DE60042101D1 - Differenzoperationsverstärker - Google Patents

Differenzoperationsverstärker

Info

Publication number
DE60042101D1
DE60042101D1 DE60042101T DE60042101T DE60042101D1 DE 60042101 D1 DE60042101 D1 DE 60042101D1 DE 60042101 T DE60042101 T DE 60042101T DE 60042101 T DE60042101 T DE 60042101T DE 60042101 D1 DE60042101 D1 DE 60042101D1
Authority
DE
Germany
Prior art keywords
amplifier
common mode
operational amplifier
low voltage
differential operational
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 - Lifetime
Application number
DE60042101T
Other languages
English (en)
Inventor
Krishnasawamy Nagaraj
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Application granted granted Critical
Publication of DE60042101D1 publication Critical patent/DE60042101D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • 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
    • H03F3/45695—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 feedforward means
    • H03F3/45699—Measuring at the input circuit of the differential amplifier
    • H03F3/45704—Controlling the input 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
    • H03F3/005—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements using switched capacitors, e.g. dynamic amplifiers; using switched capacitors as resistors in differential amplifiers
    • 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
    • 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
    • H03F2203/45394—Indexing scheme relating to differential amplifiers the AAC of the dif amp comprising FETs whose sources are not coupled, i.e. the AAC being a pseudo-differential amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
  • Logic Circuits (AREA)
DE60042101T 1999-10-25 2000-10-25 Differenzoperationsverstärker Expired - Lifetime DE60042101D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16128299P 1999-10-25 1999-10-25
US09/655,697 US6529070B1 (en) 1999-10-25 2000-09-06 Low-voltage, broadband operational amplifier

Publications (1)

Publication Number Publication Date
DE60042101D1 true DE60042101D1 (de) 2009-06-10

Family

ID=26857687

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60042101T Expired - Lifetime DE60042101D1 (de) 1999-10-25 2000-10-25 Differenzoperationsverstärker

Country Status (9)

Country Link
US (2) US6529070B1 (de)
EP (1) EP1096671B1 (de)
JP (1) JP2001230637A (de)
KR (1) KR100765591B1 (de)
AT (1) ATE430404T1 (de)
DE (1) DE60042101D1 (de)
IL (1) IL139260A0 (de)
SG (1) SG83825A1 (de)
TW (1) TW518817B (de)

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US7471148B2 (en) * 2007-05-21 2008-12-30 Sekio Epson Corporation Differential low noise amplifier (LNA) with common mode feedback and gain control
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Also Published As

Publication number Publication date
EP1096671B1 (de) 2009-04-29
US20030001674A1 (en) 2003-01-02
KR100765591B1 (ko) 2007-10-09
KR20010067342A (ko) 2001-07-12
US6529070B1 (en) 2003-03-04
US6624698B2 (en) 2003-09-23
IL139260A0 (en) 2001-11-25
ATE430404T1 (de) 2009-05-15
SG83825A1 (en) 2001-10-16
EP1096671A1 (de) 2001-05-02
JP2001230637A (ja) 2001-08-24
TW518817B (en) 2003-01-21

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