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TW200736878A - Low supply voltage bandgap reference circuit and negative temperature coefficient current generation unit thereof and method for supplying bandgap reference current - Google Patents

Low supply voltage bandgap reference circuit and negative temperature coefficient current generation unit thereof and method for supplying bandgap reference current

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Publication number
TW200736878A
TW200736878A TW095109404A TW95109404A TW200736878A TW 200736878 A TW200736878 A TW 200736878A TW 095109404 A TW095109404 A TW 095109404A TW 95109404 A TW95109404 A TW 95109404A TW 200736878 A TW200736878 A TW 200736878A
Authority
TW
Taiwan
Prior art keywords
bandgap reference
generation unit
current
temperature coefficient
negative temperature
Prior art date
Application number
TW095109404A
Other languages
Chinese (zh)
Other versions
TWI317463B (en
Inventor
Kuen-Shan Chang
Uei-Shan Wang
Mei-Show Chen
Chia-Ming Hong
Original Assignee
Faraday Tech 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 Faraday Tech Corp filed Critical Faraday Tech Corp
Priority to TW95109404A priority Critical patent/TWI317463B/en
Publication of TW200736878A publication Critical patent/TW200736878A/en
Application granted granted Critical
Publication of TWI317463B publication Critical patent/TWI317463B/en

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  • Amplifiers (AREA)

Abstract

A low supply voltage band-gap reference circuit, a negative temperature coefficient current generation unit thereof and a method for supplying bandgap reference current are provided. The low supply voltage band-gap reference circuit includes a positive negative temperature coefficient current generation unit and the negative temperature coefficient current generation unit, wherein the band-gap reference circuit is implemented with manner of current summing. The present invention can reduce the voltage headroom and the number of OP amplifiers requested by traditional voltage-summing manner to induce extra offset voltages into the output voltage with current-mode temperature compensation technique, so as to generate a stable and low-voltage band-gap reference current. Moreover, the present invention can save chip area and reduce chip cost by reducing the number of OP amplifiers and resistors with large values of resistances.
TW95109404A 2006-03-20 2006-03-20 Low supply voltage bandgap reference circuit and negative temperature coefficient current generation unit thereof and method for supplying bandgap reference current TWI317463B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW95109404A TWI317463B (en) 2006-03-20 2006-03-20 Low supply voltage bandgap reference circuit and negative temperature coefficient current generation unit thereof and method for supplying bandgap reference current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW95109404A TWI317463B (en) 2006-03-20 2006-03-20 Low supply voltage bandgap reference circuit and negative temperature coefficient current generation unit thereof and method for supplying bandgap reference current

Publications (2)

Publication Number Publication Date
TW200736878A true TW200736878A (en) 2007-10-01
TWI317463B TWI317463B (en) 2009-11-21

Family

ID=45073372

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95109404A TWI317463B (en) 2006-03-20 2006-03-20 Low supply voltage bandgap reference circuit and negative temperature coefficient current generation unit thereof and method for supplying bandgap reference current

Country Status (1)

Country Link
TW (1) TWI317463B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI402657B (en) * 2009-01-28 2013-07-21 Univ Meiji Semiconductor device
TWI567521B (en) * 2009-04-24 2017-01-21 三胞半導體公司 Voltage regulator circuit and related operating method
CN109765962A (en) * 2019-01-17 2019-05-17 深圳能芯半导体有限公司 The band-gap reference circuit of the high PSRR of low-power consumption
TWI744019B (en) * 2020-04-06 2021-10-21 瑞昱半導體股份有限公司 Process and temperature tracking reference load and method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI402657B (en) * 2009-01-28 2013-07-21 Univ Meiji Semiconductor device
TWI567521B (en) * 2009-04-24 2017-01-21 三胞半導體公司 Voltage regulator circuit and related operating method
CN109765962A (en) * 2019-01-17 2019-05-17 深圳能芯半导体有限公司 The band-gap reference circuit of the high PSRR of low-power consumption
TWI744019B (en) * 2020-04-06 2021-10-21 瑞昱半導體股份有限公司 Process and temperature tracking reference load and method thereof
US11566950B2 (en) 2020-04-06 2023-01-31 Realtek Semiconductor Corp. Process and temperature tracking reference load and method thereof

Also Published As

Publication number Publication date
TWI317463B (en) 2009-11-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees