IT1250825B - Amplificatore,particolarmente amplificatore integrato. - Google Patents
Amplificatore,particolarmente amplificatore integrato.Info
- Publication number
- IT1250825B IT1250825B ITTO910599A ITTO910599A IT1250825B IT 1250825 B IT1250825 B IT 1250825B IT TO910599 A ITTO910599 A IT TO910599A IT TO910599 A ITTO910599 A IT TO910599A IT 1250825 B IT1250825 B IT 1250825B
- Authority
- IT
- Italy
- Prior art keywords
- current
- amplifier
- input
- transistors
- resistor
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/261—Amplifier which being suitable for instrumentation applications
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
Al fine di ottenere, utilizzando un'unica tensione di alimentazione (Vcc), un'elevata dinamica di ingresso, nonché alti valori di CMRR e PSRR e di impedenza agli ingressi, l'amplificatore comprende uno stadio di ingresso con due transistori (Q1, Q2) polarizzati a corrente costante (IP3, IP4), preferibilmente con un'intensità di corrente di polarizzazione inferiore ad un microampere, i cui collettori sono tenuti fissi a tensioni di riferimento (VR1, VR2). Il segnale di ingresso (VIN), applicato fra gli emettitori (IN(-), IN(+)) di detti transistori (Q1, Q2), viene trasferito ai capi di un primo resistore (R1) alimentato in corrente (IR1) a partire da un circuito (M7, Q5, R3; M10, Q6, R4; M9, Q7, R5) che ribalta la suddetta corrente (IR1) su un secondo resistore (R6) ai cui capi viene prelevato il segnale di uscita (VOUT).Applicazione preferenziale per la realizzazione di interfacce per sonde lambda applicate su marmitte catalitiche di autoveicoli.(Figura 3).
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO910599A IT1250825B (it) | 1991-07-29 | 1991-07-29 | Amplificatore,particolarmente amplificatore integrato. |
EP92112639A EP0525656B1 (en) | 1991-07-29 | 1992-07-23 | An amplifier, particularly an integrated amplifier |
ES92112639T ES2120974T3 (es) | 1991-07-29 | 1992-07-23 | Un amplificador, particularmente un amplificador integrado. |
DE69226831T DE69226831T2 (de) | 1991-07-29 | 1992-07-23 | Verstärker, insbesondere ein integrierter Verstärker |
US07/919,891 US5276405A (en) | 1991-07-29 | 1992-07-27 | Integrated instrumentation amplifier for below-ground inputs |
JP4201106A JPH05206757A (ja) | 1991-07-29 | 1992-07-28 | 集積増幅器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO910599A IT1250825B (it) | 1991-07-29 | 1991-07-29 | Amplificatore,particolarmente amplificatore integrato. |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO910599A0 ITTO910599A0 (it) | 1991-07-29 |
ITTO910599A1 ITTO910599A1 (it) | 1993-01-29 |
IT1250825B true IT1250825B (it) | 1995-04-21 |
Family
ID=11409526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITTO910599A IT1250825B (it) | 1991-07-29 | 1991-07-29 | Amplificatore,particolarmente amplificatore integrato. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5276405A (it) |
EP (1) | EP0525656B1 (it) |
JP (1) | JPH05206757A (it) |
DE (1) | DE69226831T2 (it) |
ES (1) | ES2120974T3 (it) |
IT (1) | IT1250825B (it) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4333359C2 (de) * | 1993-06-26 | 2002-08-14 | Bosch Gmbh Robert | Monolithisch integrierte Leistungsendstufe |
JPH0878971A (ja) * | 1994-06-30 | 1996-03-22 | Fujitsu Ltd | 出力回路および演算増幅器 |
DE19534873A1 (de) * | 1995-09-20 | 1997-03-27 | Philips Patentverwaltung | Schaltungsanordnung mit einem Differenzverstärker |
US5760648A (en) * | 1996-08-12 | 1998-06-02 | Motorola, Inc. | Electronic circuit for converting a differential signal into a single-ended signal with common mode voltage rejection by resistor network |
US5916634A (en) * | 1996-10-01 | 1999-06-29 | Sandia Corporation | Chemical vapor deposition of W-Si-N and W-B-N |
JP3838731B2 (ja) * | 1997-03-14 | 2006-10-25 | ローム株式会社 | 増幅器 |
FR2797537B1 (fr) * | 1999-08-09 | 2001-10-19 | St Microelectronics Sa | Amplificateur operationnel a centrage de tension de decalage, et compatible basse-tension |
DE10016445C2 (de) | 2000-03-29 | 2002-03-28 | Infineon Technologies Ag | Elektronische Ausgangsstufe |
US6768318B2 (en) | 2001-02-22 | 2004-07-27 | Texas Instruments Incorporated | Signal conditioning circuit for resistive sensors |
US6538503B2 (en) | 2001-02-22 | 2003-03-25 | Texas Instruments Incorporated | Instrumentation amplifier and method for obtaining high common mode rejection |
US6642795B2 (en) * | 2002-02-11 | 2003-11-04 | Texas Instruments Incorporated | Fast recovery time precision amplifier |
US6731165B1 (en) | 2003-01-06 | 2004-05-04 | Daniel J. Marz | Electronic amplifier |
JP4573602B2 (ja) * | 2004-08-26 | 2010-11-04 | 三洋電機株式会社 | 増幅装置 |
US7212042B1 (en) | 2004-08-27 | 2007-05-01 | Zilog, Inc. | Below-ground sensor interface amplifier |
DE102004059960A1 (de) * | 2004-12-13 | 2006-06-22 | Bourns, Inc., Riverside | Schaltungsanordnung zur Messung eines elektrischen Stromes |
US7196581B2 (en) * | 2005-05-20 | 2007-03-27 | Texas Instruments Incorporated | Amplifier switching control circuit and method for current shunt instrumentation amplifier having extended position and negative input common mode range |
US7528658B2 (en) * | 2007-02-16 | 2009-05-05 | Toshiba America Electronic Components, Inc. | Threshold voltage compensation for a two stage amplifier |
US7554402B2 (en) * | 2007-11-01 | 2009-06-30 | Analog Devices, Inc. | High CMR amplifier topology |
TWI405403B (zh) * | 2010-07-14 | 2013-08-11 | Anpec Electronics Corp | 電流控制電路、ab類運算放大器系統及電流控制方法 |
US9356587B2 (en) | 2014-02-19 | 2016-05-31 | Stmicroelectronics S.R.L. | High voltage comparison circuit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4232271A (en) * | 1979-02-05 | 1980-11-04 | National Semiconductor Corporation | Instrumentation amplifier with extended common mode range |
US4378529A (en) * | 1979-04-09 | 1983-03-29 | National Semiconductor Corporation | Differential amplifier input stage capable of operating in excess of power supply voltage |
EP0045841B1 (en) * | 1980-06-24 | 1985-11-27 | Nec Corporation | Linear voltage-current converter |
US4521739A (en) * | 1983-05-26 | 1985-06-04 | At&T Bell Laboratories | Low offset voltage transistor bridge transconductance amplifier |
-
1991
- 1991-07-29 IT ITTO910599A patent/IT1250825B/it active IP Right Grant
-
1992
- 1992-07-23 EP EP92112639A patent/EP0525656B1/en not_active Expired - Lifetime
- 1992-07-23 ES ES92112639T patent/ES2120974T3/es not_active Expired - Lifetime
- 1992-07-23 DE DE69226831T patent/DE69226831T2/de not_active Expired - Fee Related
- 1992-07-27 US US07/919,891 patent/US5276405A/en not_active Expired - Lifetime
- 1992-07-28 JP JP4201106A patent/JPH05206757A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0525656B1 (en) | 1998-09-02 |
ES2120974T3 (es) | 1998-11-16 |
ITTO910599A1 (it) | 1993-01-29 |
US5276405A (en) | 1994-01-04 |
EP0525656A1 (en) | 1993-02-03 |
JPH05206757A (ja) | 1993-08-13 |
DE69226831D1 (de) | 1998-10-08 |
ITTO910599A0 (it) | 1991-07-29 |
DE69226831T2 (de) | 1999-01-14 |
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Legal Events
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