GB2598120B - Fully differential amplifier, circuit and system - Google Patents
Fully differential amplifier, circuit and system Download PDFInfo
- Publication number
- GB2598120B GB2598120B GB2012905.2A GB202012905A GB2598120B GB 2598120 B GB2598120 B GB 2598120B GB 202012905 A GB202012905 A GB 202012905A GB 2598120 B GB2598120 B GB 2598120B
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- differential amplifier
- fully differential
- fully
- 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.)
- Active
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
-
- 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
- H03F3/45192—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
- H03F3/45479—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
- H03F3/45645—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
- H03F3/45632—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
- H03F3/45695—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 feedforward means
- H03F3/45699—Measuring at the input circuit of the differential amplifier
- H03F3/45704—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
- H03F3/45932—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
-
- 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
- H03F3/45977—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 using switching means, e.g. sample and hold
-
- 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
- H03F2203/45061—Indexing scheme relating to differential amplifiers the common mode reference signal being taken or deducted from the one or more inputs of the differential amplifier
-
- 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
- H03F2203/45111—Two dif amps of the same type are used one dif amp for each input signal
-
- 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
- H03F2203/45356—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
- H03F2203/45551—Indexing scheme relating to differential amplifiers the IC comprising one or more switched capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2012905.2A GB2598120B (en) | 2020-08-18 | 2020-08-18 | Fully differential amplifier, circuit and system |
| PCT/GB2021/052127 WO2022038347A1 (en) | 2020-08-18 | 2021-08-17 | Fully differential amplifier, circuit and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2012905.2A GB2598120B (en) | 2020-08-18 | 2020-08-18 | Fully differential amplifier, circuit and system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202012905D0 GB202012905D0 (en) | 2020-09-30 |
| GB2598120A GB2598120A (en) | 2022-02-23 |
| GB2598120B true GB2598120B (en) | 2024-09-25 |
Family
ID=72615307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2012905.2A Active GB2598120B (en) | 2020-08-18 | 2020-08-18 | Fully differential amplifier, circuit and system |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2598120B (en) |
| WO (1) | WO2022038347A1 (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5963088A (en) * | 1996-07-29 | 1999-10-05 | Kabushiki Kaisha Toshiba | Fully balanced analog circuit |
| EP1168603A1 (en) * | 2000-06-26 | 2002-01-02 | STMicroelectronics S.r.l. | Switched-capacitor, fully-differential operational amplifier with high switching frequency |
| US6573785B1 (en) * | 2002-01-03 | 2003-06-03 | Intel Corporation | Method, apparatus, and system for common mode feedback circuit using switched capacitors |
| CN101888238A (en) * | 2009-05-15 | 2010-11-17 | 联阳半导体股份有限公司 | Capacitor interface circuit |
| US20130300503A1 (en) * | 2012-05-10 | 2013-11-14 | That Corporation | Programmable-gain amplifier |
| EP2937996A2 (en) * | 2014-04-22 | 2015-10-28 | MediaTek, Inc | Low pass filter with common-mode noise reduction |
| JP2017046216A (en) * | 2015-08-27 | 2017-03-02 | 旭化成エレクトロニクス株式会社 | Differential amplifier |
| GB2553393A (en) * | 2016-08-30 | 2018-03-07 | Cirrus Logic Int Semiconductor Ltd | Fully-differential operational amplifier system |
| US20180209858A1 (en) * | 2017-01-18 | 2018-07-26 | Shenzhen GOODIX Technology Co., Ltd. | Apparatus for detecting capacitance, electronic device and apparatus for detecting force |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007538449A (en) * | 2004-05-18 | 2007-12-27 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Amplifier circuit with automatic gain correction |
-
2020
- 2020-08-18 GB GB2012905.2A patent/GB2598120B/en active Active
-
2021
- 2021-08-17 WO PCT/GB2021/052127 patent/WO2022038347A1/en not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5963088A (en) * | 1996-07-29 | 1999-10-05 | Kabushiki Kaisha Toshiba | Fully balanced analog circuit |
| EP1168603A1 (en) * | 2000-06-26 | 2002-01-02 | STMicroelectronics S.r.l. | Switched-capacitor, fully-differential operational amplifier with high switching frequency |
| US6573785B1 (en) * | 2002-01-03 | 2003-06-03 | Intel Corporation | Method, apparatus, and system for common mode feedback circuit using switched capacitors |
| CN101888238A (en) * | 2009-05-15 | 2010-11-17 | 联阳半导体股份有限公司 | Capacitor interface circuit |
| US20130300503A1 (en) * | 2012-05-10 | 2013-11-14 | That Corporation | Programmable-gain amplifier |
| EP2937996A2 (en) * | 2014-04-22 | 2015-10-28 | MediaTek, Inc | Low pass filter with common-mode noise reduction |
| JP2017046216A (en) * | 2015-08-27 | 2017-03-02 | 旭化成エレクトロニクス株式会社 | Differential amplifier |
| GB2553393A (en) * | 2016-08-30 | 2018-03-07 | Cirrus Logic Int Semiconductor Ltd | Fully-differential operational amplifier system |
| US20180209858A1 (en) * | 2017-01-18 | 2018-07-26 | Shenzhen GOODIX Technology Co., Ltd. | Apparatus for detecting capacitance, electronic device and apparatus for detecting force |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2598120A (en) | 2022-02-23 |
| WO2022038347A1 (en) | 2022-02-24 |
| GB202012905D0 (en) | 2020-09-30 |
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