IT8026758A0 - Amplificatore differenziale a guadagno variabile. - Google Patents

Amplificatore differenziale a guadagno variabile.

Info

Publication number
IT8026758A0
IT8026758A0 IT8026758A IT2675880A IT8026758A0 IT 8026758 A0 IT8026758 A0 IT 8026758A0 IT 8026758 A IT8026758 A IT 8026758A IT 2675880 A IT2675880 A IT 2675880A IT 8026758 A0 IT8026758 A0 IT 8026758A0
Authority
IT
Italy
Prior art keywords
differential amplifier
variable gain
gain differential
variable
amplifier
Prior art date
Application number
IT8026758A
Other languages
English (en)
Other versions
IT1134789B (it
Inventor
Karl Heinz Rehfeldt
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of IT8026758A0 publication Critical patent/IT8026758A0/it
Application granted granted Critical
Publication of IT1134789B publication Critical patent/IT1134789B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/04—Modifications of control circuit to reduce distortion caused by control
    • 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
    • H03G1/0023—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 in emitter-coupled or cascode amplifiers
IT8026758A 1979-12-21 1980-12-18 Amplificatore differenziale a guadagno variabile IT1134789B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2951637A DE2951637C2 (de) 1979-12-21 1979-12-21 Einstellbarer Transistor-Differenzverstärker

Publications (2)

Publication Number Publication Date
IT8026758A0 true IT8026758A0 (it) 1980-12-18
IT1134789B IT1134789B (it) 1986-08-13

Family

ID=6089214

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8026758A IT1134789B (it) 1979-12-21 1980-12-18 Amplificatore differenziale a guadagno variabile

Country Status (11)

Country Link
US (1) US4360786A (it)
JP (1) JPS5698918A (it)
AU (1) AU537711B2 (it)
CA (1) CA1149028A (it)
DE (1) DE2951637C2 (it)
ES (1) ES497946A0 (it)
FR (1) FR2472303A1 (it)
GB (1) GB2066600B (it)
HK (1) HK47784A (it)
IT (1) IT1134789B (it)
SG (1) SG71783G (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3575506D1 (de) * 1984-06-07 1990-02-22 Siemens Ag Differenzverstaerkerschaltung.
DE3522416A1 (de) * 1985-06-22 1987-01-02 Standard Elektrik Lorenz Ag Regelbare breitbandverstaerkerschaltung
US4695806A (en) * 1986-04-15 1987-09-22 Tektronix, Inc. Precision remotely-switched attenuator
US5157350A (en) * 1991-10-31 1992-10-20 Harvey Rubens Analog multipliers
FR2689705B1 (fr) * 1992-04-01 1994-06-10 Sgs Thomson Microelectronics Circuit amplificateur video a commande de gain et d'alignement.
US5717360A (en) * 1996-04-16 1998-02-10 National Semiconductor Corporation High speed variable gain amplifier
US5703524A (en) * 1996-04-16 1997-12-30 Exar Corporation Piece-wise linear approximation of a dB linear programmable gain amplifier
US6566949B1 (en) * 2000-08-31 2003-05-20 International Business Machines Corporation Highly linear high-speed transconductance amplifier for Gm-C filters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS504425A (it) * 1972-10-12 1975-01-17
DE2723750A1 (de) * 1977-05-26 1978-12-07 Philips Patentverwaltung Einstellbarer transistor-verstaerker

Also Published As

Publication number Publication date
DE2951637A1 (de) 1981-07-02
FR2472303B1 (it) 1984-02-24
SG71783G (en) 1984-08-03
CA1149028A (en) 1983-06-28
GB2066600A (en) 1981-07-08
JPS5698918A (en) 1981-08-08
DE2951637C2 (de) 1981-10-01
JPS6361803B2 (it) 1988-11-30
ES8200801A1 (es) 1981-11-01
US4360786A (en) 1982-11-23
HK47784A (en) 1984-06-15
GB2066600B (en) 1983-09-21
ES497946A0 (es) 1981-11-01
IT1134789B (it) 1986-08-13
AU537711B2 (en) 1984-07-05
FR2472303A1 (fr) 1981-06-26
AU6556280A (en) 1981-06-25

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960111