IT1392309B1 - Circuito integrato di amplificazione a guadagno programmabile e sistema comprendente detto circuito - Google Patents

Circuito integrato di amplificazione a guadagno programmabile e sistema comprendente detto circuito

Info

Publication number
IT1392309B1
IT1392309B1 ITRM2008A000664A ITRM20080664A IT1392309B1 IT 1392309 B1 IT1392309 B1 IT 1392309B1 IT RM2008A000664 A ITRM2008A000664 A IT RM2008A000664A IT RM20080664 A ITRM20080664 A IT RM20080664A IT 1392309 B1 IT1392309 B1 IT 1392309B1
Authority
IT
Italy
Prior art keywords
circuit
system including
integrated
building
integrated circuit
Prior art date
Application number
ITRM2008A000664A
Other languages
English (en)
Inventor
Germano Nicollini
Angelo Nagari
Original Assignee
St Microelectronics Srl
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 St Microelectronics Srl filed Critical St Microelectronics Srl
Priority to ITRM2008A000664A priority Critical patent/IT1392309B1/it
Priority to US12/637,091 priority patent/US8044718B2/en
Priority to EP09179092A priority patent/EP2197109A1/en
Publication of ITRM20080664A1 publication Critical patent/ITRM20080664A1/it
Application granted granted Critical
Publication of IT1392309B1 publication Critical patent/IT1392309B1/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • 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
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1291—Current or voltage controlled filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45526—Indexing scheme relating to differential amplifiers the FBC comprising a resistor-capacitor combination and being coupled between the LC and the IC
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45594—Indexing scheme relating to differential amplifiers the IC comprising one or more resistors, which are not biasing resistor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
  • Analogue/Digital Conversion (AREA)
ITRM2008A000664A 2008-12-15 2008-12-15 Circuito integrato di amplificazione a guadagno programmabile e sistema comprendente detto circuito IT1392309B1 (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITRM2008A000664A IT1392309B1 (it) 2008-12-15 2008-12-15 Circuito integrato di amplificazione a guadagno programmabile e sistema comprendente detto circuito
US12/637,091 US8044718B2 (en) 2008-12-15 2009-12-14 Integrated programmable gain amplifier circuit and system including the circuit
EP09179092A EP2197109A1 (en) 2008-12-15 2009-12-14 Integrated programmable gain amplifier circuit and system including said circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITRM2008A000664A IT1392309B1 (it) 2008-12-15 2008-12-15 Circuito integrato di amplificazione a guadagno programmabile e sistema comprendente detto circuito

Publications (2)

Publication Number Publication Date
ITRM20080664A1 ITRM20080664A1 (it) 2010-06-16
IT1392309B1 true IT1392309B1 (it) 2012-02-24

Family

ID=41357763

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM2008A000664A IT1392309B1 (it) 2008-12-15 2008-12-15 Circuito integrato di amplificazione a guadagno programmabile e sistema comprendente detto circuito

Country Status (3)

Country Link
US (1) US8044718B2 (it)
EP (1) EP2197109A1 (it)
IT (1) IT1392309B1 (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9602079B2 (en) * 2009-06-23 2017-03-21 Qualcomm Incorporated Tunable adaptive filter with variable gain trans-conductance stage
DE102010012688B4 (de) * 2010-03-24 2014-05-15 Dspace Digital Signal Processing And Control Engineering Gmbh Schaltanordnung mit Temperaturkompensation
EP2552018A1 (en) * 2011-07-26 2013-01-30 ST-Ericsson SA Microphone preamplifier circuit
KR101881912B1 (ko) * 2013-01-24 2018-07-26 삼성전자주식회사 신호 처리 장치 및 신호 처리 방법
CN103219962B (zh) * 2013-04-15 2016-03-30 鞍钢集团矿业公司 可编程增益隔离放大电路及其实现方法
US8970293B1 (en) 2013-10-29 2015-03-03 Motorola Solutions, Inc. Active RC filter having gain-setting attenuator
US9467094B2 (en) 2014-06-27 2016-10-11 Qualcomm Incorporated Phase-dependent operational amplifiers employing phase-based frequency compensation, and related systems and methods
US9419573B2 (en) * 2014-06-27 2016-08-16 Nxp, B.V. Variable gain transimpedance amplifier
US9312879B2 (en) 2014-08-25 2016-04-12 Mediatek Inc. Signal modulating device capable of reducing peaking in signal transfer function
US9484877B2 (en) * 2014-08-25 2016-11-01 Mediatek Inc. Resonating device with single operational amplifier
JP6466678B2 (ja) * 2014-10-01 2019-02-06 ルネサスエレクトロニクス株式会社 半導体集積回路、可変利得増幅器、及び、センサシステム
CN108027678B (zh) 2015-09-14 2021-09-03 辛纳普蒂克斯公司 用于电容性的触摸感测的连续时间抗混叠滤波器
US10199995B2 (en) * 2016-03-30 2019-02-05 Mediatek Inc. Programmable amplifier circuit capable of providing large or larger resistance for feedback path of its amplifier
CN106849903B (zh) * 2016-12-28 2020-12-22 宁波斯凯勒智能科技有限公司 一种频率滤波电路
CN107317563B (zh) * 2017-08-21 2024-02-13 四川西南交大铁路发展股份有限公司 一种差分选择滤波电路及方法
US10270407B2 (en) * 2017-08-31 2019-04-23 Core Chip Technology (Nanjing) Co., Ltd. Programmable gain amplifier
CN107565921B (zh) * 2017-10-11 2024-04-05 绍兴职业技术学院 一种可对比的自动循环可编程放大电路
JP7238269B2 (ja) * 2018-05-11 2023-03-14 オムロン株式会社 信号処理回路
CN116232281B (zh) * 2023-03-13 2023-11-14 青岛艾诺仪器有限公司 一种自定义滤波器的控制方法
WO2025251087A1 (en) * 2024-05-31 2025-12-04 The Regents Of The University Of California Apparatus and method for low-power electrogram devices for human machine interfaces

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5392456A (en) * 1989-10-06 1995-02-21 Hitachi, Ltd. Method of controlling filter time constant and filter circuit having the time constant control function based on the method
US6407658B2 (en) * 1999-05-14 2002-06-18 Koninklijke Philips Electronics N.V. Method and arrangement for filtering with common mode feedback for low power consumption
US7068108B2 (en) * 2004-01-09 2006-06-27 Texas Instruments Incorporated Amplifier apparatus and method
US6965275B2 (en) * 2004-02-13 2005-11-15 Infineon Technologies Ag Method and apparatus for tuning a filter
US7138873B2 (en) * 2004-11-17 2006-11-21 Chandra Gaurav Filter circuit providing low distortion and enhanced flexibility to obtain variable gain amplification
DE102005055426B4 (de) * 2005-11-21 2011-12-29 Xignal Technologies Ag Schaltungsanordnung mit einem rückgekoppelten, voll-differentiellen Operationsverstärker
US7425863B2 (en) * 2005-12-13 2008-09-16 Broadcom Corporation Tuneable filters using operational amplifiers
CN101443997A (zh) * 2006-11-30 2009-05-27 松下电器产业株式会社 运算放大器

Also Published As

Publication number Publication date
EP2197109A1 (en) 2010-06-16
ITRM20080664A1 (it) 2010-06-16
US20100156535A1 (en) 2010-06-24
US8044718B2 (en) 2011-10-25

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