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JPS55150613A - Voltage comparing circuit - Google Patents

Voltage comparing circuit

Info

Publication number
JPS55150613A
JPS55150613A JP5930379A JP5930379A JPS55150613A JP S55150613 A JPS55150613 A JP S55150613A JP 5930379 A JP5930379 A JP 5930379A JP 5930379 A JP5930379 A JP 5930379A JP S55150613 A JPS55150613 A JP S55150613A
Authority
JP
Japan
Prior art keywords
amplification part
load
linear amplification
potential
input
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
JP5930379A
Other languages
Japanese (ja)
Inventor
Tetsuya Iida
Kenro Sakagami
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 JP5930379A priority Critical patent/JPS55150613A/en
Priority to US06/148,724 priority patent/US4342004A/en
Priority to EP80102692A priority patent/EP0019279B1/en
Priority to DE8080102692T priority patent/DE3066555D1/en
Publication of JPS55150613A publication Critical patent/JPS55150613A/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
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
    • H03F3/345—DC amplifiers in which all stages are DC-coupled with semiconductor devices only with field-effect devices
    • 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
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45183—Long tailed pairs
    • 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
    • H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45371—Indexing scheme relating to differential amplifiers the AAC comprising parallel coupled multiple transistors at their source and gate and drain or at their base and emitter and collector, e.g. in a cascode dif amp, only those forming the composite common source transistor or the composite common emitter transistor respectively
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45398—Indexing scheme relating to differential amplifiers the AAC comprising a voltage generating circuit as bias circuit for the AAC
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45508—Indexing scheme relating to differential amplifiers the CSC comprising a voltage generating circuit as bias circuit for the CSC
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45658—Indexing scheme relating to differential amplifiers the LC comprising two diodes of current mirrors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45664—Indexing scheme relating to differential amplifiers the LC comprising one or more cascaded inverter stages as output stage at one output of the dif amp circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45722—Indexing scheme relating to differential amplifiers the LC comprising one or more source followers, as post buffer or driver stages, in cascade in the LC

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Manipulation Of Pulses (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To obtain a large voltage gain under the minimum state of an input offset voltage, by using a differential amplification part, a linear amplification part, and so on which are constituted by single channel-type MOSFETs. CONSTITUTION:In a circuit using N channel-type MOSFETs, the source potential of MOSFETQ16, Q17 agress with the source potential of MOSFETQ19 or Q18 in case of differential input V1=V2 if channel modulation of MOSFETQ15, Q20 for constant-current source is ignored, and this potential becomes output bias voltage Vd of output voltage Vod of differential amplification part 1, and this potential is used to bias gates of load MOSFETQ3, Q5,... of the linear amplification stage. Meanwhile, though the output of the differential amplification part is input to the gate of MOSFETQ1 of conversion part 5, drain potentials of load FETQ2, Q4,... are equal to one another and are on DC operating points of respective linear amplification stages because load MOSFETQ1, Q3,... and driving MOSFETsQ2, Q4,... have the same characteristic. Consquently, a large voltage gain can be obtained by increasing the number of amplfication stages of linear amplification part 3 without increment of the input offset voltage.
JP5930379A 1979-05-15 1979-05-15 Voltage comparing circuit Pending JPS55150613A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5930379A JPS55150613A (en) 1979-05-15 1979-05-15 Voltage comparing circuit
US06/148,724 US4342004A (en) 1979-05-15 1980-05-12 Voltage comparator circuit
EP80102692A EP0019279B1 (en) 1979-05-15 1980-05-14 Voltage comparator circuit
DE8080102692T DE3066555D1 (en) 1979-05-15 1980-05-14 Voltage comparator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5930379A JPS55150613A (en) 1979-05-15 1979-05-15 Voltage comparing circuit

Publications (1)

Publication Number Publication Date
JPS55150613A true JPS55150613A (en) 1980-11-22

Family

ID=13109463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5930379A Pending JPS55150613A (en) 1979-05-15 1979-05-15 Voltage comparing circuit

Country Status (1)

Country Link
JP (1) JPS55150613A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553052A (en) * 1982-04-23 1985-11-12 Nec Corporation High speed comparator circuit with input-offset compensation function
JPH02230585A (en) * 1989-01-30 1990-09-12 Internatl Business Mach Corp <Ibm> Magnetic disc device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553052A (en) * 1982-04-23 1985-11-12 Nec Corporation High speed comparator circuit with input-offset compensation function
JPH02230585A (en) * 1989-01-30 1990-09-12 Internatl Business Mach Corp <Ibm> Magnetic disc device

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