DE69617369D1 - Verstärkerschaltung mit variabler Verstärkung - Google Patents

Verstärkerschaltung mit variabler Verstärkung

Info

Publication number
DE69617369D1
DE69617369D1 DE69617369T DE69617369T DE69617369D1 DE 69617369 D1 DE69617369 D1 DE 69617369D1 DE 69617369 T DE69617369 T DE 69617369T DE 69617369 T DE69617369 T DE 69617369T DE 69617369 D1 DE69617369 D1 DE 69617369D1
Authority
DE
Germany
Prior art keywords
amplifier circuit
variable gain
gain amplifier
variable
circuit
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 - Lifetime
Application number
DE69617369T
Other languages
English (en)
Other versions
DE69617369T2 (de
Inventor
Tachio Yuasa
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.)
Fujitsu Semiconductor Ltd
Original Assignee
Fujitsu 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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69617369D1 publication Critical patent/DE69617369D1/de
Publication of DE69617369T2 publication Critical patent/DE69617369T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
DE69617369T 1995-11-10 1996-05-31 Verstärkerschaltung mit variabler Verstärkung Expired - Lifetime DE69617369T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29232595A JP3573849B2 (ja) 1995-11-10 1995-11-10 増幅回路

Publications (2)

Publication Number Publication Date
DE69617369D1 true DE69617369D1 (de) 2002-01-10
DE69617369T2 DE69617369T2 (de) 2002-05-08

Family

ID=17780327

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69617369T Expired - Lifetime DE69617369T2 (de) 1995-11-10 1996-05-31 Verstärkerschaltung mit variabler Verstärkung

Country Status (6)

Country Link
US (1) US5721513A (de)
EP (1) EP0774834B1 (de)
JP (1) JP3573849B2 (de)
KR (1) KR100198237B1 (de)
DE (1) DE69617369T2 (de)
TW (1) TW303545B (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5973566A (en) * 1998-03-31 1999-10-26 Hewlett Packard Company Discrete step variable gain inverting amplifier with constant ratio between adjacent gains
WO1999059243A1 (fr) 1998-05-14 1999-11-18 Mitsubishi Denki Kabushiki Kaisha Circuit a semi-conducteur
US6680640B1 (en) 1999-11-11 2004-01-20 Broadcom Corporation High linearity large bandwidth, switch insensitive, programmable gain attenuator
AU1658501A (en) * 1999-11-11 2001-06-06 Broadcom Corporation Gigabit ethernet transceiver with analog front end
US6696892B1 (en) 1999-11-11 2004-02-24 Broadcom Corporation Large dynamic range programmable gain attenuator
US6731160B1 (en) * 1999-11-11 2004-05-04 Broadcom Corporation Adjustable bandwidth high pass filter for large input signal, low supply voltage applications
JP4015903B2 (ja) * 2002-08-02 2007-11-28 Ｎｅｃエレクトロニクス株式会社 入力保護回路
TWI230503B (en) * 2003-05-20 2005-04-01 Mediatek Inc Amplifier with fixed input impedance operated in various gain modes
CN1321496C (zh) * 2003-06-11 2007-06-13 联发科技股份有限公司 具有固定输入阻抗的放大器及相关方法
JP4460862B2 (ja) 2003-09-05 2010-05-12 ヴェリジー（シンガポール） プライベート リミテッド 半導体スイッチを用いた増幅装置
US7132893B2 (en) * 2004-05-07 2006-11-07 Microchip Technology Incorporated Selectable gain amplifier
JP4774707B2 (ja) 2004-09-29 2011-09-14 ミツミ電機株式会社 増幅回路及び入力回路
JP5025171B2 (ja) * 2005-09-29 2012-09-12 エスケーハイニックス株式会社 差動増幅装置
JP4697052B2 (ja) * 2006-05-26 2011-06-08 株式会社デンソー ガス濃度検出装置
US8333875B2 (en) * 2007-02-05 2012-12-18 Denso Corporation Sensor control device
JP4899992B2 (ja) * 2007-03-30 2012-03-21 ソニー株式会社 フロントエンド集積回路
JP4512632B2 (ja) * 2007-12-19 2010-07-28 Ｏｋｉセミコンダクタ株式会社 Ｄｃ−ｄｃコンバータ
KR102670924B1 (ko) 2019-01-24 2024-05-31 삼성전자 주식회사 스위치 및 상기 스위치를 제어하기 위한 스위치 제어 프로세서를 포함하는 증폭기
WO2024141618A1 (en) * 2022-12-30 2024-07-04 Analog Devices International Unlimited Company Amplifier with adjustable input and output resistance

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068185A (en) * 1976-03-01 1978-01-10 Varian Associates, Inc. Current balancing circuit for use with chromatographic system detector
US4350959A (en) * 1980-04-14 1982-09-21 The United States Of America As Represented By The Secretary Of The Navy Feedback signal amplifier
EP0135759B1 (de) * 1983-09-22 1988-07-20 BBC Brown Boveri AG Schaltungsanordnung zur Umsetzung einer in einem vorgegebenen Arbeitsfrequenzbereich liegenden Eingangsspannung in eine proportionale Ausgangsspannung
JPS60167420U (ja) * 1984-04-13 1985-11-07 日本電気株式会社 半導体装置
JPS60236509A (ja) * 1984-05-10 1985-11-25 Fujitsu Ltd 差動可変増幅回路
JPH071870B2 (ja) * 1984-07-31 1995-01-11 日本電気株式会社 ディジタル／アナログ変換回路
JPS61129964A (ja) * 1984-11-29 1986-06-17 Fuji Photo Film Co Ltd 電荷転送装置の出力回路
JPS62173809A (ja) * 1986-01-28 1987-07-30 Fujitsu Ltd 増幅装置
US4855685A (en) * 1987-09-30 1989-08-08 Texas Instruments Incorporated Precision switchable gain circuit
JP3060496B2 (ja) * 1990-07-31 2000-07-10 ソニー株式会社 スイツチ回路
JPH04131014U (ja) * 1991-05-21 1992-12-01 富士通テン株式会社 演算増幅器用バイアス回路
US5138280A (en) * 1991-12-05 1992-08-11 Ford Motor Company Multichannel amplifier with gain matching
JPH05315870A (ja) * 1992-05-07 1993-11-26 Mitsubishi Electric Corp 情報処理装置

Also Published As

Publication number Publication date
JPH09135132A (ja) 1997-05-20
KR100198237B1 (ko) 1999-06-15
US5721513A (en) 1998-02-24
TW303545B (en) 1997-04-21
EP0774834B1 (de) 2001-11-28
JP3573849B2 (ja) 2004-10-06
EP0774834A1 (de) 1997-05-21
DE69617369T2 (de) 2002-05-08
KR970031232A (ko) 1997-06-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FUJITSU MICROELECTRONICS LTD., TOKYO, JP

8327 Change in the person/name/address of the patent owner

Owner name: FUJITSU SEMICONDUCTOR LTD., YOKOHAMA, KANAGAWA, JP

8328 Change in the person/name/address of the agent

Representative=s name: SEEGER SEEGER LINDNER PARTNERSCHAFT PATENTANWAELTE