GB2553393B - Fully-differential operational amplifier system - Google Patents

Fully-differential operational amplifier system Download PDF

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Publication number
GB2553393B
GB2553393B GB1706698.6A GB201706698A GB2553393B GB 2553393 B GB2553393 B GB 2553393B GB 201706698 A GB201706698 A GB 201706698A GB 2553393 B GB2553393 B GB 2553393B
Authority
GB
United Kingdom
Prior art keywords
fully
operational amplifier
amplifier system
differential operational
differential
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.)
Active
Application number
GB1706698.6A
Other versions
GB2553393A (en
GB201706698D0 (en
Inventor
Zhao Xin
Das Tejasvi
Mirzaie Hossein
Zhu Lei
Fei Xiaofan
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.)
Cirrus Logic International Semiconductor Ltd
Original Assignee
Cirrus Logic International Semiconductor Ltd
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
Priority claimed from US15/418,405 external-priority patent/US10320337B2/en
Application filed by Cirrus Logic International Semiconductor Ltd filed Critical Cirrus Logic International Semiconductor Ltd
Publication of GB201706698D0 publication Critical patent/GB201706698D0/en
Publication of GB2553393A publication Critical patent/GB2553393A/en
Application granted granted Critical
Publication of GB2553393B publication Critical patent/GB2553393B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3211—Modifications of amplifiers to reduce non-linear distortion in differential amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
    • 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
    • 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
    • H03F3/45484—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with bipolar transistors as the active amplifying circuit
    • H03F3/45488—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with bipolar transistors as the active amplifying circuit by using feedback means
    • H03F3/45493—Measuring at the loading circuit of the differential amplifier
    • 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
    • H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
    • H03F3/45695—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by using feedforward means
    • H03F3/45699—Measuring at the input circuit of the differential amplifier
    • 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
    • H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
    • H03F3/45695—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by using feedforward means
    • H03F3/45699—Measuring at the input circuit of the differential amplifier
    • H03F3/45704—Controlling the input circuit of the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/408—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising three 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
    • H03F2203/45101—Control of the DC level being present
    • 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
    • H03F2203/45134—Indexing scheme relating to differential amplifiers the whole differential amplifier together with other coupled stages being fully differential realised
    • 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
    • H03F2203/45512—Indexing scheme relating to differential amplifiers the FBC comprising one or more capacitors, not being switched capacitors, 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
    • H03F2203/45526—Indexing scheme relating to differential amplifiers the FBC comprising a resistor-capacitor combination 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
    • H03F2203/45528—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
GB1706698.6A 2016-08-30 2017-04-27 Fully-differential operational amplifier system Active GB2553393B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662381209P 2016-08-30 2016-08-30
US15/418,405 US10320337B2 (en) 2016-08-30 2017-01-27 Fully-differential operational amplifier system

Publications (3)

Publication Number Publication Date
GB201706698D0 GB201706698D0 (en) 2017-06-14
GB2553393A GB2553393A (en) 2018-03-07
GB2553393B true GB2553393B (en) 2020-04-08

Family

ID=59011006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1706698.6A Active GB2553393B (en) 2016-08-30 2017-04-27 Fully-differential operational amplifier system

Country Status (1)

Country Link
GB (1) GB2553393B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110044492A (en) * 2019-05-24 2019-07-23 哈工大机器人（山东）智能装备研究院 Calculus of differences amplifying circuit and image processing system for image processing system
GB2598120A (en) * 2020-08-18 2022-02-23 Crypto Quantique Ltd Fully differential amplifier, circuit and system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4933644A (en) * 1988-12-23 1990-06-12 Texas Instruments, Incorporated Common-mode feedback bias generator for operational amplifiers
US5936469A (en) * 1997-08-04 1999-08-10 Motorola, Inc. Amplifier with input referred common-mode adjustment
EP1096671A1 (en) * 1999-10-25 2001-05-02 Texas Instruments Incorporated A differential operational amplifier
US6417728B1 (en) * 2000-06-26 2002-07-09 Stmicroelectronics S.R.L. Switched-capacitor, fully-differential operational amplifier with high switching frequency
US7365600B1 (en) * 2005-06-02 2008-04-29 Linear Technology Corporation Non-feedback implemented control of the output-common mode of a differential amplifier
US7463089B1 (en) * 2006-07-28 2008-12-09 National Semiconductor Corporation Class D audio power amplifier for mobile applications
US20080303590A1 (en) * 2007-06-08 2008-12-11 Himax Analogic, Inc. Power amplifier with noise shaping function
EP2466745A1 (en) * 2010-12-17 2012-06-20 Dialog Semiconductor GmbH Amplifier common-mode control methods
US9231542B1 (en) * 2014-11-24 2016-01-05 Dialog Semiconductor (Uk) Limited Amplifier common-mode control method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4933644A (en) * 1988-12-23 1990-06-12 Texas Instruments, Incorporated Common-mode feedback bias generator for operational amplifiers
US5936469A (en) * 1997-08-04 1999-08-10 Motorola, Inc. Amplifier with input referred common-mode adjustment
EP1096671A1 (en) * 1999-10-25 2001-05-02 Texas Instruments Incorporated A differential operational amplifier
US6417728B1 (en) * 2000-06-26 2002-07-09 Stmicroelectronics S.R.L. Switched-capacitor, fully-differential operational amplifier with high switching frequency
US7365600B1 (en) * 2005-06-02 2008-04-29 Linear Technology Corporation Non-feedback implemented control of the output-common mode of a differential amplifier
US7463089B1 (en) * 2006-07-28 2008-12-09 National Semiconductor Corporation Class D audio power amplifier for mobile applications
US20080303590A1 (en) * 2007-06-08 2008-12-11 Himax Analogic, Inc. Power amplifier with noise shaping function
EP2466745A1 (en) * 2010-12-17 2012-06-20 Dialog Semiconductor GmbH Amplifier common-mode control methods
US9231542B1 (en) * 2014-11-24 2016-01-05 Dialog Semiconductor (Uk) Limited Amplifier common-mode control method

Also Published As

Publication number Publication date
GB2553393A (en) 2018-03-07
GB201706698D0 (en) 2017-06-14

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