CN107346959A - 一种针对输出工作点进行失调电压校正的运算放大器 - Google Patents
一种针对输出工作点进行失调电压校正的运算放大器 Download PDFInfo
- Publication number
- CN107346959A CN107346959A CN201710453474.5A CN201710453474A CN107346959A CN 107346959 A CN107346959 A CN 107346959A CN 201710453474 A CN201710453474 A CN 201710453474A CN 107346959 A CN107346959 A CN 107346959A
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- CN
- China
- Prior art keywords
- switch
- nmos pass
- transistor
- pmos transistor
- pass transistor
- 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
Links
- 239000004065 semiconductor Substances 0.000 claims description 13
- 239000013078 crystal Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/342—Negative-feedback-circuit arrangements with or without positive feedback in field-effect transistor 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/471—Indexing scheme relating to amplifiers the voltage 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
- H03F2203/45031—Indexing scheme relating to differential amplifiers the differential amplifier amplifying transistors are compositions of multiple transistors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710453474.5A CN107346959B (zh) | 2017-06-15 | 2017-06-15 | 一种针对输出工作点进行失调电压校正的运算放大器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710453474.5A CN107346959B (zh) | 2017-06-15 | 2017-06-15 | 一种针对输出工作点进行失调电压校正的运算放大器 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107346959A true CN107346959A (zh) | 2017-11-14 |
CN107346959B CN107346959B (zh) | 2020-08-21 |
Family
ID=60253385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710453474.5A Active CN107346959B (zh) | 2017-06-15 | 2017-06-15 | 一种针对输出工作点进行失调电压校正的运算放大器 |
Country Status (1)
Country | Link |
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CN (1) | CN107346959B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110618602A (zh) * | 2019-08-30 | 2019-12-27 | 华中师范大学 | 计时电路、芯片、时间振幅转换器及其控制方法 |
CN114610109A (zh) * | 2022-04-15 | 2022-06-10 | 电子科技大学 | 一种抗地弹的微电流镜 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1297306A (zh) * | 1999-11-08 | 2001-05-30 | 汤姆森许可公司 | 用于多媒体监视器的频率相关的x射线保护装置 |
CN101083451A (zh) * | 2006-05-31 | 2007-12-05 | 中国科学院微电子研究所 | 一种数字自动校准运放失调电压电路及其方法 |
US20100117735A1 (en) * | 2008-11-10 | 2010-05-13 | Reinhard Oelmaier | Circuit |
CN101924551A (zh) * | 2010-07-27 | 2010-12-22 | 中国航天科技集团公司第九研究院第七七一研究所 | 一种fpaa失调数字自动校准方法 |
CN101986557A (zh) * | 2010-11-24 | 2011-03-16 | 无锡思泰迪半导体有限公司 | 一种利用衬体偏置效应消除运放失调电压的方法及其结构 |
CN102195625A (zh) * | 2011-04-11 | 2011-09-21 | 安徽维嘉星火动平衡制造有限公司 | 一种应用在硬支撑平衡机测量系统中的选通开关 |
TW201423301A (zh) * | 2012-12-13 | 2014-06-16 | Issc Technologies Corp | 電壓產生器 |
-
2017
- 2017-06-15 CN CN201710453474.5A patent/CN107346959B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1297306A (zh) * | 1999-11-08 | 2001-05-30 | 汤姆森许可公司 | 用于多媒体监视器的频率相关的x射线保护装置 |
CN101083451A (zh) * | 2006-05-31 | 2007-12-05 | 中国科学院微电子研究所 | 一种数字自动校准运放失调电压电路及其方法 |
US20100117735A1 (en) * | 2008-11-10 | 2010-05-13 | Reinhard Oelmaier | Circuit |
CN101924551A (zh) * | 2010-07-27 | 2010-12-22 | 中国航天科技集团公司第九研究院第七七一研究所 | 一种fpaa失调数字自动校准方法 |
CN101986557A (zh) * | 2010-11-24 | 2011-03-16 | 无锡思泰迪半导体有限公司 | 一种利用衬体偏置效应消除运放失调电压的方法及其结构 |
CN102195625A (zh) * | 2011-04-11 | 2011-09-21 | 安徽维嘉星火动平衡制造有限公司 | 一种应用在硬支撑平衡机测量系统中的选通开关 |
TW201423301A (zh) * | 2012-12-13 | 2014-06-16 | Issc Technologies Corp | 電壓產生器 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110618602A (zh) * | 2019-08-30 | 2019-12-27 | 华中师范大学 | 计时电路、芯片、时间振幅转换器及其控制方法 |
CN110618602B (zh) * | 2019-08-30 | 2021-04-09 | 华中师范大学 | 计时电路、芯片、时间振幅转换器及其控制方法 |
CN114610109A (zh) * | 2022-04-15 | 2022-06-10 | 电子科技大学 | 一种抗地弹的微电流镜 |
CN114610109B (zh) * | 2022-04-15 | 2023-02-07 | 电子科技大学 | 一种抗地弹的微电流镜 |
Also Published As
Publication number | Publication date |
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CN107346959B (zh) | 2020-08-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An operational amplifier with offset voltage correction for output operating point Effective date of registration: 20210226 Granted publication date: 20200821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: HUATECH SEMICONDUCTOR, Inc. Registration number: Y2021990000197 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220407 Granted publication date: 20200821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: HUATECH SEMICONDUCTOR, Inc. Registration number: Y2021990000197 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An operational amplifier for correcting offset voltage at output operating points Effective date of registration: 20231222 Granted publication date: 20200821 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: HUATECH SEMICONDUCTOR, Inc. Registration number: Y2023980073740 |