ATE322761T1 - Gleichstromkompensationskreis für einen verstärker mit variabler verstärkung - Google Patents
Gleichstromkompensationskreis für einen verstärker mit variabler verstärkungInfo
- Publication number
- ATE322761T1 ATE322761T1 AT03797260T AT03797260T ATE322761T1 AT E322761 T1 ATE322761 T1 AT E322761T1 AT 03797260 T AT03797260 T AT 03797260T AT 03797260 T AT03797260 T AT 03797260T AT E322761 T1 ATE322761 T1 AT E322761T1
- Authority
- AT
- Austria
- Prior art keywords
- variable gain
- gain amplifier
- compensation circuit
- input
- output
- Prior art date
Links
Classifications
-
- 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
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
-
- 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
- H03F3/45744—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 offset reduction
- H03F3/45748—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 offset reduction by using a feedback 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
-
- 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
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
-
- 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
- H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
- H03G1/0029—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier using FETs
-
- 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
- H03F2203/45652—Indexing scheme relating to differential amplifiers the LC comprising one or more further dif amp stages, either identical to the dif amp or not, in cascade
-
- 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
- H03F2203/45702—Indexing scheme relating to differential amplifiers the LC comprising two resistors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41282602P | 2002-09-23 | 2002-09-23 | |
US10/353,653 US6741131B2 (en) | 2002-09-23 | 2003-01-29 | DC-compensation loop for variable gain amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE322761T1 true ATE322761T1 (de) | 2006-04-15 |
Family
ID=31997005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT03797260T ATE322761T1 (de) | 2002-09-23 | 2003-08-29 | Gleichstromkompensationskreis für einen verstärker mit variabler verstärkung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6741131B2 (de) |
EP (1) | EP1547241B1 (de) |
KR (1) | KR101043222B1 (de) |
AT (1) | ATE322761T1 (de) |
AU (1) | AU2003260475A1 (de) |
DE (1) | DE60304488D1 (de) |
WO (1) | WO2004027986A2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7414804B1 (en) | 2004-08-30 | 2008-08-19 | Marvell International Ltd. | TMR/GMR amplifier with input current compensation |
JP4628881B2 (ja) * | 2005-06-15 | 2011-02-09 | ルネサスエレクトロニクス株式会社 | 可変利得増幅回路及びそのdcオフセット補正方法並びに無線受信装置 |
US20130027136A1 (en) * | 2011-07-28 | 2013-01-31 | University College Cork - National University Of Ireland | Variable gain amplifier system and method |
TWI517555B (zh) | 2013-07-17 | 2016-01-11 | 聯詠科技股份有限公司 | 直流漂移消除電路 |
US11509275B2 (en) * | 2018-04-20 | 2022-11-22 | Neophotonics Corporation | Method and apparatus for bias control with a large dynamic range for Mach-Zehnder modulators |
US10819297B1 (en) | 2019-04-29 | 2020-10-27 | Nxp B.V. | Gain stage with offset cancellation circuit for a fixed high-pass pole |
CN110225425B (zh) * | 2019-07-09 | 2024-07-02 | 深圳市中科蓝讯科技股份有限公司 | 一种麦克风输入电路 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3430154A (en) | 1965-11-29 | 1969-02-25 | Rca Corp | Circuit for stabilizing the dc output voltage of a gain controlled amplifier stage in a direct coupled integrated circuit signal translating system |
JP2879763B2 (ja) | 1989-06-27 | 1999-04-05 | ソニー株式会社 | Pllのチャージポンプ回路 |
US5724653A (en) * | 1994-12-20 | 1998-03-03 | Lucent Technologies Inc. | Radio receiver with DC offset correction circuit |
DE69529908T2 (de) * | 1995-11-30 | 2003-12-04 | St Microelectronics Srl | Frequenzselbstkompensierter Operationsverstärker |
JPH09199961A (ja) * | 1996-01-22 | 1997-07-31 | Oki Electric Ind Co Ltd | Agc装置 |
US5757230A (en) * | 1996-05-28 | 1998-05-26 | Analog Devices, Inc. | Variable gain CMOS amplifier |
KR100187200B1 (ko) | 1996-07-12 | 1999-04-15 | 김광호 | 트랜스 컨덕턴스를 이용한 차단 주파수 안정화 장치 |
FI102647B (fi) | 1997-04-22 | 1999-01-15 | Nokia Mobile Phones Ltd | Ohjelmoitava vahvistin |
US6288604B1 (en) | 1998-02-03 | 2001-09-11 | Broadcom Corporation | CMOS amplifier providing automatic offset cancellation |
JP2000031759A (ja) | 1998-07-10 | 2000-01-28 | Fujitsu Ltd | 差動増幅回路 |
US6332205B1 (en) * | 1998-12-08 | 2001-12-18 | Stmicroelectronics N.V. | Data recovery system having offset compensation |
US6441686B1 (en) | 1999-06-04 | 2002-08-27 | Analog Devices, Inc. | Offset correction method and apparatus |
US6194958B1 (en) | 1999-09-30 | 2001-02-27 | Analog Devices, Inc. | Filter having minimized cut-off frequency variations |
FR2801445A1 (fr) | 1999-11-23 | 2001-05-25 | Koninkl Philips Electronics Nv | Dispositif d'amplification a largeur de bande ajustable |
JP3489621B2 (ja) | 2000-09-28 | 2004-01-26 | 日本電気株式会社 | ダイレクトコンバージョン受信機のベースバンド回路 |
KR100474371B1 (ko) * | 2000-10-31 | 2005-03-08 | 매그나칩 반도체 유한회사 | 선형 이득 제어 증폭기 |
-
2003
- 2003-01-29 US US10/353,653 patent/US6741131B2/en not_active Expired - Lifetime
- 2003-08-29 WO PCT/EP2003/009604 patent/WO2004027986A2/en not_active Application Discontinuation
- 2003-08-29 AT AT03797260T patent/ATE322761T1/de not_active IP Right Cessation
- 2003-08-29 EP EP03797260A patent/EP1547241B1/de not_active Expired - Lifetime
- 2003-08-29 AU AU2003260475A patent/AU2003260475A1/en not_active Abandoned
- 2003-08-29 KR KR1020057004961A patent/KR101043222B1/ko active IP Right Grant
- 2003-08-29 DE DE60304488T patent/DE60304488D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU2003260475A1 (en) | 2004-04-08 |
KR20050059182A (ko) | 2005-06-17 |
DE60304488D1 (de) | 2006-05-18 |
KR101043222B1 (ko) | 2011-06-22 |
US20040056718A1 (en) | 2004-03-25 |
EP1547241B1 (de) | 2006-04-05 |
US6741131B2 (en) | 2004-05-25 |
WO2004027986A2 (en) | 2004-04-01 |
EP1547241A2 (de) | 2005-06-29 |
WO2004027986A3 (en) | 2004-09-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |