DE3567135D1 - Jfet active load input stage - Google Patents

Jfet active load input stage

Info

Publication number
DE3567135D1
DE3567135D1 DE8585301899T DE3567135T DE3567135D1 DE 3567135 D1 DE3567135 D1 DE 3567135D1 DE 8585301899 T DE8585301899 T DE 8585301899T DE 3567135 T DE3567135 T DE 3567135T DE 3567135 D1 DE3567135 D1 DE 3567135D1
Authority
DE
Germany
Prior art keywords
input stage
load input
active load
jfet
jfet active
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.)
Expired
Application number
DE8585301899T
Other languages
English (en)
Inventor
James R Butler
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.)
Analog Devices Inc
Original Assignee
Precision Monolithics Inc
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 Precision Monolithics Inc filed Critical Precision Monolithics Inc
Application granted granted Critical
Publication of DE3567135D1 publication Critical patent/DE3567135D1/de
Expired 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
    • H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
    • 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
    • H03F3/45278—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using BiFET transistors as the active amplifying circuit
    • H03F3/45282—Long tailed pairs
    • H03F3/45291—Folded cascode stages
    • 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
    • H03F3/45376—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using junction FET transistors as the active amplifying circuit
    • H03F3/45381—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
    • H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
    • H03F3/45636—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by using feedback means
    • H03F3/45641—Measuring at the loading circuit of the differential amplifier
    • H03F3/45654—Controlling the active amplifying circuit of the differential amplifier
    • 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
    • H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
    • H03F3/45636—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by using feedback means
    • H03F3/45641—Measuring at the loading circuit of the differential amplifier
    • H03F3/45659—Controlling the loading circuit of the differential amplifier
    • 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
    • H03F2203/45304—Indexing scheme relating to differential amplifiers the common gate stage of a BIFET cascode dif amp being implemented fully by FETs
    • 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
    • H03F2203/45648—Indexing scheme relating to differential amplifiers the LC comprising two current sources, which are not cascode current sources
DE8585301899T 1984-05-31 1985-03-19 Jfet active load input stage Expired DE3567135D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/615,996 US4687984A (en) 1984-05-31 1984-05-31 JFET active load input stage

Publications (1)

Publication Number Publication Date
DE3567135D1 true DE3567135D1 (en) 1989-02-02

Family

ID=24467632

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585301899T Expired DE3567135D1 (en) 1984-05-31 1985-03-19 Jfet active load input stage

Country Status (4)

Country Link
US (1) US4687984A (de)
EP (1) EP0164182B1 (de)
JP (1) JPS60257610A (de)
DE (1) DE3567135D1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4868427A (en) * 1987-10-30 1989-09-19 Gazelle Microcircuits, Inc. ECL to TTL circuit
US5323121A (en) * 1993-06-29 1994-06-21 Analog Devices, Inc. Folded cascode operational amplifier with gain enhancing base current compensation
US5523718A (en) * 1994-08-03 1996-06-04 Analog Devices, Inc. Balanced double-folded cascode operational amplifier
US5420540A (en) * 1994-08-03 1995-05-30 Analog Devices, Inc. Double-folded cascode operational amplifier
US5952882A (en) * 1998-01-22 1999-09-14 Maxim Integrated Products, Inc. Gain enhancement for operational amplifiers
KR101072611B1 (ko) * 2003-05-23 2011-10-11 페어차일드코리아반도체 주식회사 온도에 독립적인 전류전원 회로
KR100819119B1 (ko) * 2006-01-09 2008-04-04 삼성전자주식회사 초광대역 응용을 위한 필터의 ｃｍｏｓ 증폭기 및 그 방법
US8786359B2 (en) * 2007-12-12 2014-07-22 Sandisk Technologies Inc. Current mirror device and method
CN113641206B (zh) * 2021-10-15 2021-12-28 成都时识科技有限公司 配置滤波功能的集成电路

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3851270A (en) * 1968-03-06 1974-11-26 R Vosteen Transistorized operational amplifier
US3852679A (en) * 1972-12-26 1974-12-03 Rca Corp Current mirror amplifiers
US3873933A (en) * 1973-11-08 1975-03-25 Rca Corp Circuit with adjustable gain current mirror amplifier
US3947778A (en) * 1974-09-11 1976-03-30 Motorola, Inc. Differential amplifier
JPS5297046U (de) * 1976-01-19 1977-07-20
JPS59103409A (ja) * 1982-12-03 1984-06-14 Toshiba Corp カレントミラ−回路
JPS59119909A (ja) * 1982-12-25 1984-07-11 Fujitsu Ltd 能動負荷回路
IT1212748B (it) * 1983-06-03 1989-11-30 Ates Componenti Elettron Stadio differenziale perfezionato, in particolare per filtri attivi.

Also Published As

Publication number Publication date
EP0164182B1 (de) 1988-12-28
US4687984A (en) 1987-08-18
EP0164182A1 (de) 1985-12-11
JPH0369441B2 (de) 1991-11-01
JPS60257610A (ja) 1985-12-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ANALOG DEVICES INC., NORWOOD, MASS., US

8339 Ceased/non-payment of the annual fee