JPS5539432A - Differential amplifier circuit - Google Patents

Differential amplifier circuit

Info

Publication number
JPS5539432A
JPS5539432A JP11252778A JP11252778A JPS5539432A JP S5539432 A JPS5539432 A JP S5539432A JP 11252778 A JP11252778 A JP 11252778A JP 11252778 A JP11252778 A JP 11252778A JP S5539432 A JPS5539432 A JP S5539432A
Authority
JP
Japan
Prior art keywords
base
transistor
resistance
differential amplifier
transistors
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.)
Pending
Application number
JP11252778A
Other languages
Japanese (ja)
Inventor
Takashi Sugimoto
Hiroshi Takahashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11252778A priority Critical patent/JPS5539432A/en
Publication of JPS5539432A publication Critical patent/JPS5539432A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To improve the single signal input properties for the differential amplifier comprising a pair of transistors to which the base bias is applied each via the emitter follower, by removing the base resistance of one side and then providing the compensating resistance. CONSTITUTION:The base of the transistor of one of differential amplifiers 11 and 13 is connected directly to the emitter of emitter follower transistor 16, and the input signal is applied to the base of transistor 11. In this case, the rise of the base impedance is prevented for transistor 13, and then the reduction of the AC gain due to the feedback can be prevented. At the same time, resistance 20 is connected to the base of transistor 16 to prevent the increment of the offset voltage caused by the unbalanced base potential of transistors 11 and 13.
JP11252778A 1978-09-13 1978-09-13 Differential amplifier circuit Pending JPS5539432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11252778A JPS5539432A (en) 1978-09-13 1978-09-13 Differential amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11252778A JPS5539432A (en) 1978-09-13 1978-09-13 Differential amplifier circuit

Publications (1)

Publication Number Publication Date
JPS5539432A true JPS5539432A (en) 1980-03-19

Family

ID=14588867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11252778A Pending JPS5539432A (en) 1978-09-13 1978-09-13 Differential amplifier circuit

Country Status (1)

Country Link
JP (1) JPS5539432A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58122176A (en) * 1982-01-14 1983-07-20 Toshiba Corp Metallic foil fitting device
US4456887A (en) * 1980-09-25 1984-06-26 Pioneer Electronic Corporation Differential amplifier
JPS6167309A (en) * 1984-09-11 1986-04-07 Rohm Co Ltd Bias circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456887A (en) * 1980-09-25 1984-06-26 Pioneer Electronic Corporation Differential amplifier
JPS58122176A (en) * 1982-01-14 1983-07-20 Toshiba Corp Metallic foil fitting device
JPS6167309A (en) * 1984-09-11 1986-04-07 Rohm Co Ltd Bias circuit

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