CN102783016B - 多级系统中的放大器偏移及噪声减少 - Google Patents

多级系统中的放大器偏移及噪声减少 Download PDF

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Publication number
CN102783016B
CN102783016B CN201080064868.8A CN201080064868A CN102783016B CN 102783016 B CN102783016 B CN 102783016B CN 201080064868 A CN201080064868 A CN 201080064868A CN 102783016 B CN102783016 B CN 102783016B
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CN
China
Prior art keywords
input terminal
amplifier
operational amplifier
offset voltage
coupled
Prior art date
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Active
Application number
CN201080064868.8A
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English (en)
Chinese (zh)
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CN102783016A (zh
Inventor
亚当·L·舒克
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Texas Instruments Inc
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Texas Instruments Inc
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Publication date
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Publication of CN102783016A publication Critical patent/CN102783016A/zh
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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
    • H03F3/45076—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
    • 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
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/375—Circuitry to compensate the offset being present in an amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/411—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising two power stages
    • 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
    • H03F2203/45528—Indexing scheme relating to differential amplifiers the FBC comprising one or more passive resistors and being coupled between the LC and the IC
    • 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
    • H03F2203/45586—Indexing scheme relating to differential amplifiers the IC comprising offset generating means
    • 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
    • H03F2203/45588—Indexing scheme relating to differential amplifiers the IC comprising offset compensating means
    • 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
    • H03F2203/45594—Indexing scheme relating to differential amplifiers the IC comprising one or more resistors, which are not biasing resistor
    • 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
    • H03F2203/45622—Indexing scheme relating to differential amplifiers the IC comprising a voltage generating circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
CN201080064868.8A 2010-03-05 2010-12-21 多级系统中的放大器偏移及噪声减少 Active CN102783016B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/718,134 US7965139B1 (en) 2010-03-05 2010-03-05 Amplifier offset and noise reduction in a multistage system
US12/718,134 2010-03-05
PCT/US2010/061514 WO2011109056A1 (en) 2010-03-05 2010-12-21 Amplifier offset and noise reduction in a multistage system

Publications (2)

Publication Number Publication Date
CN102783016A CN102783016A (zh) 2012-11-14
CN102783016B true CN102783016B (zh) 2015-11-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201080064868.8A Active CN102783016B (zh) 2010-03-05 2010-12-21 多级系统中的放大器偏移及噪声减少

Country Status (4)

Country Link
US (1) US7965139B1 (https=)
JP (1) JP2013521742A (https=)
CN (1) CN102783016B (https=)
WO (1) WO2011109056A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011130571A1 (en) 2010-04-14 2011-10-20 Aerovironment, Inc. Pilot signal generation circuit
US9054660B1 (en) * 2014-01-10 2015-06-09 Analog Devices Global Amplifying system
US9954496B2 (en) * 2015-12-21 2018-04-24 Texas Instruments Incorporated Mitigating amplifier pop noise
CN108964616A (zh) * 2018-06-08 2018-12-07 北方电子研究院安徽有限公司 一种电容检测信号处理电路降低噪声方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6504429B2 (en) * 2000-11-14 2003-01-07 Sirenza Microdevices, Inc. Wide dynamic range transimpedance amplifier
US6507241B1 (en) * 2000-10-03 2003-01-14 International Business Machines Corporation Method and circuit for automatically correcting offset voltage
CN1926759A (zh) * 2004-01-05 2007-03-07 日本电气株式会社 放大器
CN101079598A (zh) * 2006-04-10 2007-11-28 松下电器产业株式会社 高频功率放大器和通信设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899743A (en) 1974-01-07 1975-08-12 Gen Electric Biasing circuit for multistage transistor amplifiers
GB8728853D0 (en) 1987-12-10 1988-01-27 Bt & D Technologies Ltd Transimpedance pre-amplifier & receiver including pre-amplifier
US5663680A (en) * 1996-04-04 1997-09-02 Nordeng; Arnold E. Chopper stabilized amplifier having an additional differential amplifier stage for improved noise reduction
DE69727934D1 (de) * 1997-10-31 2004-04-08 St Microelectronics Srl Integrierter parallele Verbindungen erlaubender Leistungsverstärker
ATE289130T1 (de) * 1997-12-16 2005-02-15 St Microelectronics Nv Operationsverstärkeranordnung
US6329876B1 (en) * 1999-01-04 2001-12-11 Tripath Technology, Inc. Noise reduction scheme for operational amplifiers
FR2814008A1 (fr) 2000-09-12 2002-03-15 Koninkl Philips Electronics Nv Dispositif d'amplification a linearite optimisee
ATE401694T1 (de) * 2001-04-11 2008-08-15 Nxp Bv Offsetspannungskompensation mit hohem tastverhältnis für operationsverstärker
EP1258981A1 (en) * 2001-05-18 2002-11-20 Alcatel Operational amplifier arrangement including a quiescent current control circuit
US7132882B2 (en) 2002-07-19 2006-11-07 Avago Technologies Fiber Ip (Singapore) Pte. Ltd. Amplifier having multiple offset-compensation paths and related systems and methods
KR100698332B1 (ko) * 2005-02-04 2007-03-23 삼성전자주식회사 이득제어 증폭기
JP4246177B2 (ja) * 2005-04-28 2009-04-02 シャープ株式会社 オフセット補正回路およびオペアンプ回路
TWI290422B (en) 2005-06-09 2007-11-21 Via Tech Inc Circuit for DC offset cancellation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6507241B1 (en) * 2000-10-03 2003-01-14 International Business Machines Corporation Method and circuit for automatically correcting offset voltage
US6504429B2 (en) * 2000-11-14 2003-01-07 Sirenza Microdevices, Inc. Wide dynamic range transimpedance amplifier
CN1926759A (zh) * 2004-01-05 2007-03-07 日本电气株式会社 放大器
CN101079598A (zh) * 2006-04-10 2007-11-28 松下电器产业株式会社 高频功率放大器和通信设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A current mode CMOS IC for biological signals measurement in noisy enviroment;Mohsen AYACHI等;《2007 IEEE International Conference on signal processing and communications》;20071127;297-300 *

Also Published As

Publication number Publication date
WO2011109056A8 (en) 2012-02-02
CN102783016A (zh) 2012-11-14
US7965139B1 (en) 2011-06-21
JP2013521742A (ja) 2013-06-10
WO2011109056A1 (en) 2011-09-09

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