DE69705924T2 - Selbstkalibriersystem für logarithmische Verstärker - Google Patents

Selbstkalibriersystem für logarithmische Verstärker

Info

Publication number
DE69705924T2
DE69705924T2 DE69705924T DE69705924T DE69705924T2 DE 69705924 T2 DE69705924 T2 DE 69705924T2 DE 69705924 T DE69705924 T DE 69705924T DE 69705924 T DE69705924 T DE 69705924T DE 69705924 T2 DE69705924 T2 DE 69705924T2
Authority
DE
Germany
Prior art keywords
self
calibration system
logarithmic amplifiers
logarithmic
amplifiers
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 - Fee Related
Application number
DE69705924T
Other languages
English (en)
Other versions
DE69705924D1 (de
Inventor
Vittorio Comino
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of DE69705924D1 publication Critical patent/DE69705924D1/de
Application granted granted Critical
Publication of DE69705924T2 publication Critical patent/DE69705924T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers

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)
  • Microwave Amplifiers (AREA)
DE69705924T 1997-01-03 1997-12-16 Selbstkalibriersystem für logarithmische Verstärker Expired - Fee Related DE69705924T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/775,989 US5805011A (en) 1997-01-03 1997-01-03 Self-calibration system for logarithmic amplifiers

Publications (2)

Publication Number Publication Date
DE69705924D1 DE69705924D1 (de) 2001-09-06
DE69705924T2 true DE69705924T2 (de) 2002-04-11

Family

ID=25106146

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69705924T Expired - Fee Related DE69705924T2 (de) 1997-01-03 1997-12-16 Selbstkalibriersystem für logarithmische Verstärker

Country Status (5)

Country Link
US (1) US5805011A (de)
EP (1) EP0852427B1 (de)
JP (1) JP3428886B2 (de)
CA (1) CA2222339C (de)
DE (1) DE69705924T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5877645A (en) * 1997-08-08 1999-03-02 Lucent Technologies Inc. Offset compensation circuit for integrated logarithmic amplifiers
JP2001274641A (ja) * 2000-03-27 2001-10-05 Toshiba Corp 差動増幅器及びこれを用いたフィルタ回路
US6335661B1 (en) * 2000-05-11 2002-01-01 Maxim Integrated Products, Inc. Balanced input for temperature sensor
IT1317567B1 (it) * 2000-05-25 2003-07-09 St Microelectronics Srl Circuito di calibrazione di una tensione di riferimento a band-gap.
US6822433B1 (en) * 2000-09-09 2004-11-23 Analog Devices, Inc. Gain and phase detector having dual logarithmic amplifiers
US6507233B1 (en) * 2001-08-02 2003-01-14 Texas Instruments Incorporated Method and circuit for compensating VT induced drift in monolithic logarithmic amplifier
US6911859B2 (en) * 2003-04-28 2005-06-28 Bae Systems Information And Electronic Systems Integration Inc. Method and apparatus for conversionless direct detection
US20050057298A1 (en) * 2003-09-16 2005-03-17 Kevin Gamble Demodulating logarithmic amplifier and method of amplification
US7002395B2 (en) * 2003-09-16 2006-02-21 Yuantonix, Inc. Demodulating logarithmic amplifier
US20050135520A1 (en) * 2003-12-23 2005-06-23 Kevin Gamble Multi-branch radio frequency amplifying apparatus and method
US7196569B1 (en) * 2005-02-14 2007-03-27 Analog Devices, Inc. Feedback compensation for logarithmic amplifiers
CN101771387B (zh) * 2010-02-10 2012-06-27 苏州科山微电子科技有限公司 一种基于cmos精确电压放大器的对数放大器
US8970287B1 (en) 2013-08-15 2015-03-03 Silicon Laboratories Inc. Apparatus and method of adjusting analog parameters for extended temperature operation
US9287831B2 (en) 2013-12-23 2016-03-15 Analog Devices Global Temperature stabilized circuitry
US9184737B1 (en) * 2014-06-17 2015-11-10 Broadcom Corporation Process mitigated clock skew adjustment
US20230344398A1 (en) * 2022-04-21 2023-10-26 Infineon Technologies Ag Logarithmic Amplifiers in Silicon Microphones

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4990803A (en) * 1989-03-27 1991-02-05 Analog Devices, Inc. Logarithmic amplifier
US5448200A (en) * 1991-12-18 1995-09-05 At&T Corp. Differential comparator with differential threshold for local area networks or the like
US5287070A (en) * 1992-09-02 1994-02-15 Ncr Corporation Balanced voltage comparator
US5296761A (en) * 1992-11-23 1994-03-22 North American Philips Corporation Temperature-compensated logarithmic detector having a wide dynamic range
JP2836452B2 (ja) * 1993-07-14 1998-12-14 日本電気株式会社 対数増幅回路
JPH07106875A (ja) * 1993-09-30 1995-04-21 Nec Corp 半導体集積回路
US5606272A (en) * 1995-10-10 1997-02-25 Philips Electronics North America Corporation Comparator with smooth start-up for high frequencies

Also Published As

Publication number Publication date
EP0852427A3 (de) 1999-12-29
CA2222339A1 (en) 1998-07-03
EP0852427A2 (de) 1998-07-08
DE69705924D1 (de) 2001-09-06
JP3428886B2 (ja) 2003-07-22
US5805011A (en) 1998-09-08
MX9710467A (es) 1998-07-31
JPH10294625A (ja) 1998-11-04
EP0852427B1 (de) 2001-08-01
CA2222339C (en) 2000-02-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee