CN114503430A - 运算放大器 - Google Patents

运算放大器 Download PDF

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Publication number
CN114503430A
CN114503430A CN201980101067.5A CN201980101067A CN114503430A CN 114503430 A CN114503430 A CN 114503430A CN 201980101067 A CN201980101067 A CN 201980101067A CN 114503430 A CN114503430 A CN 114503430A
Authority
CN
China
Prior art keywords
voltage
node
differential
differential pair
field effect
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.)
Withdrawn
Application number
CN201980101067.5A
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English (en)
Chinese (zh)
Inventor
小岛友和
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN114503430A publication Critical patent/CN114503430A/zh
Withdrawn legal-status Critical Current

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    • 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
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45269—Complementary non-cross coupled types
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • H03F3/3022—CMOS common source output SEPP amplifiers
    • 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
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45183—Long tailed pairs
    • 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
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45183—Long tailed pairs
    • H03F3/45192—Folded cascode stages
    • 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
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • 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
    • H03F2203/45244—Indexing scheme relating to differential amplifiers the differential amplifier contains one or more explicit bias circuits, e.g. to bias the tail current sources, to bias the load transistors
    • 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
    • H03F2203/45366—Indexing scheme relating to differential amplifiers the AAC comprising multiple transistors parallel coupled at their gates only, e.g. in a cascode dif amp, only those forming the composite common source transistor

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
CN201980101067.5A 2019-10-08 2019-10-08 运算放大器 Withdrawn CN114503430A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/039649 WO2021070245A1 (ja) 2019-10-08 2019-10-08 演算増幅器

Publications (1)

Publication Number Publication Date
CN114503430A true CN114503430A (zh) 2022-05-13

Family

ID=75437035

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980101067.5A Withdrawn CN114503430A (zh) 2019-10-08 2019-10-08 运算放大器

Country Status (4)

Country Link
US (1) US20220278662A1 (https=)
JP (1) JP7301145B2 (https=)
CN (1) CN114503430A (https=)
WO (1) WO2021070245A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117806407A (zh) * 2023-12-25 2024-04-02 普冉半导体(上海)股份有限公司 一种二级运放调压电路以及电子设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240429887A1 (en) * 2023-06-21 2024-12-26 Qualcomm Incorporated Operational transconductance amplifier with boosted transconductance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030038655A1 (en) * 2001-08-24 2003-02-27 Kabushiki Kaisha Toshiba Differential amplifier and semiconductor integrated circuit for LCD drive
CN101043207A (zh) * 2006-03-23 2007-09-26 日本电气株式会社 差动放大器、数模转换器以及显示装置
CN101183856A (zh) * 2006-11-15 2008-05-21 夏普株式会社 运算放大电路、带通滤波器电路以及红外线信号处理电路
US20140300416A1 (en) * 2013-04-04 2014-10-09 Fuji Electric Co, Ltd. Operational amplifier circuit

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03196279A (ja) * 1989-12-25 1991-08-27 Nec Corp 演算増幅器
JPH03285409A (ja) * 1990-03-30 1991-12-16 Fujitsu Ltd 増幅器
JP3476645B2 (ja) * 1996-11-08 2003-12-10 シャープ株式会社 差動増幅器、および、ボルテージフォロワ回路
DE19708203C2 (de) * 1997-02-28 1998-12-03 Siemens Ag Komparatorschaltung
US7692453B2 (en) * 2004-08-11 2010-04-06 Atmel Corporation Detector of differential threshold voltage
US7880542B1 (en) * 2007-10-03 2011-02-01 Analog Devices, Inc. Incremental gain amplifier
JP2009302619A (ja) 2008-06-10 2009-12-24 Toshiba Corp 演算増幅器
EP2330735A3 (en) * 2008-07-18 2012-04-04 Peregrine Semiconductor Corporation Operational transconductance amplifier
US8680922B2 (en) 2012-01-18 2014-03-25 Analog Devices, Inc. Rail-to rail input circuit
JP6576967B2 (ja) 2017-02-06 2019-09-18 三菱電機株式会社 コンパレータ、ａｄ変換器、半導体集積回路および回転検出装置
JP2018164182A (ja) 2017-03-24 2018-10-18 エイブリック株式会社 差動増幅回路
US10320346B2 (en) * 2017-08-23 2019-06-11 Semiconductor Components Industries, Llc Bidirectional current sense amplifier
US11176888B2 (en) * 2019-08-22 2021-11-16 Apple Inc. Auto-zero applied buffer for display circuitry

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030038655A1 (en) * 2001-08-24 2003-02-27 Kabushiki Kaisha Toshiba Differential amplifier and semiconductor integrated circuit for LCD drive
CN101043207A (zh) * 2006-03-23 2007-09-26 日本电气株式会社 差动放大器、数模转换器以及显示装置
CN101183856A (zh) * 2006-11-15 2008-05-21 夏普株式会社 运算放大电路、带通滤波器电路以及红外线信号处理电路
US20140300416A1 (en) * 2013-04-04 2014-10-09 Fuji Electric Co, Ltd. Operational amplifier circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
邹连英;郑朝霞;肖靖帆;: "一种用于DC-DC转换器的误差放大器", 舰船电子工程, no. 03, 20 March 2009 (2009-03-20) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117806407A (zh) * 2023-12-25 2024-04-02 普冉半导体(上海)股份有限公司 一种二级运放调压电路以及电子设备

Also Published As

Publication number Publication date
JPWO2021070245A1 (https=) 2021-04-15
WO2021070245A1 (ja) 2021-04-15
US20220278662A1 (en) 2022-09-01
JP7301145B2 (ja) 2023-06-30

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Application publication date: 20220513