BR0007478A - Comutador de amostragem linear - Google Patents

Comutador de amostragem linear

Info

Publication number
BR0007478A
BR0007478A BR0007478-0A BR0007478A BR0007478A BR 0007478 A BR0007478 A BR 0007478A BR 0007478 A BR0007478 A BR 0007478A BR 0007478 A BR0007478 A BR 0007478A
Authority
BR
Brazil
Prior art keywords
sampling
linear
sampling capacitors
operational amplifier
switch
Prior art date
Application number
BR0007478-0A
Other languages
English (en)
Inventor
Seyfollah S Bazarjani
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0007478A publication Critical patent/BR0007478A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H03M1/54—Input signal sampled and held with linear return to datum
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C27/00—Electric analogue stores, e.g. for storing instantaneous values
    • G11C27/02—Sample-and-hold arrangements
    • G11C27/024—Sample-and-hold arrangements using a capacitive memory element
    • G11C27/026—Sample-and-hold arrangements using a capacitive memory element associated with an amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electronic Switches (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Amplifiers (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

Patente de Invenção: "COMUTADOR DE AMOSTRAGEM LINEAR". Um comutador linear é incorporado em um comutador ativo de amostragem e retenção (hold). O circuito ativo de amostragem e retenção é simétrico e está configurado para aceitar uma alimentação balanceada. Dois comutadores lineares acoplam um sinal positivo de alimentação da alimentação balanceada a dois diferentes capacitores de .amostragem. Após os capacitores de amostragem estarem carregados, outro conjunto de comutadores configura os capacitores de amostragem de tal forma que um dos capacitores de amostragem fica no feedback de um amplificador operacional e o outro fica conectado da alimentação do amplificador operacional para a terra. Em tal configuração, o circuito possui um ganho de dois e a saída do amplificador operacional é duas vezes a voltagem amostrada pelos capacitores de amostragem.
BR0007478-0A 1999-01-12 2000-01-11 Comutador de amostragem linear BR0007478A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/228,826 US6137321A (en) 1999-01-12 1999-01-12 Linear sampling switch
PCT/US2000/000665 WO2000042616A1 (en) 1999-01-12 2000-01-11 Linear sampling switch

Publications (1)

Publication Number Publication Date
BR0007478A true BR0007478A (pt) 2002-01-08

Family

ID=22858699

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0007478-0A BR0007478A (pt) 1999-01-12 2000-01-11 Comutador de amostragem linear

Country Status (13)

Country Link
US (1) US6137321A (pt)
EP (1) EP1141965A1 (pt)
JP (1) JP2002535861A (pt)
KR (1) KR100709824B1 (pt)
CN (1) CN1157738C (pt)
AU (1) AU764800B2 (pt)
BR (1) BR0007478A (pt)
CA (1) CA2355871C (pt)
HK (1) HK1042771A1 (pt)
ID (1) ID30079A (pt)
IL (1) IL143914A0 (pt)
RU (1) RU2001122589A (pt)
WO (1) WO2000042616A1 (pt)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6542722B1 (en) * 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US7110435B1 (en) * 1999-03-15 2006-09-19 Parkervision, Inc. Spread spectrum applications of universal frequency translation
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US6636084B2 (en) * 1999-12-22 2003-10-21 Texas Instruments Incorporated Sample and hold circuit
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US6720799B2 (en) * 2001-01-11 2004-04-13 Broadcom Corporation Replica network for linearizing switched capacitor circuits
US6515612B1 (en) * 2001-10-23 2003-02-04 Agere Systems, Inc. Method and system to reduce signal-dependent charge drawn from reference voltage in switched capacitor circuits
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
EP1540565B1 (en) * 2002-08-29 2012-01-18 Xilinx, Inc. Switched capacitor system, method, and use
US6992509B2 (en) * 2003-10-02 2006-01-31 Supertex, Inc. Switched-capacitor sample/hold having reduced amplifier slew-rate and settling time requirements
US7881137B2 (en) * 2008-10-23 2011-02-01 Qualcomm Incorporated Read assist for memory circuits with different precharge voltage levels for bit line pair
CN101770811B (zh) * 2009-12-29 2012-07-25 浙江大学 基于阈值取消功能的钟控浮栅mos管的采样保持电路
CN102624337B (zh) * 2012-03-29 2013-07-24 天津大学 对电容失配和采样信号共模不敏感的2倍开关电容放大器
US8854085B1 (en) * 2013-05-08 2014-10-07 Texas Instruments Incorporated Method and apparatus for cancellation of the second harmonic in a differential sampling circuit
CN104635675B (zh) * 2014-12-17 2017-02-22 扬州江新电子有限公司 精密声控传感器集成控制装置
US9558845B2 (en) 2015-03-25 2017-01-31 Qualcomm Incorporated Sampling network and clocking scheme for a switched-capacitor integrator
CN106230422A (zh) * 2015-06-02 2016-12-14 松下知识产权经营株式会社 信号生成电路

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2641924B1 (fr) * 1988-12-28 1991-05-03 Sgs Thomson Microelectronics Generateur de forme d'onde de signal analogique
US5532624A (en) * 1995-01-31 1996-07-02 At&T Corp. High-speed and accurate sample and hold circuits
GB2301720B (en) * 1995-06-01 2000-05-24 Motorola Inc A MOS switching circuit
US5689201A (en) * 1995-08-08 1997-11-18 Oregon State University Track-and-hold circuit utilizing a negative of the input signal for tracking
JP3216490B2 (ja) * 1995-09-07 2001-10-09 ヤマハ株式会社 スイッチドキャパシタフィルタ
JPH09134970A (ja) * 1995-09-08 1997-05-20 Sharp Corp サンプリング回路および画像表示装置
EP0799527B1 (en) * 1995-10-20 2002-01-16 Philips Electronics N.V. Differential switched capacitor filtering
US5736895A (en) * 1996-01-16 1998-04-07 Industrial Technology Research Institute Biquadratic switched-capacitor filter using single operational amplifier
US5894284A (en) * 1996-12-02 1999-04-13 Motorola, Inc. Common-mode output sensing circuit
US5963156A (en) * 1997-10-22 1999-10-05 National Semiconductor Corporation Sample and hold circuit and method with common mode differential signal feedback for converting single-ended signals to differential signals
US6031399A (en) * 1998-02-13 2000-02-29 National Semiconductor Corporation Selectively configurable analog signal sampler

Also Published As

Publication number Publication date
CA2355871C (en) 2009-05-26
CN1157738C (zh) 2004-07-14
CN1337046A (zh) 2002-02-20
RU2001122589A (ru) 2003-06-27
IL143914A0 (en) 2002-04-21
JP2002535861A (ja) 2002-10-22
US6137321A (en) 2000-10-24
KR20010101449A (ko) 2001-11-14
EP1141965A1 (en) 2001-10-10
CA2355871A1 (en) 2000-07-20
KR100709824B1 (ko) 2007-04-23
ID30079A (id) 2001-11-01
AU2502100A (en) 2000-08-01
AU764800B2 (en) 2003-08-28
WO2000042616A1 (en) 2000-07-20
HK1042771A1 (en) 2002-08-23

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]