AU2003264757A1 - Transconductance amplifiers - Google Patents

Transconductance amplifiers

Info

Publication number: AU2003264757A1
Authority: AU; Australia
Prior art keywords: transconductance amplifiers; transconductance; amplifiers
Prior art date: 2002-09-10
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.): Abandoned

Application number

AU2003264757A

Other versions

AU2003264757A8 (en

Inventor

Edward Mauger Granville

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.)

Cirrus Logic International UK Ltd

Original Assignee

Wolfson Microelectronics PLC

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.)

2002-09-10

Filing date

2003-09-10

Publication date

2004-04-30

2002-09-10 Priority claimed from GB0220990A external-priority patent/GB2393055B/en

2003-09-10 Application filed by Wolfson Microelectronics PLC filed Critical Wolfson Microelectronics PLC

2004-04-30 Publication of AU2003264757A1 publication Critical patent/AU2003264757A1/en

2004-04-30 Publication of AU2003264757A8 publication Critical patent/AU2003264757A8/en

Status Abandoned legal-status Critical Current

Classifications

- 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
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/36—Analogue value compared with reference values simultaneously only, i.e. parallel type
- H03M1/361—Analogue value compared with reference values simultaneously only, i.e. parallel type having a separate comparator and reference value for each quantisation level, i.e. full flash converter type
- 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
- H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
- H03M1/16—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit with scale factor modification, i.e. by changing the amplification between the steps
- H03M1/164—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit with scale factor modification, i.e. by changing the amplification between the steps the steps being performed sequentially in series-connected stages
- H03M1/167—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit with scale factor modification, i.e. by changing the amplification between the steps the steps being performed sequentially in series-connected stages all stages comprising simultaneous converters

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Theoretical Computer Science (AREA)
Amplifiers (AREA)
Analogue/Digital Conversion (AREA)

AU2003264757A 2002-09-10 2003-09-10 Transconductance amplifiers Abandoned AU2003264757A1 (en)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
GB0220990.6		2002-09-10
GB0220990A GB2393055B (en)	2002-09-10	2002-09-10	Transconductance amplifiers
US10/247,357		2002-09-20
US10/247,357 US6831507B2 (en)	2002-09-10	2002-09-20	Transconductance amplifiers
PCT/GB2003/003941 WO2004025827A2 (en)	2002-09-10	2003-09-10	Transconductance amplifiers

Publications (2)

Publication Number	Publication Date
AU2003264757A1 true AU2003264757A1 (en)	2004-04-30
AU2003264757A8 AU2003264757A8 (en)	2004-04-30

Family

ID=31995695

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU2003264757A Abandoned AU2003264757A1 (en)	2002-09-10	2003-09-10	Transconductance amplifiers

Country Status (3)

Country	Link
CN (1)	CN100511978C (en)
AU (1)	AU2003264757A1 (en)
WO (1)	WO2004025827A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2011109475A1 (en) *	2010-03-02	2011-09-09	Marvell World Trade Ltd	Dual carrier amplifier circuits and methods
CN102403966B (en) *	2010-09-14	2015-07-22	意法半导体研发（上海）有限公司	Method and device for reducing input differential pairs of voltage interpolation amplifier of digital-to-analog converter
US9264002B2 (en) *	2014-02-19	2016-02-16	Analog Devices Global	Apparatus and methods for improving common mode rejection ratio
US9294037B2 (en) *	2014-03-24	2016-03-22	Analog Devices Global	Apparatus and methods for autozero amplifiers
TWI545890B (en) *	2014-05-09	2016-08-11	友達光電股份有限公司	Electronic device and comparator thereof
KR102509819B1 (en) *	2015-11-04	2023-03-14	삼성전자주식회사	Signal processing apparatus and signal processing method
CN107947794B (en) *	2017-11-30	2021-02-26	无锡中微爱芯电子有限公司	Error correction circuit for correcting offset error of analog-to-digital converter
CN110120814B (en) *	2019-04-25	2021-05-04	电子科技大学	A current comparator and comparison method for eliminating offset error
US11272598B2 (en) *	2020-02-07	2022-03-08	Analog Devices International Unlimited Company	Transconductance circuits and methods
TWI878942B (en) *	2023-06-30	2025-04-01	瑞昱半導體股份有限公司	Switched capacitor circuit and pipelined analog-to-digital convertor including the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4404525A (en) *	1981-03-03	1983-09-13	American Microsystems, Inc.	Switched capacitor gain stage with offset and switch feedthrough cancellation scheme
FR2604835B1 (en) *	1986-10-07	1995-05-05	Efcis	HIGH GAIN SWITCHED CAPACITY AMPLIFIER
DE58909170D1 (en) *	1989-12-01	1995-05-11	Itt Ind Gmbh Deutsche	Transconductance amplifier.
JPH0645875A (en) *	1992-07-24	1994-02-18	Nec Corp	Switched capacitor circuit
JP4066211B2 (en) *	1997-06-06	2008-03-26	財団法人国際科学振興財団	Charge transfer amplifier circuit, voltage comparator and sense amplifier
US6011433A (en) *	1998-10-22	2000-01-04	Pmc-Sierra Ltd.	Generalized procedure for the calibration of switched capacitor gain stages
US6169427B1 (en) *	1998-12-10	2001-01-02	National Semiconductor Corporation	Sample and hold circuit having single-ended input and differential output and method

2003
- 2003-09-10 CN CNB038213451A patent/CN100511978C/en not_active Expired - Lifetime
- 2003-09-10 AU AU2003264757A patent/AU2003264757A1/en not_active Abandoned
- 2003-09-10 WO PCT/GB2003/003941 patent/WO2004025827A2/en not_active Ceased

Also Published As

Publication number	Publication date
AU2003264757A8 (en)	2004-04-30
WO2004025827A3 (en)	2004-07-01
CN100511978C (en)	2009-07-08
WO2004025827A2 (en)	2004-03-25
CN1682437A (en)	2005-10-12

Publication	Publication Date	Title
AU2003218031A1 (en)	2003-09-29	Cascode amplifier
GB2393055B (en)	2006-08-30	Transconductance amplifiers
AU2002243627A1 (en)	2002-08-19	Improved single-ended planar-magnetic speaker
AU2002234198A1 (en)	2002-07-16	Feedforward amplifier
AU2003276700A1 (en)	2003-12-31	Switchable gain amplifier
AU2003295737A1 (en)	2004-06-18	Direct coupled distributed amplifier
AU2003294886A1 (en)	2004-07-14	Current sense amplifier
AU2003264508A1 (en)	2004-04-19	Amplification device
AU2003201121A1 (en)	2003-09-02	Rf amplifier
AU2003215854A1 (en)	2003-11-03	Power amplifier
AU2003217374A1 (en)	2003-10-27	Single-ended current sense amplifier
AU2003220105A1 (en)	2003-09-29	Cross-differential amplifier
AU2003281983A1 (en)	2004-06-18	Amplifier assembly
AU2003246494A1 (en)	2004-02-09	Multi-standard amplifier
AU2003271867A1 (en)	2004-04-23	Raman amplifier
AU2003268076A1 (en)	2004-02-25	Highly linear variable gain amplifier
AU2003219450A1 (en)	2003-12-02	Power amplifier end stage
AU2003264757A1 (en)	2004-04-30	Transconductance amplifiers
AU2002361366A1 (en)	2003-07-09	Compensated, digital class d amplifier
AU2003275648A1 (en)	2004-05-13	Dynamic gain equalizer
AU2003274497A1 (en)	2004-06-15	Travelling-wave amplifier
AU2003253182A1 (en)	2004-03-03	Operational amplifier
AUPR752101A0 (en)	2001-09-27	Amplifier improvements
AU2003214516A1 (en)	2003-11-10	Operational amplifier integrator
EP1229644A3 (en)	2004-03-31	Logarithmic amplifier

Legal Events

Date	Code	Title	Description
2005-06-09	MK6	Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase