DE69618523D1 - Verbesserte Offsetunterdrückung für Differenzverstärker - Google Patents

Verbesserte Offsetunterdrückung für Differenzverstärker

Info

Publication number
DE69618523D1
DE69618523D1 DE69618523T DE69618523T DE69618523D1 DE 69618523 D1 DE69618523 D1 DE 69618523D1 DE 69618523 T DE69618523 T DE 69618523T DE 69618523 T DE69618523 T DE 69618523T DE 69618523 D1 DE69618523 D1 DE 69618523D1
Authority
DE
Germany
Prior art keywords
differential amplifiers
improved offset
offset suppression
suppression
improved
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
DE69618523T
Other languages
English (en)
Other versions
DE69618523T2 (de
Inventor
Frederic M Stubbe
Edward W Macrobbie
Daryush Nmi Shamlou
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.)
Mindspeed Technologies LLC
Original Assignee
Conexant Systems LLC
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 Conexant Systems LLC filed Critical Conexant Systems LLC
Publication of DE69618523D1 publication Critical patent/DE69618523D1/de
Application granted granted Critical
Publication of DE69618523T2 publication Critical patent/DE69618523T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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
    • H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Measurement Of Current Or Voltage (AREA)
DE69618523T 1995-09-29 1996-09-30 Verbesserte Offsetunterdrückung für Differenzverstärker Expired - Lifetime DE69618523T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/536,331 US5631603A (en) 1995-09-29 1995-09-29 Offset cancellation for differential amplifiers

Publications (2)

Publication Number Publication Date
DE69618523D1 true DE69618523D1 (de) 2002-02-21
DE69618523T2 DE69618523T2 (de) 2002-09-05

Family

ID=24138075

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69618523T Expired - Lifetime DE69618523T2 (de) 1995-09-29 1996-09-30 Verbesserte Offsetunterdrückung für Differenzverstärker

Country Status (4)

Country Link
US (1) US5631603A (de)
EP (1) EP0768751B1 (de)
JP (1) JPH09130172A (de)
DE (1) DE69618523T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6072349A (en) * 1997-12-31 2000-06-06 Intel Corporation Comparator
US6006169A (en) * 1997-12-31 1999-12-21 Intel Corporation Method and apparatus for trimming an integrated circuit
WO2002087073A2 (en) * 2001-04-24 2002-10-31 Tripath Technology Inc. An improved dc offset self-calibration system for a digital switching amplifier
US6535030B1 (en) * 2001-06-19 2003-03-18 Xilinx, Inc. Differential comparator with offset correction
WO2003003568A2 (en) * 2001-06-29 2003-01-09 Infineon Technologies North America Corp. Active auto zero circuit for programmable time continuous open loop amplifiers
DE10142707A1 (de) * 2001-08-31 2003-04-03 Infineon Technologies Ag Mehrstufiger Differenzverstärker mit CMFB-Schaltkreis
US7026866B2 (en) * 2003-03-28 2006-04-11 Tripath Technology, Inc. DC offset self-calibration system for a switching amplifier
US7154421B2 (en) * 2003-12-12 2006-12-26 Telasic Communications, Inc. DNL/INL trim techniques for comparator based analog to digital converters
US7142047B2 (en) * 2004-11-29 2006-11-28 Tripath Technology, Inc. Offset cancellation in a switching amplifier
US7321259B1 (en) 2005-10-06 2008-01-22 Altera Corporation Programmable logic enabled dynamic offset cancellation
US7368968B1 (en) * 2005-12-29 2008-05-06 Altera Corporation Signal offset cancellation
US7541857B1 (en) 2005-12-29 2009-06-02 Altera Corporation Comparator offset cancellation assisted by PLD resources
JP4412507B2 (ja) * 2007-10-03 2010-02-10 Ｎｅｃエレクトロニクス株式会社 半導体回路
TW201134088A (en) 2010-03-31 2011-10-01 Sunplus Technology Co Ltd Differential offset calibration circuit
CN105954563B (zh) * 2016-05-16 2018-09-28 国电南瑞科技股份有限公司 基于电流求导和差分电流过零点识别拖尾电流的方法
US11888483B2 (en) * 2022-04-05 2024-01-30 Cypress Semiconductor Corporation Clock signal conversion circuit for high-speed serial data controllers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4806875A (en) * 1988-05-11 1989-02-21 Maxim Integrated Products Precision operational amplifier
US4933642A (en) * 1989-02-17 1990-06-12 Linear Technology Corporation CMOS chopper-stabilized operational amplifier using two differential amplifier pairs as input stages
US5047727A (en) * 1989-09-20 1991-09-10 Deutsche Itt Industries Gmbh Offset-voltage-balancing operational amplifier
US5124663A (en) * 1991-03-04 1992-06-23 Motorola, Inc. Offset compensation CMOS operational amplifier

Also Published As

Publication number Publication date
EP0768751B1 (de) 2002-01-16
EP0768751A1 (de) 1997-04-16
US5631603A (en) 1997-05-20
JPH09130172A (ja) 1997-05-16
DE69618523T2 (de) 2002-09-05

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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: MINDSPEED TECHNOLOGIES, INC. (N.D.GES.D. STAATES D