JPS5631211A - Differential amplifier - Google Patents

Differential amplifier

Info

Publication number
JPS5631211A
JPS5631211A JP10796779A JP10796779A JPS5631211A JP S5631211 A JPS5631211 A JP S5631211A JP 10796779 A JP10796779 A JP 10796779A JP 10796779 A JP10796779 A JP 10796779A JP S5631211 A JPS5631211 A JP S5631211A
Authority
JP
Japan
Prior art keywords
circuit
alpha
vni
threshold voltage
fet205
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
JP10796779A
Other languages
Japanese (ja)
Other versions
JPS634363B2 (en
Inventor
Tatsuji Asakawa
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP10796779A priority Critical patent/JPS5631211A/en
Publication of JPS5631211A publication Critical patent/JPS5631211A/en
Publication of JPS634363B2 publication Critical patent/JPS634363B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To obtain the extent of shift alpha of a very little power source dependency, by using two sets of differential amplifying circuits and by using one of them as the bias circuit of the other. CONSTITUTION:Differential amplifying circuit A consisting of MOSFETs 201-209 is the bias circuit of differential amplifying circuit B consisting of MOSFET 213- 219. In circuit A, the threshold voltage of FET205 is lower than that FET204 by alpha1. Since the gate voltage of FET205 and (the threshold voltage of FET204 - the threshold voltage of FET205) are VSS and alpha1 respectively, output Vb of circuit A becomes alpha1. In circuit B, the threshold voltage of FET215 is lower than that of FET214 by alpha. Though VI is compared with VNI for input making VI=VNI true if constant voltage alpha-0, VI is compared with VNI for input making VI=VNI+ alpha true. Since circuit B is used for generation of voltage alpha, power source dependency is very little.
JP10796779A 1979-08-24 1979-08-24 Differential amplifier Granted JPS5631211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10796779A JPS5631211A (en) 1979-08-24 1979-08-24 Differential amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10796779A JPS5631211A (en) 1979-08-24 1979-08-24 Differential amplifier

Publications (2)

Publication Number Publication Date
JPS5631211A true JPS5631211A (en) 1981-03-30
JPS634363B2 JPS634363B2 (en) 1988-01-28

Family

ID=14472600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10796779A Granted JPS5631211A (en) 1979-08-24 1979-08-24 Differential amplifier

Country Status (1)

Country Link
JP (1) JPS5631211A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445051A (en) * 1981-06-26 1984-04-24 Burroughs Corporation Field effect current mode logic gate
US5083051A (en) * 1990-02-26 1992-01-21 Motorola, Inc. Output driver circuit with improved output stage biasing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445051A (en) * 1981-06-26 1984-04-24 Burroughs Corporation Field effect current mode logic gate
US5083051A (en) * 1990-02-26 1992-01-21 Motorola, Inc. Output driver circuit with improved output stage biasing

Also Published As

Publication number Publication date
JPS634363B2 (en) 1988-01-28

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