IT1227615B - Filtro completamente differenziale a condensatori commutati utilizzante amplificatori operazionali cmos senza retroazione di modo comune - Google Patents

Filtro completamente differenziale a condensatori commutati utilizzante amplificatori operazionali cmos senza retroazione di modo comune

Info

Publication number
IT1227615B
IT1227615B IT8823059A IT2305988A IT1227615B IT 1227615 B IT1227615 B IT 1227615B IT 8823059 A IT8823059 A IT 8823059A IT 2305988 A IT2305988 A IT 2305988A IT 1227615 B IT1227615 B IT 1227615B
Authority
IT
Italy
Prior art keywords
cmos
common mode
operational amplifiers
mode feedback
switched capacitors
Prior art date
Application number
IT8823059A
Other languages
English (en)
Other versions
IT8823059A0 (it
Inventor
Germano Nicollini
Original Assignee
Sgs Thomson Microelectronics
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 Sgs Thomson Microelectronics filed Critical Sgs Thomson Microelectronics
Priority to IT8823059A priority Critical patent/IT1227615B/it
Publication of IT8823059A0 publication Critical patent/IT8823059A0/it
Priority to EP89203109A priority patent/EP0375017B1/en
Priority to DE68929535T priority patent/DE68929535D1/de
Priority to JP1327478A priority patent/JPH02219314A/ja
Priority to US07/453,921 priority patent/US5084683A/en
Application granted granted Critical
Publication of IT1227615B publication Critical patent/IT1227615B/it
Priority to US08/189,576 priority patent/USRE35379E/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/005—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements using switched capacitors, e.g. dynamic amplifiers; using switched capacitors as resistors in differential amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H03H19/004—Switched capacitor networks
IT8823059A 1988-12-22 1988-12-22 Filtro completamente differenziale a condensatori commutati utilizzante amplificatori operazionali cmos senza retroazione di modo comune IT1227615B (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT8823059A IT1227615B (it) 1988-12-22 1988-12-22 Filtro completamente differenziale a condensatori commutati utilizzante amplificatori operazionali cmos senza retroazione di modo comune
EP89203109A EP0375017B1 (en) 1988-12-22 1989-12-07 Fully differential filter with switched condensers using CMOS operational amplifiers with no common-mode feedback
DE68929535T DE68929535D1 (de) 1988-12-22 1989-12-07 Volldifferentiales Filter mit geschalteten Kondensatoren unter Verwendung von CMOS-Operationsverstärkern ohne Gleichtaktrückkopplung
JP1327478A JPH02219314A (ja) 1988-12-22 1989-12-19 スイッチドキャパシタを備えた全差動フィルタ
US07/453,921 US5084683A (en) 1988-12-22 1989-12-19 Completely differential filter with switched condensers using cmos operational amplifiers with no common-mode feedback
US08/189,576 USRE35379E (en) 1988-12-22 1994-01-28 Completely differential filter with switched condensers using CMOS operational amplifiers with no common-mode feedback

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8823059A IT1227615B (it) 1988-12-22 1988-12-22 Filtro completamente differenziale a condensatori commutati utilizzante amplificatori operazionali cmos senza retroazione di modo comune

Publications (2)

Publication Number Publication Date
IT8823059A0 IT8823059A0 (it) 1988-12-22
IT1227615B true IT1227615B (it) 1991-04-22

Family

ID=11203348

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8823059A IT1227615B (it) 1988-12-22 1988-12-22 Filtro completamente differenziale a condensatori commutati utilizzante amplificatori operazionali cmos senza retroazione di modo comune

Country Status (5)

Country Link
US (2) US5084683A (it)
EP (1) EP0375017B1 (it)
JP (1) JPH02219314A (it)
DE (1) DE68929535D1 (it)
IT (1) IT1227615B (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07336169A (ja) * 1994-06-03 1995-12-22 Youzan:Kk 増幅回路
SE9903532D0 (sv) * 1999-09-28 1999-09-28 Jiren Yuan Versatile charge sampling circuits
US7071778B2 (en) 2003-04-28 2006-07-04 Sony Corporation High-speed low-power dynamic current biased operational amplifier
US7339418B2 (en) * 2004-08-17 2008-03-04 National Instruments Corporation Differential filter topology with dielectric absorption cancellation for a data acquisition device
JP2006121480A (ja) * 2004-10-22 2006-05-11 Sony Corp サンプルホールド回路及びそれを用いたパイプラインａｄ変換器
JP2006121307A (ja) * 2004-10-20 2006-05-11 Sony Corp サンプルホールド回路又はそれを用いたａｄ変換器
US8195096B2 (en) * 2006-07-13 2012-06-05 Mediatek Inc. Apparatus and method for enhancing DC offset correction speed of a radio device
EP2133993B1 (en) * 2008-06-13 2011-03-02 Zoran Corporation Gain circuit
US8009071B2 (en) * 2009-12-11 2011-08-30 Zoran Corporation Gain circuit
EP2466745A1 (en) 2010-12-17 2012-06-20 Dialog Semiconductor GmbH Amplifier common-mode control methods
EP2552018A1 (en) 2011-07-26 2013-01-30 ST-Ericsson SA Microphone preamplifier circuit
US9263993B2 (en) 2014-04-22 2016-02-16 Mediatek Inc. Low pass filter with common-mode noise reduction
US9231542B1 (en) 2014-11-24 2016-01-05 Dialog Semiconductor (Uk) Limited Amplifier common-mode control method
ITUB20159233A1 (it) * 2015-12-23 2017-06-23 St Microelectronics Srl Circuito elettronico di amplificazione con ridotto tempo di start-up per un segnale includente componenti in quadratura
CN115065234B (zh) * 2022-08-15 2022-11-18 英彼森半导体(珠海)有限公司 一种工作于多种电源电压的模拟滤波器架构及滤波方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574250A (en) * 1981-10-13 1986-03-04 Intel Corporation Switched capacitor filter utilizing a differential input and output circuit and method
US4533877A (en) * 1983-12-29 1985-08-06 At&T Bell Laboratories Telecommunication operational amplifier
IT1213243B (it) * 1984-11-12 1989-12-14 Ates Componenti Elettron Circuito buffer a struttura differenziale per la misurazione di cariche capacitive.
IT1215374B (it) * 1987-03-05 1990-02-08 Sgs Microelettronica Spa Filtro elettronico integrato attivo avente bassissima sensitivita' alle ariazioni dei componenti.
IT1203893B (it) * 1987-04-14 1989-02-23 Sgs Microelettronica Spa Circuito di amplificazione ad elevata precisione con piccolo ingombro e basso consumo di potenza per circuiti integrati.
IT1220188B (it) * 1987-12-11 1990-06-06 Sgs Microelettronica Spa Rilevazione e controllo di modo comune in catena di amplificicatori bilanciati

Also Published As

Publication number Publication date
EP0375017A2 (en) 1990-06-27
IT8823059A0 (it) 1988-12-22
EP0375017B1 (en) 2005-06-01
US5084683A (en) 1992-01-28
EP0375017A3 (en) 1990-09-26
DE68929535D1 (de) 2005-07-07
USRE35379E (en) 1996-11-19
JPH02219314A (ja) 1990-08-31

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961227