JPH04506286A - 対数増幅器 - Google Patents
対数増幅器Info
- Publication number
- JPH04506286A JPH04506286A JP2505702A JP50570290A JPH04506286A JP H04506286 A JPH04506286 A JP H04506286A JP 2505702 A JP2505702 A JP 2505702A JP 50570290 A JP50570290 A JP 50570290A JP H04506286 A JPH04506286 A JP H04506286A
- Authority
- JP
- Japan
- Prior art keywords
- current
- output
- logarithmic
- converter
- gain
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 238000013016 damping Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 23
- 238000013461 design Methods 0.000 description 20
- 230000004044 response Effects 0.000 description 15
- 230000000670 limiting effect Effects 0.000 description 11
- 238000001514 detection method Methods 0.000 description 9
- 238000012546 transfer Methods 0.000 description 7
- 239000000523 sample Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 235000012905 Brassica oleracea var viridis Nutrition 0.000 description 1
- 244000064816 Brassica oleracea var. acephala Species 0.000 description 1
- 241000282994 Cervidae Species 0.000 description 1
- 241001414489 Hyas Species 0.000 description 1
- 102220475869 Keratin, type I cytoskeletal 10_R12A_mutation Human genes 0.000 description 1
- 241000287462 Phalacrocorax carbo Species 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- OFHCOWSQAMBJIW-AVJTYSNKSA-N alfacalcidol Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C\C=C1\C[C@@H](O)C[C@H](O)C1=C OFHCOWSQAMBJIW-AVJTYSNKSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/001—Volume compression or expansion in amplifiers without controlling loop
Landscapes
- Amplifiers (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
Description
Claims (6)
- 1.瞬時入力信号に応答して対応する対数値を表わす出力信号を与える対数コン バータであって、該コンバータの性能が少なくとも一部において対数インターセ プト値および対数スロープを特徴とする対数コンバータにおいて、a.各々が、 (i)入出力を有するトランジスタ増幅器と、(ii)全波検出器と を有する複数の利得段と、 b.入力において入力信号を受取るように接続された第1の増幅器と、c.入力 において前記増幅器の別のものからの出力を受取るように接続された他の各増幅 器とを設け、 d.前記全波検出器の各々が電流出力を与え、該検出器の全ての電流出力が加算 されて前記コンバータ出力を生じ、 e.各増幅器と関連して、該増幅器の利得を増幅器トランジスタの温度変動およ び製造公差に対して実質的に不感応にさせる安定化手段を設けてなることを特徴 とする対数コンバータ。
- 2.前記トランジスタ増幅器がテール電流によりバイアスされる差動増幅器であ り、前記安定化手段が各増幅器に対するテール電流を生じる手段を含み、該テー ル電流は絶対温度に実質的に比例することを特徴とする請求項1記載の対数コン バータ。
- 3.前記テール電流を生じる前記手段が、増幅トランジスタの電流利得およびそ の固有抵抗の関数であるテール電流を生じることを特徴とする請求項2記載の対 数コンバータ。
- 4.検出器の出力電流への温度依存性を補償して対数インターセプトを安定化す る手段を更に設けてなることを特徴とする請求項1乃至3のいずれかに記載の対 数コンバータ。
- 5.前記補償手段が前記第1の増幅器の入力側に減衰器を含み、該減衰器は絶対 温度に比例する減衰率を生じることを特徴とする請求項4記載の対数コンバータ 。
- 6.前記補償手段が、温度変動による加算電流における変化を補償する電流を加 算された検出器出力冠流に合成する手段を含むことを特徴とする請求項4記載の 対数コンバータ。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US328,966 | 1989-03-27 | ||
| US07/328,966 US4990803A (en) | 1989-03-27 | 1989-03-27 | Logarithmic amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04506286A true JPH04506286A (ja) | 1992-10-29 |
| JP3251939B2 JP3251939B2 (ja) | 2002-01-28 |
Family
ID=23283250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50570290A Expired - Lifetime JP3251939B2 (ja) | 1989-03-27 | 1990-03-21 | 対数増幅器 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4990803A (ja) |
| EP (1) | EP0465576B1 (ja) |
| JP (1) | JP3251939B2 (ja) |
| DE (1) | DE69003385T2 (ja) |
| WO (1) | WO1990011645A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0730353A (ja) * | 1993-07-14 | 1995-01-31 | Nec Corp | 対数増幅回路 |
Families Citing this family (60)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2643516B2 (ja) * | 1990-02-01 | 1997-08-20 | 日本電気株式会社 | 対数増幅回路 |
| FR2667703A1 (fr) * | 1990-10-05 | 1992-04-10 | Philips Composants | Source de courant a rapport donne entre courant de sortie et d'entree. |
| JP2687713B2 (ja) * | 1990-10-30 | 1997-12-08 | 日本電気株式会社 | 対数増幅回路 |
| JP2995886B2 (ja) * | 1991-02-28 | 1999-12-27 | 日本電気株式会社 | 対数増幅回路 |
| EP0510227B1 (de) * | 1991-04-24 | 1996-03-27 | Siemens Aktiengesellschaft | Schaltungsanordnung zur Signalbegrenzung und Feldstärkendetektion |
| ES2136066T3 (es) * | 1991-05-23 | 1999-11-16 | Nec Corp | Amplificador logaritmico de frecuencia intermedia. |
| EP0517305B1 (en) * | 1991-06-03 | 1995-11-22 | Koninklijke Philips Electronics N.V. | Logarithmic amplifier and detector |
| US5221907A (en) * | 1991-06-03 | 1993-06-22 | International Business Machines Corporation | Pseudo logarithmic analog step adder |
| US5471132A (en) * | 1991-09-30 | 1995-11-28 | Sgs-Thomson Microelectronics, Inc. | Logarithmic and exponential converter circuits |
| US5444361A (en) * | 1992-09-23 | 1995-08-22 | Sgs-Thomson Microelectronics, Inc. | Wideband linear and logarithmic signal conversion circuits |
| US5345185A (en) * | 1992-04-14 | 1994-09-06 | Analog Devices, Inc. | Logarithmic amplifier gain stage |
| US5298811A (en) * | 1992-08-03 | 1994-03-29 | Analog Devices, Inc. | Synchronous logarithmic amplifier |
| JP3037004B2 (ja) * | 1992-12-08 | 2000-04-24 | 日本電気株式会社 | マルチプライヤ |
| US5414313A (en) * | 1993-02-10 | 1995-05-09 | Watkins Johnson Company | Dual-mode logarithmic amplifier having cascaded stages |
| GB9313840D0 (en) * | 1993-07-05 | 1993-08-25 | Philips Electronics Uk Ltd | Cascaded amplifier |
| US5451895A (en) * | 1993-10-22 | 1995-09-19 | Lumisys, Inc. | Wideband amplifier with logarithmic output characteristic |
| JP2606599B2 (ja) * | 1994-09-09 | 1997-05-07 | 日本電気株式会社 | 対数増幅回路 |
| US5481218A (en) * | 1994-09-30 | 1996-01-02 | Telefonaktiebolaget Lm Ericsson | Logarithmic converter |
| US5572166A (en) * | 1995-06-07 | 1996-11-05 | Analog Devices, Inc. | Linear-in-decibel variable gain amplifier |
| US5589791A (en) * | 1995-06-09 | 1996-12-31 | Analog Devices, Inc. | Variable gain mixer having improved linearity and lower switching noise |
| US5677561A (en) * | 1995-12-29 | 1997-10-14 | Maxim Integrated Products, Inc. | Temperature compensated logarithmic detector |
| US5754013A (en) * | 1996-12-30 | 1998-05-19 | Honeywell Inc. | Apparatus for providing a nonlinear output in response to a linear input by using linear approximation and for use in a lighting control system |
| US5805011A (en) * | 1997-01-03 | 1998-09-08 | Lucent Technologies Inc. | Self-calibration system for logarithmic amplifiers |
| US6154664A (en) * | 1998-06-24 | 2000-11-28 | Conexant System, Inc. | Dual band cellular phone with two power amplifiers and power control circuit therefore |
| US6323732B1 (en) | 2000-07-18 | 2001-11-27 | Ericsson Inc. | Differential amplifiers having β compensation biasing circuits therein |
| US6549071B1 (en) * | 2000-09-12 | 2003-04-15 | Silicon Laboratories, Inc. | Power amplifier circuitry and method using an inductance coupled to power amplifier switching devices |
| US6917245B2 (en) | 2000-09-12 | 2005-07-12 | Silicon Laboratories, Inc. | Absolute power detector |
| JP2002232249A (ja) * | 2001-02-01 | 2002-08-16 | Sanyo Electric Co Ltd | 対数増幅回路 |
| US6642784B2 (en) | 2001-05-22 | 2003-11-04 | Analog Devices, Inc. | Calibrated power amplifier module |
| US6774715B2 (en) * | 2001-06-29 | 2004-08-10 | Xanoptix Inc. | BiCMOS AC filter circuit |
| US7831151B2 (en) * | 2001-06-29 | 2010-11-09 | John Trezza | Redundant optical device array |
| WO2003052925A1 (en) * | 2001-06-29 | 2003-06-26 | Xanoptix, Inc. | Bicmos ac filter circuit |
| CA2386851A1 (en) | 2001-07-10 | 2003-01-10 | Robert J. Davies | Logarithmic amplifier |
| US6507233B1 (en) | 2001-08-02 | 2003-01-14 | Texas Instruments Incorporated | Method and circuit for compensating VT induced drift in monolithic logarithmic amplifier |
| US6828859B2 (en) * | 2001-08-17 | 2004-12-07 | Silicon Laboratories, Inc. | Method and apparatus for protecting devices in an RF power amplifier |
| US6969985B2 (en) | 2001-12-14 | 2005-11-29 | Analog Devices, Inc. | Active coupler |
| US7260367B2 (en) * | 2002-01-23 | 2007-08-21 | Analog Devices, Inc. | Edge power detector/controller |
| US6894565B1 (en) * | 2002-12-03 | 2005-05-17 | Silicon Laboratories, Inc. | Fast settling power amplifier regulator |
| US6897730B2 (en) * | 2003-03-04 | 2005-05-24 | Silicon Laboratories Inc. | Method and apparatus for controlling the output power of a power amplifier |
| US7546098B2 (en) * | 2003-05-29 | 2009-06-09 | Analog Devices, Inc. | Control system with selective open-loop operation |
| US7002395B2 (en) * | 2003-09-16 | 2006-02-21 | Yuantonix, Inc. | Demodulating logarithmic amplifier |
| US7180359B2 (en) * | 2004-12-22 | 2007-02-20 | Analog Devices, Inc. | Logarithmic temperature compensation for detectors |
| US7196569B1 (en) | 2005-02-14 | 2007-03-27 | Analog Devices, Inc. | Feedback compensation for logarithmic amplifiers |
| US8207777B1 (en) | 2005-11-21 | 2012-06-26 | Analog Devices, Inc. | Compensation with ratiometric attenuation |
| US8164377B1 (en) | 2005-11-21 | 2012-04-24 | Analog Devices, Inc. | Signal dependent compensation with matched detectors |
| US7268609B2 (en) * | 2006-01-20 | 2007-09-11 | National Semiconductor Corporation | Logarithmic detector or logarithmic amplifier having chopper stabilized logarithmic intercept |
| US8102201B2 (en) * | 2006-09-25 | 2012-01-24 | Analog Devices, Inc. | Reference circuit and method for providing a reference |
| CN101688889B (zh) * | 2007-05-14 | 2012-08-15 | 希泰特微波公司 | 带波峰因数测量的rf检测器 |
| US8958575B2 (en) * | 2007-06-29 | 2015-02-17 | Qualcomm Incorporated | Amplifier with configurable DC-coupled or AC-coupled output |
| JP2010016052A (ja) * | 2008-07-01 | 2010-01-21 | Rohm Co Ltd | 電流供給回路および電圧比較回路 |
| EP2504712B1 (en) * | 2009-11-23 | 2021-03-24 | Hittite Microwave LLC | Logarithmic mean-square power detector |
| US8461923B2 (en) * | 2009-11-23 | 2013-06-11 | Hittite Microwave Norway As | Logarithmic mean-square power detector with servo control loop |
| US9625498B2 (en) | 2010-09-17 | 2017-04-18 | Hittite Microwave Llc | RMS and envelope detector |
| US20140117974A1 (en) * | 2012-10-30 | 2014-05-01 | Keystone Semiconductor Corp. | Rssi circuit with low voltage and wide detectable power range |
| US8970301B2 (en) * | 2013-05-20 | 2015-03-03 | Analog Devices, Inc. | Method for low power low noise input bias current compensation |
| US9298952B2 (en) | 2013-11-18 | 2016-03-29 | King Fahd University Of Petroleum And Minerals | CMOS logarithmic current generator and method for generating a logarithmic current |
| US9287831B2 (en) | 2013-12-23 | 2016-03-15 | Analog Devices Global | Temperature stabilized circuitry |
| WO2016065633A1 (zh) * | 2014-10-31 | 2016-05-06 | 华为技术有限公司 | 一种曲线拟合电路、模拟预失真器和射频信号发射机 |
| US11320320B2 (en) * | 2018-07-25 | 2022-05-03 | Texas Instruments Incorporated | Temperature sensor circuit for relative thermal sensing |
| US11385267B2 (en) * | 2019-02-14 | 2022-07-12 | Psemi Corporation | Power detector with wide dynamic range |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1208771B (de) | 1964-07-16 | 1966-01-13 | Telefunken Patent | Logarithmischer Wechselstromverstaerker |
| US3435353A (en) * | 1966-02-04 | 1969-03-25 | Hewlett Packard Co | Amplifier-detector having wide dynamic range |
| US3584232A (en) * | 1969-01-21 | 1971-06-08 | Bell Telephone Labor Inc | Precision logarithmic converter |
| US3605027A (en) * | 1969-02-19 | 1971-09-14 | Us Navy | Amplifier |
| US3668535A (en) * | 1970-01-15 | 1972-06-06 | Varian Associates | Logarithmic rf amplifier employing successive detection |
| DE2545535C3 (de) | 1975-10-10 | 1979-02-22 | Rohde & Schwarz, 8000 Muenchen | Schaltung zum Erzeugen einer dem Logarithmus einer Eingangswechselspannung entsprechenden Ausgangsgleichspannung |
| US4333023A (en) * | 1980-06-16 | 1982-06-01 | Tektronix, Inc. | Temperature-stabilized logarithmic converter |
| US4565935A (en) * | 1982-07-22 | 1986-01-21 | Allied Corporation | Logarithmic converter circuit arrangements |
| US4604532A (en) * | 1983-01-03 | 1986-08-05 | Analog Devices, Incorporated | Temperature compensated logarithmic circuit |
| JPS61208305A (ja) * | 1985-03-12 | 1986-09-16 | Nec Corp | 対数変換回路 |
| JPS61224607A (ja) * | 1985-03-29 | 1986-10-06 | Toshiba Corp | 自動利得制御用検波回路 |
| US4794342A (en) * | 1986-06-04 | 1988-12-27 | Nec Corporation | Intermediate frequency amplification circuit capable of detecting a field strength with low electric power |
-
1989
- 1989-03-27 US US07/328,966 patent/US4990803A/en not_active Expired - Lifetime
-
1990
- 1990-03-21 JP JP50570290A patent/JP3251939B2/ja not_active Expired - Lifetime
- 1990-03-21 EP EP90905994A patent/EP0465576B1/en not_active Expired - Lifetime
- 1990-03-21 WO PCT/US1990/001530 patent/WO1990011645A1/en not_active Ceased
- 1990-03-21 DE DE90905994T patent/DE69003385T2/de not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0730353A (ja) * | 1993-07-14 | 1995-01-31 | Nec Corp | 対数増幅回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0465576B1 (en) | 1993-09-15 |
| WO1990011645A1 (en) | 1990-10-04 |
| EP0465576A1 (en) | 1992-01-15 |
| DE69003385D1 (de) | 1993-10-21 |
| JP3251939B2 (ja) | 2002-01-28 |
| DE69003385T2 (de) | 1994-05-05 |
| US4990803A (en) | 1991-02-05 |
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