FR3121559B1 - Convertisseur analogique-numérique par approximations successives multicanaux - Google Patents

Convertisseur analogique-numérique par approximations successives multicanaux Download PDF

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Publication number
FR3121559B1
FR3121559B1 FR2103305A FR2103305A FR3121559B1 FR 3121559 B1 FR3121559 B1 FR 3121559B1 FR 2103305 A FR2103305 A FR 2103305A FR 2103305 A FR2103305 A FR 2103305A FR 3121559 B1 FR3121559 B1 FR 3121559B1
Authority
FR
France
Prior art keywords
analog
vin
successive
switch
digital converter
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.)
Active
Application number
FR2103305A
Other languages
English (en)
Other versions
FR3121559A1 (fr
Inventor
Nicolas Moeneclaey
Sri Ram Gupta
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.)
ST MICROELECTRONICS INT NV
STMicroelectronics Grenoble 2 SAS
Original Assignee
ST MICROELECTRONICS INT NV
STMicroelectronics Grenoble 2 SAS
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 ST MICROELECTRONICS INT NV, STMicroelectronics Grenoble 2 SAS filed Critical ST MICROELECTRONICS INT NV
Priority to FR2103305A priority Critical patent/FR3121559B1/fr
Priority to US17/707,113 priority patent/US11855654B2/en
Publication of FR3121559A1 publication Critical patent/FR3121559A1/fr
Application granted granted Critical
Publication of FR3121559B1 publication Critical patent/FR3121559B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/34—Analogue value compared with reference values
    • H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
    • H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
    • H03M1/462—Details of the control circuitry, e.g. of the successive approximation register
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/1205—Multiplexed conversion systems
    • H03M1/122—Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages
    • H03M1/1225—Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages using time-division multiplexing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/1205—Multiplexed conversion systems
    • H03M1/122—Shared using a single converter or a part thereof for multiple channels, e.g. a residue amplifier for multiple stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
    • H03M1/1245—Details of sampling arrangements or methods
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/34—Analogue value compared with reference values
    • H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
    • H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
    • H03M1/466—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter using switched capacitors
    • H03M1/468—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter using switched capacitors in which the input S/H circuit is merged with the feedback DAC array

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

Convertisseur analogique-numérique par approximations successives multicanaux La présente description concerne un convertisseur analogique-numérique par approximations successives (20) comprenant : - un convertisseur numérique-analogique (22) configuré pour recevoir un signal numérique (Dout), comprenant des premières unités de conversion (A1, A2, A3, A4, A5), chacune étant configurée pour échantillonner un signal analogique (VIN_1, VIN_2, VIN_3, VIN_4, VIN_5) par l'intermédiaire d'un premier commutateur et pour fournir un premier niveau de tension (Vn1) par l'intermédiaire d'un deuxième commutateur (SWAO1, SWAO2, SWAO3, SWAO4, SWAO5), ledit convertisseur comprenant en outre une seule deuxième unité de conversion (B) configurée pour fournir un deuxième niveau de tension (Vn2), chaque première unité de conversion comprenant un premier réseau de condensateurs (18A) et un premier réseau de commutateurs (19A) commandés par le signal numérique, la deuxième unité de conversion comprenant un deuxième réseau de condensateurs (18B) et un deuxième réseau de commutateurs (19B) ; et - un circuit de commande (13) configuré pour fermer simultanément les premiers commutateurs et pour fermer successivement les deuxièmes commutateurs pour convertir chaque signal analogique échantillonné. Figure pour l'abrégé : Fig. 3
FR2103305A 2021-03-31 2021-03-31 Convertisseur analogique-numérique par approximations successives multicanaux Active FR3121559B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2103305A FR3121559B1 (fr) 2021-03-31 2021-03-31 Convertisseur analogique-numérique par approximations successives multicanaux
US17/707,113 US11855654B2 (en) 2021-03-31 2022-03-29 Multichannel successive approximation analog-to-digital converter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2103305 2021-03-31
FR2103305A FR3121559B1 (fr) 2021-03-31 2021-03-31 Convertisseur analogique-numérique par approximations successives multicanaux

Publications (2)

Publication Number Publication Date
FR3121559A1 FR3121559A1 (fr) 2022-10-07
FR3121559B1 true FR3121559B1 (fr) 2024-05-24

Family

ID=77710789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2103305A Active FR3121559B1 (fr) 2021-03-31 2021-03-31 Convertisseur analogique-numérique par approximations successives multicanaux

Country Status (2)

Country Link
US (1) US11855654B2 (fr)
FR (1) FR3121559B1 (fr)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5691722A (en) * 1996-05-21 1997-11-25 Wang; Wenwei Direct-digitizing, self stabilizing analog to digital converter
US7456768B2 (en) * 2006-04-07 2008-11-25 Washington State University Analog-to-digital converters based on an interleaving architecture and associated methods
WO2008142486A1 (fr) * 2007-05-18 2008-11-27 Nokia Corporation Convertisseur analogique/numérique
IT1395248B1 (it) * 2009-03-18 2012-09-05 St Microelectronics Rousset Comparatore con compensazione di offset, in particolare per convertitori analogico-digitali
US8159382B2 (en) * 2009-11-27 2012-04-17 Texas Instruments Incorporated Low power converter and shutdown SAR ADC architecture
US8350738B2 (en) * 2011-01-20 2013-01-08 International Business Machines Corporation Track and hold amplifiers and digital calibration for analog-to-digital converters
US8981985B2 (en) * 2011-09-06 2015-03-17 National University Of Singapore Analog-to-digital converter for a multi-channel signal acquisition system
US8736480B1 (en) * 2013-01-11 2014-05-27 Intel Corporation Successive approximation analog-to-digital conversion architectural arrangement for receivers
US8947283B2 (en) * 2013-06-12 2015-02-03 University Of Macau Sampling front-end for analog to digital converter
US8884801B1 (en) * 2013-11-21 2014-11-11 Inphi Corporation High-speed analog-to-digital conversion system with flash assisted parallel SAR architecture
JP2017192099A (ja) * 2016-04-15 2017-10-19 ローム株式会社 逐次比較型ａ／ｄコンバータ
US10454488B1 (en) * 2018-05-31 2019-10-22 Analog Devices Global Unlimited Company Variable speed comparator
US11570392B2 (en) * 2019-07-30 2023-01-31 Senseics Corporation Scalable readout integrated circuit architecture with per-pixel automatic programmable gain for high dynamic range imaging
US11018684B1 (en) * 2020-08-27 2021-05-25 Nxp B.V. Hybrid pipeline analog-to-digital converter
KR20220032682A (ko) * 2020-09-08 2022-03-15 삼성전자주식회사 아날로그 디지털 변환기 및 아날로그 디지털 변환기의 아날로그 디지털 변환 방법

Also Published As

Publication number Publication date
US11855654B2 (en) 2023-12-26
FR3121559A1 (fr) 2022-10-07
US20220321140A1 (en) 2022-10-06

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