GB2078462A - Nmos amplifier using unimplanted transistors - Google Patents

Nmos amplifier using unimplanted transistors

Info

Publication number
GB2078462A
GB2078462A GB8127250A GB8127250A GB2078462A GB 2078462 A GB2078462 A GB 2078462A GB 8127250 A GB8127250 A GB 8127250A GB 8127250 A GB8127250 A GB 8127250A GB 2078462 A GB2078462 A GB 2078462A
Authority
GB
United Kingdom
Prior art keywords
amplifier
transistors
unimplanted
transconductance transistors
nmos 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.)
Withdrawn
Application number
GB8127250A
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.)
CTU of Delaware Inc
Original Assignee
Mostek Corp
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 Mostek Corp filed Critical Mostek Corp
Publication of GB2078462A publication Critical patent/GB2078462A/en
Withdrawn legal-status Critical Current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)
  • Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
  • Insulated Gate Type Field-Effect Transistor (AREA)

Abstract

An amplifier (20) is provided and is fabricated using NMOS technology to provide for an amplifier having low noise operating characteristics. The amplifier (20) includes transconductance transistors (22, 24) for receiving a differential input signal. A current source (30) is provided for biasing the amplifier (20). A load (26, 28) is interconnected to the transconductance transistors (22, 24) for generating an amplified output signal. The transconductance transistors (22, 24) comprise unimplanted semiconductor transistor devices for substantially eliminating the generation of low frequency noise in the operation of the amplifier (20).
GB8127250A 1980-01-11 1980-05-05 Nmos amplifier using unimplanted transistors Withdrawn GB2078462A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11127680A 1980-01-11 1980-01-11

Publications (1)

Publication Number Publication Date
GB2078462A true GB2078462A (en) 1982-01-06

Family

ID=22337558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8127250A Withdrawn GB2078462A (en) 1980-01-11 1980-05-05 Nmos amplifier using unimplanted transistors

Country Status (7)

Country Link
JP (1) JPS56501904A (en)
CA (1) CA1161965A (en)
DE (1) DE3050202A1 (en)
FR (1) FR2473791B1 (en)
GB (1) GB2078462A (en)
NL (1) NL8020488A (en)
WO (1) WO1981002078A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2273837B (en) * 1992-12-11 1996-03-13 Marconi Gec Ltd Amplifier devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550256A (en) * 1967-12-21 1970-12-29 Fairchild Camera Instr Co Control of surface inversion of p- and n-type silicon using dense dielectrics
US3800411A (en) * 1972-05-22 1974-04-02 Litton Systems Inc Method of forming a stable mnos igfet
US3898105A (en) * 1973-10-25 1975-08-05 Mostek Corp Method for making FET circuits
US3970951A (en) * 1975-11-12 1976-07-20 International Business Machines Corporation Differential amplifier with constant gain
JPS53112047A (en) * 1977-03-11 1978-09-30 Kenkichi Tsukamoto Audio amplifier
DE2827330C2 (en) * 1978-06-22 1982-10-21 Deutsche Itt Industries Gmbh, 7800 Freiburg Method for reducing broadband noise

Also Published As

Publication number Publication date
NL8020488A (en) 1981-12-01
JPS56501904A (en) 1981-12-24
CA1161965A (en) 1984-02-07
WO1981002078A1 (en) 1981-07-23
FR2473791A1 (en) 1981-07-17
DE3050202A1 (en) 1982-04-22
FR2473791B1 (en) 1985-07-19

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)