) 2009-09-25 2010-09-25 运算放大器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009221233A JP5291587B2 (ja) 2009-09-25 2009-09-25 オペアンプ

Publications (3)

Publication Number Publication Date
JP2011071752A JP2011071752A (ja) 2011-04-07
JP2011071752A5 JP2011071752A5 (enExample) 2012-08-30
JP5291587B2 true JP5291587B2 (ja) 2013-09-18

Family

ID=43779643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009221233A Expired - Fee Related JP5291587B2 (ja) 2009-09-25 2009-09-25 オペアンプ

Country Status (5)

Country Link
US (1) US8115539B2 (enExample)
JP (1) JP5291587B2 (enExample)
KR (1) KR101377916B1 (enExample)
CN (1) CN102035483B (enExample)
TW (1) TWI509982B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6327813B2 (ja) * 2013-09-04 2018-05-23 三菱電機株式会社 可変利得増幅器
JP6555959B2 (ja) * 2015-07-24 2019-08-07 エイブリック株式会社 ボルテージレギュレータ
TWI577153B (zh) * 2015-10-08 2017-04-01 九暘電子股份有限公司 乙太網路供電設備的增益電路
KR101715630B1 (ko) * 2016-04-14 2017-03-22 주식회사 지니틱스 두 개의 피드백 커패시터 간의 피드백 연결 전환을 이용하여 터치입력을 감지하는 방법 및 이를 위한 장치
DE112018008149T5 (de) * 2018-11-19 2021-07-29 Mitsubishi Electric Corporation Offset-Korrekturschaltung
CN109805920B (zh) * 2019-03-15 2025-05-06 浙江诺尔康神经电子科技股份有限公司 一种快速人工耳蜗神经遥测电路及系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605907A (en) * 1985-05-20 1986-08-12 Teledyne Industries, Inc. Precisely adjustable voltage controlled current mirror amplifier
US5047727A (en) 1989-09-20 1991-09-10 Deutsche Itt Industries Gmbh Offset-voltage-balancing operational amplifier
WO1999019983A1 (en) * 1997-10-15 1999-04-22 Maxim Integrated Products, Inc. Single supply voltage to frequency converter optimized for low voltage sensing above and below ground
JP3884174B2 (ja) * 1998-07-08 2007-02-21 三菱農機株式会社 制御ユニットの接続正誤判定方法
JP4255564B2 (ja) * 1999-04-05 2009-04-15 誠 石田 増幅回路
JP4515241B2 (ja) * 2004-12-16 2010-07-28 Ｏｋｉセミコンダクタ株式会社 出力増幅回路及びそれを用いたセンサ装置
DE102005020803B4 (de) * 2005-05-04 2010-04-01 Infineon Technologies Ag Schaltungsanordnung mit einer Verstärkeranordnung und einer Offset-Kompensationsanordnung
US7535295B1 (en) * 2006-09-15 2009-05-19 Maxim Integrated Products, Inc. Chopper stabilized amplifiers combining low chopper noise and linear frequency characteristics
US7973596B2 (en) * 2009-05-12 2011-07-05 Number 14 B.V. Low-noise, low-power, low drift offset correction in operational and instrumentation amplifiers

Also Published As

Publication number Publication date
TW201125285A (en) 2011-07-16
US20110074503A1 (en) 2011-03-31
US8115539B2 (en) 2012-02-14
TWI509982B (zh) 2015-11-21
CN102035483B (zh) 2016-03-16
KR101377916B1 (ko) 2014-03-25
JP2011071752A (ja) 2011-04-07
CN102035483A (zh) 2011-04-27
KR20110033779A (ko) 2011-03-31

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