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 circuitoInfo
- 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
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)
- Networks Using Active Elements (AREA)
- Amplifiers (AREA)
- Analogue/Digital Conversion (AREA)
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 (19)
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 |
US9419573B2 (en) * | 2014-06-27 | 2016-08-16 | Nxp, B.V. | Variable gain transimpedance amplifier |
US9467094B2 (en) | 2014-06-27 | 2016-10-11 | Qualcomm Incorporated | Phase-dependent operational amplifiers employing phase-based frequency compensation, and related systems and methods |
US9484877B2 (en) * | 2014-08-25 | 2016-11-01 | Mediatek Inc. | Resonating device with single operational amplifier |
US9312879B2 (en) | 2014-08-25 | 2016-04-12 | Mediatek Inc. | Signal modulating device capable of reducing peaking in signal transfer function |
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 |
WO2017048835A1 (en) | 2015-09-14 | 2017-03-23 | Synaptics Incorporated | Continuous time anti-alias filter for capacitive touch sensing |
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 |
Family Cites Families (8)
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 |
WO2008065762A1 (fr) * | 2006-11-30 | 2008-06-05 | Panasonic Corporation | Amplificateur opérationnel |
-
2008
- 2008-12-15 IT ITRM2008A000664A patent/IT1392309B1/it active
-
2009
- 2009-12-14 EP EP09179092A patent/EP2197109A1/en not_active Withdrawn
- 2009-12-14 US US12/637,091 patent/US8044718B2/en active Active - Reinstated
Also Published As
Publication number | Publication date |
---|---|
US20100156535A1 (en) | 2010-06-24 |
EP2197109A1 (en) | 2010-06-16 |
US8044718B2 (en) | 2011-10-25 |
ITRM20080664A1 (it) | 2010-06-16 |
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