JPS5698918A - Variable gain differential amplifier circuit - Google Patents

Variable gain differential amplifier circuit

Info

Publication number
JPS5698918A
JPS5698918A JP18029480A JP18029480A JPS5698918A JP S5698918 A JPS5698918 A JP S5698918A JP 18029480 A JP18029480 A JP 18029480A JP 18029480 A JP18029480 A JP 18029480A JP S5698918 A JPS5698918 A JP S5698918A
Authority
JP
Japan
Prior art keywords
amplifier circuit
differential amplifier
variable gain
gain differential
variable
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.)
Granted
Application number
JP18029480A
Other languages
English (en)
Other versions
JPS6361803B2 (ja
Inventor
Haintsu Reefuerutsu Kaaru
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of JPS5698918A publication Critical patent/JPS5698918A/ja
Publication of JPS6361803B2 publication Critical patent/JPS6361803B2/ja
Granted legal-status Critical Current

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

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
JP18029480A 1979-12-21 1980-12-19 Variable gain differential amplifier circuit Granted JPS5698918A (en)

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
JPS5698918A true JPS5698918A (en) 1981-08-08
JPS6361803B2 JPS6361803B2 (ja) 1988-11-30

Family

ID=6089214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18029480A Granted JPS5698918A (en) 1979-12-21 1980-12-19 Variable gain differential amplifier circuit

Country Status (11)

Country Link
US (1) US4360786A (ja)
JP (1) JPS5698918A (ja)
AU (1) AU537711B2 (ja)
CA (1) CA1149028A (ja)
DE (1) DE2951637C2 (ja)
ES (1) ES8200801A1 (ja)
FR (1) FR2472303A1 (ja)
GB (1) GB2066600B (ja)
HK (1) HK47784A (ja)
IT (1) IT1134789B (ja)
SG (1) SG71783G (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE49687T1 (de) * 1984-06-07 1990-02-15 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.
US5703524A (en) * 1996-04-16 1997-12-30 Exar Corporation Piece-wise linear approximation of a dB linear programmable gain amplifier
US5717360A (en) * 1996-04-16 1998-02-10 National Semiconductor Corporation High speed variable gain amplifier
US6566949B1 (en) * 2000-08-31 2003-05-20 International Business Machines Corporation Highly linear high-speed transconductance amplifier for Gm-C filters

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS504425A (ja) * 1972-10-12 1975-01-17

Family Cites Families (1)

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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS504425A (ja) * 1972-10-12 1975-01-17

Also Published As

Publication number Publication date
CA1149028A (en) 1983-06-28
AU537711B2 (en) 1984-07-05
ES497946A0 (es) 1981-11-01
HK47784A (en) 1984-06-15
AU6556280A (en) 1981-06-25
FR2472303A1 (fr) 1981-06-26
IT1134789B (it) 1986-08-13
ES8200801A1 (es) 1981-11-01
IT8026758A0 (it) 1980-12-18
GB2066600B (en) 1983-09-21
DE2951637C2 (de) 1981-10-01
JPS6361803B2 (ja) 1988-11-30
GB2066600A (en) 1981-07-08
FR2472303B1 (ja) 1984-02-24
US4360786A (en) 1982-11-23
SG71783G (en) 1984-08-03
DE2951637A1 (de) 1981-07-02

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