DE1956692A1 - Verstaerkerstufenschaltung fuer einen logarithmischen Verstaerker - Google Patents

Verstaerkerstufenschaltung fuer einen logarithmischen Verstaerker

Info

Publication number
DE1956692A1
DE1956692A1 DE19691956692 DE1956692A DE1956692A1 DE 1956692 A1 DE1956692 A1 DE 1956692A1 DE 19691956692 DE19691956692 DE 19691956692 DE 1956692 A DE1956692 A DE 1956692A DE 1956692 A1 DE1956692 A1 DE 1956692A1
Authority
DE
Germany
Prior art keywords
amplifier
collector
transistor
voltage
linear
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
DE19691956692
Other languages
German (de)
English (en)
Inventor
Wolfgang Dipl-Ing Glathe
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 SA
Original Assignee
Schlumberger Overseas SA
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 SA filed Critical Schlumberger Overseas SA
Priority to DE19691956692 priority Critical patent/DE1956692A1/de
Priority to AU21875/70A priority patent/AU2187570A/en
Priority to FR7039848A priority patent/FR2069075A5/fr
Priority to US88447A priority patent/US3678294A/en
Publication of DE1956692A1 publication Critical patent/DE1956692A1/de
Pending 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 specially adapted therefor
    • G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor 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)
DE19691956692 1969-11-11 1969-11-11 Verstaerkerstufenschaltung fuer einen logarithmischen Verstaerker Pending DE1956692A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19691956692 DE1956692A1 (de) 1969-11-11 1969-11-11 Verstaerkerstufenschaltung fuer einen logarithmischen Verstaerker
AU21875/70A AU2187570A (en) 1969-11-11 1970-11-04 Amplifier stage circuit fora logarithmic amplifier
FR7039848A FR2069075A5 (https=) 1969-11-11 1970-11-05
US88447A US3678294A (en) 1969-11-11 1970-11-10 Amplifier stage circuit for a logarithmic amplifier

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE1956692A1 true DE1956692A1 (de) 1971-05-19

Family

ID=5750788

Family Applications (1)

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

Country Status (4)

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

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
US3678294A (en) 1972-07-18
FR2069075A5 (https=) 1971-09-03
AU2187570A (en) 1972-05-11

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