TW200924373A - Offset cancellation single-ended operational amplifier and method thereof - Google Patents

Offset cancellation single-ended operational amplifier and method thereof Download PDF

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Publication number
TW200924373A
TW200924373A TW096143509A TW96143509A TW200924373A TW 200924373 A TW200924373 A TW 200924373A TW 096143509 A TW096143509 A TW 096143509A TW 96143509 A TW96143509 A TW 96143509A TW 200924373 A TW200924373 A TW 200924373A
Authority
TW
Taiwan
Prior art keywords
input
output
current
operational amplifier
amplifier
Prior art date
Application number
TW096143509A
Other languages
English (en)
Chinese (zh)
Other versions
TWI346444B (https=
Inventor
Shui-Mu Lin
Tsung-Wei Huang
Jien-Sheng Chen
Kwan-Jen Chu
Original Assignee
Richtek Technology Corp
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 Richtek Technology Corp filed Critical Richtek Technology Corp
Priority to TW096143509A priority Critical patent/TW200924373A/zh
Priority to US12/292,061 priority patent/US7714645B2/en
Publication of TW200924373A publication Critical patent/TW200924373A/zh
Application granted granted Critical
Publication of TWI346444B publication Critical patent/TWI346444B/zh

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
    • H03F3/45479—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • H03F3/3022—CMOS common source output SEPP 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
    • H03F3/45179—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
    • 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
    • H03F2203/45212—Indexing scheme relating to differential amplifiers the differential amplifier being designed to have a reduced offset
    • 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
    • H03F2203/45616—Indexing scheme relating to differential amplifiers the IC comprising more than one switch, which are not cross coupled
    • 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
    • H03F2203/45726—Indexing scheme relating to differential amplifiers the LC comprising more than one switch, which are not cross coupled

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
TW096143509A 2007-11-16 2007-11-16 Offset cancellation single-ended operational amplifier and method thereof TW200924373A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW096143509A TW200924373A (en) 2007-11-16 2007-11-16 Offset cancellation single-ended operational amplifier and method thereof
US12/292,061 US7714645B2 (en) 2007-11-16 2008-11-12 Offset cancellation of a single-ended operational amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW096143509A TW200924373A (en) 2007-11-16 2007-11-16 Offset cancellation single-ended operational amplifier and method thereof

Publications (2)

Publication Number Publication Date
TW200924373A true TW200924373A (en) 2009-06-01
TWI346444B TWI346444B (https=) 2011-08-01

Family

ID=40641291

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096143509A TW200924373A (en) 2007-11-16 2007-11-16 Offset cancellation single-ended operational amplifier and method thereof

Country Status (2)

Country Link
US (1) US7714645B2 (https=)
TW (1) TW200924373A (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8878601B2 (en) 2012-05-31 2014-11-04 Taiwan Semiconductor Manufacturing Company, Ltd. Power supply circuit with positive and negative feedback loops
CN104348429A (zh) * 2013-07-26 2015-02-11 联咏科技股份有限公司 直流漂移消除电路

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100244711A1 (en) * 2009-03-30 2010-09-30 Richard Landry Gray Self-Calibrating White Light Emitting Diode Module
CN103248329B (zh) * 2013-04-26 2016-04-13 无锡泽太微电子有限公司 单端和差分天线复用功率放大器电路及方法
US9547324B2 (en) * 2014-04-03 2017-01-17 Qualcomm Incorporated Power-efficient, low-noise, and process/voltage/temperature (PVT)—insensitive regulator for a voltage-controlled oscillator (VCO)
CN106466177B (zh) * 2015-08-17 2023-11-17 浙江诺尔康神经电子科技股份有限公司 一种包含脉宽调整的人工耳蜗神经遥测系统
US11353909B2 (en) * 2020-03-27 2022-06-07 Synaptics Incorporated Operational amplifier, integrated circuit, and method for operating the same
US11444580B2 (en) 2020-04-01 2022-09-13 Stmicroelectronics International N.V. Devices and methods for offset cancellation
US12261578B2 (en) 2020-04-01 2025-03-25 Stmicroelectronics International N.V. Devices and methods for offset cancellation
US11381207B2 (en) 2020-04-02 2022-07-05 Stmicroelectronics International N.V. Apparatus and method for an analog to digital converter
CN111416582B (zh) * 2020-04-08 2023-06-09 上海必阳科技有限公司 一种运算放大器集成电路输入失调电压自校准电路
US11677371B2 (en) 2020-08-06 2023-06-13 Semiconductor Components Industries, Llc Offset compensation circuitry for an amplification circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6194967B1 (en) * 1998-06-17 2001-02-27 Intel Corporation Current mirror circuit
US6825721B2 (en) * 2002-07-12 2004-11-30 Texas Instruments Incorporated Amplifier gain boost circuitry and method
US7091773B1 (en) * 2004-07-28 2006-08-15 Xilinx, Inc. Limiting circuit with level limited feedback

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8878601B2 (en) 2012-05-31 2014-11-04 Taiwan Semiconductor Manufacturing Company, Ltd. Power supply circuit with positive and negative feedback loops
TWI485542B (zh) * 2012-05-31 2015-05-21 台灣積體電路製造股份有限公司 電源供應電路和電源供應方法
CN104348429A (zh) * 2013-07-26 2015-02-11 联咏科技股份有限公司 直流漂移消除电路
CN104348429B (zh) * 2013-07-26 2017-05-17 联咏科技股份有限公司 直流漂移消除电路

Also Published As

Publication number Publication date
US7714645B2 (en) 2010-05-11
US20090128238A1 (en) 2009-05-21
TWI346444B (https=) 2011-08-01

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