GB2308684B - Switched-capacitor reference circuit - Google Patents

Switched-capacitor reference circuit

Info

Publication number
GB2308684B
GB2308684B GB9526313A GB9526313A GB2308684B GB 2308684 B GB2308684 B GB 2308684B GB 9526313 A GB9526313 A GB 9526313A GB 9526313 A GB9526313 A GB 9526313A GB 2308684 B GB2308684 B GB 2308684B
Authority
GB
United Kingdom
Prior art keywords
switched
reference circuit
capacitor reference
capacitor
circuit
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.)
Expired - Fee Related
Application number
GB9526313A
Other versions
GB9526313D0 (en
GB2308684A (en
Inventor
Vladimir Koifman
Afek Yachin
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Priority to GB9526313A priority Critical patent/GB2308684B/en
Publication of GB9526313D0 publication Critical patent/GB9526313D0/en
Publication of GB2308684A publication Critical patent/GB2308684A/en
Application granted granted Critical
Publication of GB2308684B publication Critical patent/GB2308684B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/22—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only
    • G05F3/222—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only with compensation for device parameters, e.g. Early effect, gain, manufacturing process, or external variations, e.g. temperature, loading, supply voltage
    • G05F3/225—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the bipolar type only with compensation for device parameters, e.g. Early effect, gain, manufacturing process, or external variations, e.g. temperature, loading, supply voltage producing a current or voltage as a predetermined function of the temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)
GB9526313A 1995-12-22 1995-12-22 Switched-capacitor reference circuit Expired - Fee Related GB2308684B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9526313A GB2308684B (en) 1995-12-22 1995-12-22 Switched-capacitor reference circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9526313A GB2308684B (en) 1995-12-22 1995-12-22 Switched-capacitor reference circuit

Publications (3)

Publication Number Publication Date
GB9526313D0 GB9526313D0 (en) 1996-02-21
GB2308684A GB2308684A (en) 1997-07-02
GB2308684B true GB2308684B (en) 2000-03-29

Family

ID=10785918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9526313A Expired - Fee Related GB2308684B (en) 1995-12-22 1995-12-22 Switched-capacitor reference circuit

Country Status (1)

Country Link
GB (1) GB2308684B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107368140A (en) * 2017-09-01 2017-11-21 无锡泽太微电子有限公司 Reduce the band-gap reference circuit of offset voltage using switching capacity

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2358097A (en) 1999-12-22 2001-07-11 Ericsson Telefon Ab L M A low voltage switched capacitor differential amplifier with improved dynamic range
WO2009069093A1 (en) 2007-11-30 2009-06-04 Nxp B.V. Arrangement and approach for providing a reference voltage
US9391569B2 (en) * 2014-03-31 2016-07-12 Qualcomm Incorporated Multi-stage switched-capacitor DC blocking circuit for audio frontend
CN104035469B (en) * 2014-07-01 2016-08-24 杭州士兰微电子股份有限公司 Band-gap reference circuit, integrated circuit and bandgap voltage reference generate method
EP3487075B1 (en) 2017-11-15 2024-03-13 ams AG Sensor arrangement to sense an external signal
DE102017127478B4 (en) * 2017-11-21 2022-12-29 Infineon Technologies Ag Device and method for generating a reference voltage
CN115016589B (en) * 2022-06-01 2023-11-10 南京英锐创电子科技有限公司 Band gap reference circuit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002806A1 (en) * 1981-02-03 1982-08-19 Inc Motorola Switched capacitor bandgap reference
EP0093644A2 (en) * 1982-04-26 1983-11-09 Nippon Telegraph And Telephone Corporation Switched capacitor circuit
EP0282725A1 (en) * 1987-03-06 1988-09-21 International Business Machines Corporation CMOS reference voltage generator device
JPS63310220A (en) * 1987-06-12 1988-12-19 Hitachi Ltd Electric circuit
US5059820A (en) * 1990-09-19 1991-10-22 Motorola, Inc. Switched capacitor bandgap reference circuit having a time multiplexed bipolar transistor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002806A1 (en) * 1981-02-03 1982-08-19 Inc Motorola Switched capacitor bandgap reference
EP0093644A2 (en) * 1982-04-26 1983-11-09 Nippon Telegraph And Telephone Corporation Switched capacitor circuit
EP0282725A1 (en) * 1987-03-06 1988-09-21 International Business Machines Corporation CMOS reference voltage generator device
JPS63310220A (en) * 1987-06-12 1988-12-19 Hitachi Ltd Electric circuit
US5059820A (en) * 1990-09-19 1991-10-22 Motorola, Inc. Switched capacitor bandgap reference circuit having a time multiplexed bipolar transistor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, Vol. E742 page 68, & JP 63 310 220 A *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107368140A (en) * 2017-09-01 2017-11-21 无锡泽太微电子有限公司 Reduce the band-gap reference circuit of offset voltage using switching capacity

Also Published As

Publication number Publication date
GB9526313D0 (en) 1996-02-21
GB2308684A (en) 1997-07-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20011222