AU2187570A - Amplifier stage circuit fora logarithmic amplifier - Google Patents

Amplifier stage circuit fora logarithmic amplifier

Info

Publication number
AU2187570A
AU2187570A AU21875/70A AU2187570A AU2187570A AU 2187570 A AU2187570 A AU 2187570A AU 21875/70 A AU21875/70 A AU 21875/70A AU 2187570 A AU2187570 A AU 2187570A AU 2187570 A AU2187570 A AU 2187570A
Authority
AU
Australia
Prior art keywords
amplifier
stage circuit
logarithmic
circuit fora
fora
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
AU21875/70A
Other languages
English (en)
Inventor
Wolfgang Claibe
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.)
Schlumberger Overseas Messgeratebau und Vertrieb GmbH
Original Assignee
Schlumberger Overseas Messgeratebau und Vertrieb GmbH
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 Schlumberger Overseas Messgeratebau und Vertrieb GmbH filed Critical Schlumberger Overseas Messgeratebau und Vertrieb GmbH
Publication of AU2187570A publication Critical patent/AU2187570A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
AU21875/70A 1969-11-11 1970-11-04 Amplifier stage circuit fora logarithmic amplifier Expired AU2187570A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEDE819566 1969-11-11
DE19691956692 DE1956692A1 (de) 1969-11-11 1969-11-11 Verstaerkerstufenschaltung fuer einen logarithmischen Verstaerker

Publications (1)

Publication Number Publication Date
AU2187570A true AU2187570A (en) 1972-05-11

Family

ID=5750788

Family Applications (1)

Application Number Title Priority Date Filing Date
AU21875/70A Expired AU2187570A (en) 1969-11-11 1970-11-04 Amplifier stage circuit fora logarithmic amplifier

Country Status (4)

Country Link
US (1) US3678294A (enExample)
AU (1) AU2187570A (enExample)
DE (1) DE1956692A1 (enExample)
FR (1) FR2069075A5 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891442A (en) * 1972-12-04 1975-06-24 Eastman Kodak Co Lithographic materials containing metal complexes
US4349755A (en) * 1980-02-11 1982-09-14 National Semiconductor Corporation Current product limit detector
US4322769A (en) * 1980-12-22 1982-03-30 International Business Machines Corporation Electric switch operation monitoring circuitry
US4716316A (en) * 1985-02-04 1987-12-29 Varian Associates, Inc. Full wave, self-detecting differential logarithmic rf amplifier
US4876499A (en) * 1986-03-12 1989-10-24 Beltone Electronics Corporation Differental voltage controlled exponential current source
US5414313A (en) * 1993-02-10 1995-05-09 Watkins Johnson Company Dual-mode logarithmic amplifier having cascaded stages
US6677775B2 (en) * 2001-01-10 2004-01-13 Analog Devices, Inc. Circuit testing device using a driver to perform electronics testing
US20070237207A1 (en) 2004-06-09 2007-10-11 National Semiconductor Corporation Beta variation cancellation in temperature sensors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935687A (en) * 1956-08-01 1960-05-03 Hughes Aircraft Co Logarithmic video amplifier
US3058057A (en) * 1960-12-16 1962-10-09 Bell Telephone Labor Inc Ionization manometer circuit

Also Published As

Publication number Publication date
FR2069075A5 (enExample) 1971-09-03
US3678294A (en) 1972-07-18
DE1956692A1 (de) 1971-05-19

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