CA1203628A - Circuit logarithmique a compensation des effets dus a la temperature - Google Patents

Circuit logarithmique a compensation des effets dus a la temperature

Info

Publication number
CA1203628A
CA1203628A CA000443011A CA443011A CA1203628A CA 1203628 A CA1203628 A CA 1203628A CA 000443011 A CA000443011 A CA 000443011A CA 443011 A CA443011 A CA 443011A CA 1203628 A CA1203628 A CA 1203628A
Authority
CA
Canada
Prior art keywords
pair
transistors
circuit
signal
current
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
CA000443011A
Other languages
English (en)
Inventor
Barrie Gilbert
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
Analog Devices 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 Analog Devices Inc filed Critical Analog Devices Inc
Application granted granted Critical
Publication of CA1203628A publication Critical patent/CA1203628A/fr
Expired 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
    • 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)
  • Measurement Of Current Or Voltage (AREA)
  • Manipulation Of Pulses (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
CA000443011A 1983-01-03 1983-12-09 Circuit logarithmique a compensation des effets dus a la temperature Expired CA1203628A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45524083A 1983-01-03 1983-01-03
US455,240 1983-01-03

Publications (1)

Publication Number Publication Date
CA1203628A true CA1203628A (fr) 1986-04-22

Family

ID=23808001

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000443011A Expired CA1203628A (fr) 1983-01-03 1983-12-09 Circuit logarithmique a compensation des effets dus a la temperature

Country Status (6)

Country Link
JP (1) JPH0670799B2 (fr)
CA (1) CA1203628A (fr)
DE (1) DE3347683A1 (fr)
FR (1) FR2542891A1 (fr)
GB (1) GB2133597B (fr)
NL (1) NL8400018A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684898A (en) * 1985-05-15 1987-08-04 Signetics Corporation Temperature and process variation compensation for a delta demodulation decoder
IT1221800B (it) * 1988-05-04 1990-07-12 Parking Group Spa Impianto per il parcheggio di autovetture su piu'livelli
JPH0671185B2 (ja) * 1988-07-20 1994-09-07 三洋電機株式会社 対数増幅回路
US5200655A (en) * 1991-06-03 1993-04-06 Motorola, Inc. Temperature-independent exponential converter
GB9313840D0 (en) * 1993-07-05 1993-08-25 Philips Electronics Uk Ltd Cascaded amplifier
CN1048192C (zh) * 1995-03-16 2000-01-12 中国石化齐鲁石油化工公司 一种用于从石油和天然气加工过程中产生的硫化氢中回收硫磺的二氧化钛催化剂

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3790819A (en) * 1972-03-17 1974-02-05 Perkin Elmer Corp Log amplifier apparatus
US3935478A (en) * 1973-08-10 1976-01-27 Sony Corporation Non-linear amplifier
GB1583993A (en) * 1977-05-16 1981-02-04 Matsushita Electric Ind Co Ltd Signal processing circuits

Also Published As

Publication number Publication date
JPS59136871A (ja) 1984-08-06
GB2133597A (en) 1984-07-25
JPH0670799B2 (ja) 1994-09-07
NL8400018A (nl) 1984-08-01
FR2542891A1 (fr) 1984-09-21
GB2133597B (en) 1987-02-18
DE3347683A1 (de) 1984-07-05
GB8333543D0 (en) 1984-01-25

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Legal Events

Date Code Title Description
MKEX Expiry