DE69322899T2 - Biomedizinische Verstärkerschaltung - Google Patents

Biomedizinische Verstärkerschaltung

Info

Publication number
DE69322899T2
DE69322899T2 DE69322899T DE69322899T DE69322899T2 DE 69322899 T2 DE69322899 T2 DE 69322899T2 DE 69322899 T DE69322899 T DE 69322899T DE 69322899 T DE69322899 T DE 69322899T DE 69322899 T2 DE69322899 T2 DE 69322899T2
Authority
DE
Germany
Prior art keywords
amplifier circuit
biomedical
biomedical amplifier
circuit
amplifier
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69322899T
Other languages
English (en)
Other versions
DE69322899D1 (de
Inventor
Richard A Baumgartner
Charles E Moore
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agilent Technologies Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of DE69322899D1 publication Critical patent/DE69322899D1/de
Application granted granted Critical
Publication of DE69322899T2 publication Critical patent/DE69322899T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/30—Input circuits therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • 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
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45183—Long tailed pairs
    • H03F3/45188—Non-folded cascode stages
    • 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
    • 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
    • H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
    • H03F3/45636—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by using feedback means
    • H03F3/45641—Measuring at the loading circuit of the differential amplifier
    • H03F3/4565—Controlling the common source circuit of the differential amplifier
    • 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
    • H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
    • H03F3/45636—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by using feedback means
    • H03F3/45641—Measuring at the loading circuit of the differential amplifier
    • H03F3/45659—Controlling the loading circuit of the differential amplifier
    • 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
    • H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
    • H03F3/45744—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by offset reduction
    • H03F3/45775—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by offset reduction by using cross switches
    • 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
    • H03F3/45928—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit
    • H03F3/45932—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by using feedback means
    • H03F3/45937—Measuring at the loading circuit of the differential amplifier
    • H03F3/45941—Controlling the input circuit of the differential amplifier
    • 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
    • H03F3/45928—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit
    • H03F3/45968—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction
    • H03F3/45973—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction by using a feedback circuit
    • 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
    • H03F3/45928—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit
    • H03F3/45968—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction
    • H03F3/45991—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction by using balancing means
    • H03F3/45995—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction by using balancing means using switching means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7242—Details of waveform analysis using integration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/261—Amplifier which being suitable for instrumentation applications
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/331—Sigma delta modulation being used in an amplifying circuit
    • 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
    • H03F2203/45644—Indexing scheme relating to differential amplifiers the LC comprising a cross coupling circuit, e.g. comprising two cross-coupled transistors
DE69322899T 1992-04-30 1993-03-31 Biomedizinische Verstärkerschaltung Expired - Fee Related DE69322899T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/876,612 US5206602A (en) 1992-04-30 1992-04-30 Biomedical amplifier circuit

Publications (2)

Publication Number Publication Date
DE69322899D1 DE69322899D1 (de) 1999-02-18
DE69322899T2 true DE69322899T2 (de) 1999-05-27

Family

ID=25368151

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69322899T Expired - Fee Related DE69322899T2 (de) 1992-04-30 1993-03-31 Biomedizinische Verstärkerschaltung

Country Status (4)

Country Link
US (1) US5206602A (de)
EP (1) EP0568197B1 (de)
JP (1) JPH06224659A (de)
DE (1) DE69322899T2 (de)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0571075B1 (de) * 1992-04-30 1999-07-21 Hewlett-Packard Company Analog-/Digitalwandler mit automatischer Offsetsbereichregelung
JP2656714B2 (ja) * 1993-06-15 1997-09-24 日本電気株式会社 全差動増幅器
US5392784A (en) * 1993-08-20 1995-02-28 Hewlett-Packard Company Virtual right leg drive and augmented right leg drive circuits for common mode voltage reduction in ECG and EEG measurements
US5592510A (en) * 1994-03-29 1997-01-07 Apple Computer, Inc. Common mode early voltage compensation subcircuit for current driver
US5598157A (en) * 1994-10-28 1997-01-28 Harris Corporation Sigma Delta analog to digital converter with three point calibration apparatus and method
NL1001231C2 (nl) * 1995-09-18 1997-03-20 Univ Delft Tech Chopperversterker met een geringe offset.
US5615687A (en) * 1995-12-06 1997-04-01 Hewlett-Packard Company Heart monitoring system and method with reduced signal acquisition range
EP1055284A1 (de) * 1998-11-12 2000-11-29 Koninklijke Philips Electronics N.V. Schaltung mit mitteln zur verminderung der offset-gleischspannung und des geräusches erzeugt in einem verstärker
US6133787A (en) * 1999-05-04 2000-10-17 Physio-Control Manufacturing Corporation Method and apparatus for controlling the common mode impedance misbalance of an isolated single-ended circuit
US6433711B1 (en) * 1999-12-14 2002-08-13 Texas Instruments Incorporated System and method for offset error compensation in comparators
US6363278B1 (en) * 2000-04-14 2002-03-26 Cardiac Pacemakers, Inc. Cardiac rhythm management system with staggered pulses for coordination therapy
US6566915B1 (en) * 2000-08-10 2003-05-20 Intel Corporation Differential envelope detector
DE10042170A1 (de) * 2000-08-15 2002-03-07 Infineon Technologies Ag Differentieller, komplementärer Verstärker
US6750703B1 (en) * 2002-12-24 2004-06-15 Silicon Integrated Systems Corp. DC offset canceling circuit applied in a variable gain amplifier
JP2006279377A (ja) 2005-03-29 2006-10-12 Handotai Rikougaku Kenkyu Center:Kk チョッパ増幅回路
US7595697B2 (en) * 2005-04-15 2009-09-29 Ivy Biomedical Systems, Inc. Wireless transmitter
US9398891B2 (en) * 2005-10-20 2016-07-26 Tiba Medical, Inc. Multiple communication interface medical examination apparatus, system, and/or method
US8092396B2 (en) * 2005-10-20 2012-01-10 Merat Bagha Electronic auscultation device
US8200320B2 (en) * 2006-03-03 2012-06-12 PhysioWave, Inc. Integrated physiologic monitoring systems and methods
US20070208232A1 (en) * 2006-03-03 2007-09-06 Physiowave Inc. Physiologic monitoring initialization systems and methods
US7668588B2 (en) 2006-03-03 2010-02-23 PhysioWave, Inc. Dual-mode physiologic monitoring systems and methods
WO2007103835A2 (en) 2006-03-03 2007-09-13 Physiowave Inc. Physiologic monitoring systems and methods
US7705756B2 (en) * 2006-11-03 2010-04-27 Slicex, Inc. Multi-channel analog-to-digital converter
US7385443B1 (en) 2007-01-31 2008-06-10 Medtronic, Inc. Chopper-stabilized instrumentation amplifier
US7391257B1 (en) * 2007-01-31 2008-06-24 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US9615744B2 (en) * 2007-01-31 2017-04-11 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US8265769B2 (en) 2007-01-31 2012-09-11 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for wireless telemetry
US8781595B2 (en) * 2007-04-30 2014-07-15 Medtronic, Inc. Chopper mixer telemetry circuit
US7471148B2 (en) * 2007-05-21 2008-12-30 Sekio Epson Corporation Differential low noise amplifier (LNA) with common mode feedback and gain control
JP5215399B2 (ja) * 2007-09-14 2013-06-19 アナログ デバイシーズ インク 改良されたローパワー、ローノイズアンプシステム
US8380314B2 (en) 2007-09-26 2013-02-19 Medtronic, Inc. Patient directed therapy control
EP2200692B1 (de) * 2007-09-26 2016-11-09 Medtronic, Inc. Frequenzselektive überwachung von physiologischen signalen
EP2211986B1 (de) 2007-10-16 2013-11-20 Medtronic, Inc. Therapiesteuerung basierend auf patientenbewegungszustand
US9072870B2 (en) 2008-01-25 2015-07-07 Medtronic, Inc. Sleep stage detection
TW200932194A (en) * 2008-01-29 2009-08-01 Univ Nat Taiwan A feed-forward automatic-gain control amplifier (FFAGCA) for biomedical application
US7961041B2 (en) * 2008-05-15 2011-06-14 Infineon Technologies Ag System and method for generating a reference voltage
US7724080B2 (en) * 2008-06-11 2010-05-25 Intersil Americas Inc. Chopper stabilized amplifier
US7764118B2 (en) * 2008-09-11 2010-07-27 Analog Devices, Inc. Auto-correction feedback loop for offset and ripple suppression in a chopper-stabilized amplifier
US8478402B2 (en) 2008-10-31 2013-07-02 Medtronic, Inc. Determining intercardiac impedance
US9770204B2 (en) 2009-11-11 2017-09-26 Medtronic, Inc. Deep brain stimulation for sleep and movement disorders
US9211411B2 (en) 2010-08-26 2015-12-15 Medtronic, Inc. Therapy for rapid eye movement behavior disorder (RBD)
EP2442443B8 (de) * 2010-10-15 2018-02-07 IMEC vzw Erfassungssystem für Mehrkanal-Biopotenzsignal
KR101832264B1 (ko) * 2011-08-25 2018-04-13 삼성전자주식회사 생체 신호를 측정하는 장치 및 방법
US8493148B2 (en) * 2011-11-04 2013-07-23 Analog Devices, Inc. Gain enhancement for cascode structure
US9351653B1 (en) 2012-11-29 2016-05-31 Intan Technologies, LLC Multi-channel reconfigurable systems and methods for sensing biopotential signals
TWI604690B (zh) 2012-12-04 2017-11-01 Aist Operational Amplifier
US9439150B2 (en) 2013-03-15 2016-09-06 Medtronic, Inc. Control of spectral agressors in a physiological signal montoring device
US9521979B2 (en) 2013-03-15 2016-12-20 Medtronic, Inc. Control of spectral agressors in a physiological signal monitoring device
WO2015026988A1 (en) 2013-08-20 2015-02-26 The Regents Of The University Of California Systems and methods for electrocorticography signal acquisition
CN105556834B (zh) * 2013-09-13 2018-06-26 阿尔卑斯电气株式会社 放大电路
KR101987408B1 (ko) 2014-01-21 2019-06-11 삼성전자주식회사 생체 임피던스 측정 장치 및 방법
US9924904B2 (en) 2014-09-02 2018-03-27 Medtronic, Inc. Power-efficient chopper amplifier
WO2016058004A1 (en) * 2014-10-10 2016-04-14 Ruse Technologies, Llc Method and system for hospital, emt/ems, and aed grade external defibrillation and transcutaneous pacing
US9614481B2 (en) 2015-03-31 2017-04-04 Analog Devices, Inc. Apparatus and methods for chopping ripple reduction in amplifiers
CA3017199A1 (en) * 2016-03-09 2017-09-14 Peerbridge Health, Inc. System and method for monitoring conditions of a subject based on wireless sensor data
US10517488B2 (en) 2016-12-21 2019-12-31 General Electric Company Patient monitoring system and leadset having multiple capacitive patient connectors and a single galvanic patient connector
CN107294501B (zh) * 2017-05-11 2020-11-24 华南理工大学 一种斩波放大电路装置及其实现方法
US10396724B1 (en) * 2018-05-30 2019-08-27 Semiconductor Components Industries, Llc Amplifier with common mode loop and chop
US10675477B2 (en) 2018-10-26 2020-06-09 Ruse Technologies, Llc Implantable cardioverter defibrillators using high power amplifiers with impedance tracking lowpass filters
CN109645978B (zh) * 2019-01-29 2021-02-23 北京大学 一种脑部探针读出电路
CN110622413B (zh) * 2019-08-15 2021-07-20 深圳市汇顶科技股份有限公司 放大电路、芯片和电子设备
US11082019B2 (en) 2020-01-07 2021-08-03 Semiconductor Components Industries, Llc Amplifier with adaptively-controlled local feedback loop
US20210338130A1 (en) * 2020-04-29 2021-11-04 Samantha Fox Pediatric Electrocardiogram Electrode and Cover
WO2022133298A1 (en) * 2020-12-18 2022-06-23 Medtronic, Inc. Device with switched capacitor charge pump sensing circuitry
US11484718B2 (en) 2021-01-22 2022-11-01 Ruse Technologies, Llc Multimode ICD system comprising phased array amplifiers to treat and manage CRT, CHF, and PVC disorders using ventricle level-shifting therapy to minimize VT/VF and SCA
US20230012505A1 (en) * 2021-07-19 2023-01-19 The University Court Of The University Of Glasgow Sensor readout circuit for a biomagnetism measurement system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4138649A (en) * 1977-03-25 1979-02-06 Emerson Electric Co. Amplifier system
US4933644A (en) * 1988-12-23 1990-06-12 Texas Instruments, Incorporated Common-mode feedback bias generator for operational amplifiers
US4912423A (en) * 1989-02-27 1990-03-27 General Electric Company Chopper-stabilized operational transconductance amplifier
US4947135A (en) * 1989-07-28 1990-08-07 Motorola, Inc. Single-ended chopper stabilized operational amplifier

Also Published As

Publication number Publication date
JPH06224659A (ja) 1994-08-12
DE69322899D1 (de) 1999-02-18
EP0568197A2 (de) 1993-11-03
EP0568197A3 (en) 1994-09-21
US5206602A (en) 1993-04-27
EP0568197B1 (de) 1999-01-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AGILENT TECHNOLOGIES, INC. (N.D.GES.D.STAATES DELA

8339 Ceased/non-payment of the annual fee