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GB202012904D0 - Impedance to voltage converter circuit and system for non-ideal operational amplifiers - Google Patents

Impedance to voltage converter circuit and system for non-ideal operational amplifiers

Info

Publication number
GB202012904D0
GB202012904D0 GBGB2012904.5A GB202012904A GB202012904D0 GB 202012904 D0 GB202012904 D0 GB 202012904D0 GB 202012904 A GB202012904 A GB 202012904A GB 202012904 D0 GB202012904 D0 GB 202012904D0
Authority
GB
United Kingdom
Prior art keywords
impedance
voltage converter
converter circuit
operational amplifiers
ideal operational
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.)
Granted
Application number
GBGB2012904.5A
Other versions
GB2598119A (en
GB2598119B (en
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.)
Crypto Quantique Ltd
Original Assignee
Crypto Quantique Ltd
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 Crypto Quantique Ltd filed Critical Crypto Quantique Ltd
Priority to GB2012904.5A priority Critical patent/GB2598119B/en
Publication of GB202012904D0 publication Critical patent/GB202012904D0/en
Priority to PCT/GB2021/052128 priority patent/WO2022038348A1/en
Publication of GB2598119A publication Critical patent/GB2598119A/en
Application granted granted Critical
Publication of GB2598119B publication Critical patent/GB2598119B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0023—Measuring currents or voltages from sources with high internal resistance by means of measuring circuits with high input impedance, e.g. OP-amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/083—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements in transistor amplifiers
    • 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
    • H03F2200/462—Indexing scheme relating to amplifiers the current being sensed
    • 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
    • H03F2203/45044—One or more switches are opened or closed to balance the dif amp to reduce the offset of the dif amp
    • 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
    • H03F2203/45152—Balancing means being added at the input of a dif amp to reduce the offset of the dif amp
    • 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
    • H03F2203/45354—Indexing scheme relating to differential amplifiers the AAC comprising offset means
    • 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
    • H03F2203/45356—Indexing scheme relating to differential amplifiers the AAC comprising one or more op-amps, e.g. IC-blocks
    • 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
    • H03F2203/45514—Indexing scheme relating to differential amplifiers the FBC comprising one or more switched capacitors, 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
    • H03F2203/45534—Indexing scheme relating to differential amplifiers the FBC comprising multiple switches 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
    • H03F2203/45536—Indexing scheme relating to differential amplifiers the FBC comprising a switch 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
    • H03F2203/45551—Indexing scheme relating to differential amplifiers the IC comprising one or more switched capacitors
    • 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
    • H03F2203/45586—Indexing scheme relating to differential amplifiers the IC comprising offset generating means

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
GB2012904.5A 2020-08-18 2020-08-18 Impedance to voltage converter circuit and system for non-ideal operational amplifiers Active GB2598119B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2012904.5A GB2598119B (en) 2020-08-18 2020-08-18 Impedance to voltage converter circuit and system for non-ideal operational amplifiers
PCT/GB2021/052128 WO2022038348A1 (en) 2020-08-18 2021-08-17 Impedance to voltage converter circuit and system for non-ideal operational amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2012904.5A GB2598119B (en) 2020-08-18 2020-08-18 Impedance to voltage converter circuit and system for non-ideal operational amplifiers

Publications (3)

Publication Number Publication Date
GB202012904D0 true GB202012904D0 (en) 2020-09-30
GB2598119A GB2598119A (en) 2022-02-23
GB2598119B GB2598119B (en) 2024-09-11

Family

ID=72615438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2012904.5A Active GB2598119B (en) 2020-08-18 2020-08-18 Impedance to voltage converter circuit and system for non-ideal operational amplifiers

Country Status (2)

Country Link
GB (1) GB2598119B (en)
WO (1) WO2022038348A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1051247A (en) * 1996-07-29 1998-02-20 Toshiba Corp Fully differential analog circuit
EP1758243A1 (en) * 2005-08-26 2007-02-28 Acqiris SA Low offset Sample-and-Hold and Amplifier
JP2008008724A (en) * 2006-06-28 2008-01-17 Sanyo Electric Co Ltd Current detection circuit
DE102010028037B4 (en) * 2010-04-21 2020-07-23 Robert Bosch Gmbh Switched-capacitor integrator with charge feedback to increase the input impedance
US20120025063A1 (en) * 2010-07-28 2012-02-02 Nova Research, Inc. Linear/logarithmic capacitive trans-impedance amplifier circuit
PT2501036E (en) * 2011-03-17 2014-09-03 Ditest Fahrzeugdiagnose Gmbh Circuit configuration for evaluating photoelectric measurements
US9252725B2 (en) * 2012-10-11 2016-02-02 Analog Devices, Inc. Feed-forward circuit to prevent phase inversion
US9459301B2 (en) * 2014-01-27 2016-10-04 ProPlus Design Solutions, Inc. Apparatuses and methods for measuring flicker noise
US9190961B1 (en) * 2014-04-29 2015-11-17 Hong Kong Applied Science & Technology Research Institute Company, Limited Digitally-programmable gain amplifier with direct-charge transfer and offset cancellation

Also Published As

Publication number Publication date
WO2022038348A1 (en) 2022-02-24
GB2598119A (en) 2022-02-23
GB2598119B (en) 2024-09-11

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