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TW200801882A - Bandgap reference circuit - Google Patents

Bandgap reference circuit

Info

Publication number
TW200801882A
TW200801882A TW96122311A TW96122311A TW200801882A TW 200801882 A TW200801882 A TW 200801882A TW 96122311 A TW96122311 A TW 96122311A TW 96122311 A TW96122311 A TW 96122311A TW 200801882 A TW200801882 A TW 200801882A
Authority
TW
Taiwan
Prior art keywords
coupled
operational amplifier
reference circuit
bandgap reference
output terminal
Prior art date
Application number
TW96122311A
Other languages
Chinese (zh)
Inventor
Hung-I Chen
Yung-Chih Yen
Original Assignee
Mediatek Inc
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 Mediatek Inc filed Critical Mediatek Inc
Publication of TW200801882A publication Critical patent/TW200801882A/en

Links

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  • Control Of Electrical Variables (AREA)
  • Amplifiers (AREA)

Abstract

A bandgap reference circuit is disclosed, in which an operational amplifier comprises an output terminal and first and second input terminals, first and second transistors are coupled to the operational amplifier and a first resistor is coupled to between the output terminal of the operational amplifier and the first resistor. A first resistor ladder is coupled between the output terminal of the operational amplifier and the second transistor and comprises a plurality of second resistors connected in series and a plurality of switches each having a frost terminal coupled to a high-impendence path.
TW96122311A 2006-06-23 2007-06-21 Bandgap reference circuit TW200801882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80560906P 2006-06-23 2006-06-23

Publications (1)

Publication Number Publication Date
TW200801882A true TW200801882A (en) 2008-01-01

Family

ID=38991690

Family Applications (1)

Application Number Title Priority Date Filing Date
TW96122311A TW200801882A (en) 2006-06-23 2007-06-21 Bandgap reference circuit

Country Status (2)

Country Link
CN (1) CN101093401A (en)
TW (1) TW200801882A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009217809A (en) * 2008-02-12 2009-09-24 Seiko Epson Corp Reference voltage generating circuit, integrated circuit device and signal processing apparatus
US20110227538A1 (en) * 2010-03-19 2011-09-22 O2Micro, Inc Circuits for generating reference signals
TWI537697B (en) * 2010-04-13 2016-06-11 半導體組件工業公司 Programmable low-dropout regulator and methods therefor
JP2012151186A (en) * 2011-01-17 2012-08-09 Seiko Instruments Inc Resistance division circuit and voltage detection circuit
JP6126949B2 (en) 2013-09-02 2017-05-10 ルネサスエレクトロニクス株式会社 Temperature sensor
CN105717966A (en) * 2014-08-08 2016-06-29 快捷半导体(苏州)有限公司 Reference voltage generating circuit and method, and integrated circuit
CN104122928A (en) * 2014-08-20 2014-10-29 电子科技大学 Band-gap reference voltage generating circuit with low temperature drift coefficient
US11231736B2 (en) * 2017-11-17 2022-01-25 Samsung Electronics Co., Ltd. Reference voltage generating circuit method of generating reference voltage and integrated circuit including the same
CN108052151B (en) * 2017-12-14 2020-10-27 上海艾为电子技术股份有限公司 Band-gap reference voltage source of no-clamping operational amplifier
CN112054477A (en) * 2019-06-05 2020-12-08 凹凸电子（武汉）有限公司 Threshold setting circuit, battery protection system and battery protection method
CN112965565B (en) * 2021-02-08 2022-03-08 苏州领慧立芯科技有限公司 Band gap reference circuit with low temperature drift
CN115185324B (en) * 2021-04-07 2023-12-29 华大半导体有限公司 Voltage regulating circuit of band-gap reference voltage source
CN113627111B (en) * 2021-07-15 2024-05-07 重庆倍来电新能源有限公司 Tamper-proof trusted system for analog circuit

Also Published As

Publication number Publication date
CN101093401A (en) 2007-12-26

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