DE69428785D1 - Aktives Filter enthaltend eine Transkonduktanzschaltung mit hochlinearem Differenzeingang - Google Patents

Aktives Filter enthaltend eine Transkonduktanzschaltung mit hochlinearem Differenzeingang

Info

Publication number
DE69428785D1
DE69428785D1 DE69428785T DE69428785T DE69428785D1 DE 69428785 D1 DE69428785 D1 DE 69428785D1 DE 69428785 T DE69428785 T DE 69428785T DE 69428785 T DE69428785 T DE 69428785T DE 69428785 D1 DE69428785 D1 DE 69428785D1
Authority
DE
Germany
Prior art keywords
differential input
active filter
filter containing
transconductance circuit
highly linear
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 - Fee Related
Application number
DE69428785T
Other languages
English (en)
Other versions
DE69428785T2 (de
Inventor
Francesco Rezzi
Andrea Baschirotto
Rinaldo Castello
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.)
STMicroelectronics SRL
Original Assignee
STMicroelectronics SRL
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 STMicroelectronics SRL filed Critical STMicroelectronics SRL
Application granted granted Critical
Publication of DE69428785D1 publication Critical patent/DE69428785D1/de
Publication of DE69428785T2 publication Critical patent/DE69428785T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/0422—Frequency selective two-port networks using transconductance amplifiers, e.g. gmC filters
    • H03H11/0433—Two integrator loop filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/261—Amplifier which being suitable for instrumentation applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)
DE69428785T 1994-06-30 1994-06-30 Aktives Filter enthaltend eine Transkonduktanzschaltung mit hochlinearem Differenzeingang Expired - Fee Related DE69428785T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94830324A EP0690562B1 (de) 1994-06-30 1994-06-30 Aktives Filter enthaltend eine Transkonduktanzschaltung mit hochlinearem Differenzeingang

Publications (2)

Publication Number Publication Date
DE69428785D1 true DE69428785D1 (de) 2001-11-29
DE69428785T2 DE69428785T2 (de) 2002-07-04

Family

ID=8218481

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69428785T Expired - Fee Related DE69428785T2 (de) 1994-06-30 1994-06-30 Aktives Filter enthaltend eine Transkonduktanzschaltung mit hochlinearem Differenzeingang

Country Status (4)

Country Link
US (1) US5576646A (de)
EP (1) EP0690562B1 (de)
JP (1) JPH0846457A (de)
DE (1) DE69428785T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6084461A (en) * 1996-11-29 2000-07-04 Varian Medical Systems, Inc. Charge sensitive amplifier with high common mode signal rejection
DE69825060D1 (de) 1998-12-17 2004-08-19 St Microelectronics Srl Tiefpassfilterstruktur mit analoger Entzerrung
US6104249A (en) * 1998-12-31 2000-08-15 Stmicrolectronics, Inc. Highly linear transconductance circuit and filter using same
US7589326B2 (en) * 2003-10-15 2009-09-15 Varian Medical Systems Technologies, Inc. Systems and methods for image acquisition
US7095028B2 (en) * 2003-10-15 2006-08-22 Varian Medical Systems Multi-slice flat panel computed tomography
KR100703710B1 (ko) 2005-06-29 2007-04-06 삼성전자주식회사 Ｄｃ출력 오프셋을 제거할 수 있는 장치 및 방법
DE602006008883D1 (de) * 2005-12-30 2009-10-15 St Microelectronics Sa Schaltkreis eines Transkonduktanzfilters, insbesondere für ein Mobiltelefon

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4267517A (en) * 1977-12-07 1981-05-12 Tokyo Shibaura Denki Kabushiki Kaisha Operational amplifier
US4563653A (en) * 1981-03-30 1986-01-07 Pertec Computer Corporation Servo preamplifier and demodulator chain using transconductance balanced modulators
GB8513329D0 (en) * 1985-05-28 1985-07-03 Secr Defence Transconductors
NL8600422A (nl) * 1986-02-20 1987-09-16 Philips Nv Transconductantieversterker.
US4897611A (en) * 1988-10-28 1990-01-30 Micro Linear Corporation Very high gain positive feedback CMOS transconductance amplifier
US5128630A (en) * 1991-05-03 1992-07-07 Motorola, Inc. High speed fully differential operational amplifier
IT1252392B (it) * 1991-11-13 1995-06-12 Sgs Thomson Microelectronics Stadio transconduttore perfezionato per filtri ad alta frequenza

Also Published As

Publication number Publication date
JPH0846457A (ja) 1996-02-16
DE69428785T2 (de) 2002-07-04
US5576646A (en) 1996-11-19
EP0690562A1 (de) 1996-01-03
EP0690562B1 (de) 2001-10-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee