JPS5693408A - Variable gain amplifier - Google Patents

Variable gain amplifier

Info

Publication number
JPS5693408A
JPS5693408A JP17069679A JP17069679A JPS5693408A JP S5693408 A JPS5693408 A JP S5693408A JP 17069679 A JP17069679 A JP 17069679A JP 17069679 A JP17069679 A JP 17069679A JP S5693408 A JPS5693408 A JP S5693408A
Authority
JP
Japan
Prior art keywords
operational amplifier
resistance
terminal
variable gain
gain amplifier
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
JP17069679A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6313572B2 (de
Inventor
Kunihiko Yoshimura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP17069679A priority Critical patent/JPS5693408A/ja
Publication of JPS5693408A publication Critical patent/JPS5693408A/ja
Publication of JPS6313572B2 publication Critical patent/JPS6313572B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals

Landscapes

  • Analogue/Digital Conversion (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP17069679A 1979-12-27 1979-12-27 Variable gain amplifier Granted JPS5693408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17069679A JPS5693408A (en) 1979-12-27 1979-12-27 Variable gain amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17069679A JPS5693408A (en) 1979-12-27 1979-12-27 Variable gain amplifier

Publications (2)

Publication Number Publication Date
JPS5693408A true JPS5693408A (en) 1981-07-29
JPS6313572B2 JPS6313572B2 (de) 1988-03-26

Family

ID=15909695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17069679A Granted JPS5693408A (en) 1979-12-27 1979-12-27 Variable gain amplifier

Country Status (1)

Country Link
JP (1) JPS5693408A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859221U (ja) * 1981-10-16 1983-04-21 横河電機株式会社 増幅器の利得切換え回路
JPS58218212A (ja) * 1982-06-11 1983-12-19 Nec Corp 可変利得増幅器
JPS5922411A (ja) * 1982-07-28 1984-02-04 Shimadzu Corp 増幅回路
JPS60167415U (ja) * 1984-04-12 1985-11-07 横河電機株式会社 帰還増幅回路
JPS60259007A (ja) * 1984-06-05 1985-12-21 Comput Basic Mach Technol Res Assoc 可変利得増幅器
JPS62173809A (ja) * 1986-01-28 1987-07-30 Fujitsu Ltd 増幅装置
WO2003084059A1 (fr) * 2002-03-28 2003-10-09 Thine Electronics, Inc. Circuit integre a semi-conducteur
JP2010193233A (ja) * 2009-02-19 2010-09-02 Rohm Co Ltd 利得可変増幅器

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859221U (ja) * 1981-10-16 1983-04-21 横河電機株式会社 増幅器の利得切換え回路
JPH0233388Y2 (de) * 1981-10-16 1990-09-07
JPS58218212A (ja) * 1982-06-11 1983-12-19 Nec Corp 可変利得増幅器
JPH0226802B2 (de) * 1982-06-11 1990-06-13 Nippon Electric Co
JPS5922411A (ja) * 1982-07-28 1984-02-04 Shimadzu Corp 増幅回路
JPS60167415U (ja) * 1984-04-12 1985-11-07 横河電機株式会社 帰還増幅回路
JPH0441618Y2 (de) * 1984-04-12 1992-09-30
JPS60259007A (ja) * 1984-06-05 1985-12-21 Comput Basic Mach Technol Res Assoc 可変利得増幅器
JPS62173809A (ja) * 1986-01-28 1987-07-30 Fujitsu Ltd 増幅装置
WO2003084059A1 (fr) * 2002-03-28 2003-10-09 Thine Electronics, Inc. Circuit integre a semi-conducteur
JP2010193233A (ja) * 2009-02-19 2010-09-02 Rohm Co Ltd 利得可変増幅器

Also Published As

Publication number Publication date
JPS6313572B2 (de) 1988-03-26

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