EP2502344A4 - Chopper stabilized amplifier with filtering - Google Patents

Chopper stabilized amplifier with filtering

Info

Publication number
EP2502344A4
EP2502344A4 EP10832164A EP10832164A EP2502344A4 EP 2502344 A4 EP2502344 A4 EP 2502344A4 EP 10832164 A EP10832164 A EP 10832164A EP 10832164 A EP10832164 A EP 10832164A EP 2502344 A4 EP2502344 A4 EP 2502344A4
Authority
EP
European Patent Office
Prior art keywords
filtering
chopper stabilized
stabilized amplifier
amplifier
chopper
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.)
Withdrawn
Application number
EP10832164A
Other languages
German (de)
French (fr)
Other versions
EP2502344A1 (en
Inventor
Eric Blackall
Ross Teggatz
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.)
Triune IP LLC
Original Assignee
Triune IP LLC
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 Triune IP LLC filed Critical Triune IP LLC
Publication of EP2502344A1 publication Critical patent/EP2502344A1/en
Publication of EP2502344A4 publication Critical patent/EP2502344A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
    • H03F3/387—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only
    • 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
    • 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
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/168—Two amplifying stages are coupled by means of a filter circuit
    • 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
    • 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
    • H03F2203/45138—Two or more differential amplifiers in IC-block form are combined, e.g. measuring amplifiers
    • 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
    • H03F2203/45512—Indexing scheme relating to differential amplifiers the FBC comprising one or more capacitors, not being switched capacitors, and being coupled between the LC and the IC
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
EP10832164A 2009-11-18 2010-11-18 Chopper stabilized amplifier with filtering Withdrawn EP2502344A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26248409P 2009-11-18 2009-11-18
PCT/US2010/057199 WO2011063101A1 (en) 2009-11-18 2010-11-18 Chopper stabilized amplifier with filtering

Publications (2)

Publication Number Publication Date
EP2502344A1 EP2502344A1 (en) 2012-09-26
EP2502344A4 true EP2502344A4 (en) 2013-03-13

Family

ID=44059985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10832164A Withdrawn EP2502344A4 (en) 2009-11-18 2010-11-18 Chopper stabilized amplifier with filtering

Country Status (2)

Country Link
EP (1) EP2502344A4 (en)
WO (1) WO2011063101A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10063284B2 (en) 2014-03-04 2018-08-28 Triune Ip Llc Isolation for communication and power
CN110474611B (en) * 2019-07-29 2023-07-14 深圳市锐能微科技有限公司 Chopper preamplifier and design method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090278597A1 (en) * 2008-05-07 2009-11-12 Texas Instruments Inc. Slew rate and settling time improvement circuitry and method for 3-stage amplifier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7262654B2 (en) * 2005-01-14 2007-08-28 Cirrus Logic, Inc. Circuits and methods for minimizing chopping artifacts at the output of a chopper-stabilized operational amplifier
US7382183B2 (en) * 2006-07-18 2008-06-03 Microchip Technology Incorporated Minimizing switching noise and its effects in auto-zeroed amplifiers
US7714757B2 (en) * 2007-09-26 2010-05-11 Medtronic, Inc. Chopper-stabilized analog-to-digital converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090278597A1 (en) * 2008-05-07 2009-11-12 Texas Instruments Inc. Slew rate and settling time improvement circuitry and method for 3-stage amplifier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011063101A1 *

Also Published As

Publication number Publication date
WO2011063101A1 (en) 2011-05-26
EP2502344A1 (en) 2012-09-26

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20120525

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20130211

RIC1 Information provided on ipc code assigned before grant

Ipc: H03H 19/00 20060101ALN20130205BHEP

Ipc: H03F 3/00 20060101ALI20130205BHEP

Ipc: H03F 3/45 20060101ALI20130205BHEP

Ipc: H03F 1/02 20060101ALI20130205BHEP

Ipc: H03F 3/387 20060101AFI20130205BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20130911