WO2009019902A1 - アナログデジタル変換セル及びアナログデジタル変換器 - Google Patents

アナログデジタル変換セル及びアナログデジタル変換器 Download PDF

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Publication number
WO2009019902A1
WO2009019902A1 PCT/JP2008/053430 JP2008053430W WO2009019902A1 WO 2009019902 A1 WO2009019902 A1 WO 2009019902A1 JP 2008053430 W JP2008053430 W JP 2008053430W WO 2009019902 A1 WO2009019902 A1 WO 2009019902A1
Authority
WO
WIPO (PCT)
Prior art keywords
analog
digital
digital code
input signals
conversion cell
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.)
Ceased
Application number
PCT/JP2008/053430
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English (en)
French (fr)
Inventor
Kunihiko Gotoh
Takeshi Takayama
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2009526353A priority Critical patent/JP4756095B2/ja
Publication of WO2009019902A1 publication Critical patent/WO2009019902A1/ja
Priority to US12/698,853 priority patent/US7986258B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
    • H03M1/0675—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy
    • H03M1/069—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy by range overlap between successive stages or steps
    • H03M1/0695—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence using redundancy by range overlap between successive stages or steps using less than the maximum number of output states per stage or step, e.g. 1.5 per stage or less than 1.5 bit per stage type
    • 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
    • H03M1/44—Sequential comparisons in series-connected stages with change in value of analogue signal

Landscapes

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

Abstract

　Ｎビットアナログデジタル変換（Ｎは自然数）を行うアナログデジタル変換セルであって、複数の基準電圧を基にアナログ入力信号ＶＩを比較し、前記アナログ入力信号ＶＩの大きさに応じて２Ｎ＋１以上かつ２Ｎ＋１－１以下であるＱ値の第１のデジタルコードＤＡを出力する比較回路（２０２）と、定数ＫＡが１＜ＫＡ＜２の条件を満たす小数であり、ＤＢ０が定数であり、前記第１のデジタルコードＤＡを基にＤＢ＝ＤＡ×ＫＡ＋ＤＢ０で表されるＱ値の第２のデジタルコードＤＢを出力する第１のロジック演算回路（２０３）と、Ａ及びＶＲが定数であり、前記第１のデジタルコードＤＡ及び前記アナログ入力信号ＶＩを基に、ＶＯ＝Ａ×（ＶＩ－ＤＡ×ＫＡ×（ＶＲ／Ａ））で表されるアナログ出力信号ＶＯを出力するアナログ演算回路（２０１）とを有することを特徴とするアナログデジタル変換セルが提供される。
PCT/JP2008/053430 2007-08-03 2008-02-27 アナログデジタル変換セル及びアナログデジタル変換器 Ceased WO2009019902A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009526353A JP4756095B2 (ja) 2007-08-03 2008-02-27 アナログデジタル変換セル及びアナログデジタル変換器
US12/698,853 US7986258B2 (en) 2007-08-03 2010-02-02 Analog-digital conversion cell and analog-digital converter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPPCT/JP2007/065240 2007-08-03
PCT/JP2007/065240 WO2009019744A1 (ja) 2007-08-03 2007-08-03 アナログデジタル変換セル及びアナログデジタル変換器

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/698,853 Continuation-In-Part US7986258B2 (en) 2007-08-03 2010-02-02 Analog-digital conversion cell and analog-digital converter

Publications (1)

Publication Number Publication Date
WO2009019902A1 true WO2009019902A1 (ja) 2009-02-12

Family

ID=40340992

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP2007/065240 Ceased WO2009019744A1 (ja) 2007-08-03 2007-08-03 アナログデジタル変換セル及びアナログデジタル変換器
PCT/JP2008/053430 Ceased WO2009019902A1 (ja) 2007-08-03 2008-02-27 アナログデジタル変換セル及びアナログデジタル変換器

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/065240 Ceased WO2009019744A1 (ja) 2007-08-03 2007-08-03 アナログデジタル変換セル及びアナログデジタル変換器

Country Status (2)

Country Link
US (1) US7986258B2 (ja)
WO (2) WO2009019744A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110224701B (zh) * 2019-07-08 2024-02-09 湖南国科微电子股份有限公司 一种流水线结构adc
CN114944843B (zh) * 2022-05-16 2026-03-06 苏州芈图光电技术有限公司 一种基于adc电路的信号数字化方法和装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004343292A (ja) * 2003-05-14 2004-12-02 Oki Electric Ind Co Ltd パイプライン型アナログ・ディジタル変換器
JP2006074549A (ja) * 2004-09-03 2006-03-16 Olympus Corp パイプライン型ａ／ｄ変換器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6784824B1 (en) * 2002-08-29 2004-08-31 Xilinx, Inc. Analog-to-digital converter which is substantially independent of capacitor mismatch
US7002504B2 (en) * 2003-05-05 2006-02-21 Maxim Integrated Products, Inc. Dynamic element matching in high speed data converters
KR100560945B1 (ko) * 2003-11-26 2006-03-14 매그나칩 반도체 유한회사 온-칩 기준전압 발생장치를 구비하는 반도체 칩

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004343292A (ja) * 2003-05-14 2004-12-02 Oki Electric Ind Co Ltd パイプライン型アナログ・ディジタル変換器
JP2006074549A (ja) * 2004-09-03 2006-03-16 Olympus Corp パイプライン型ａ／ｄ変換器

Also Published As

Publication number Publication date
US20100134337A1 (en) 2010-06-03
US7986258B2 (en) 2011-07-26
WO2009019744A1 (ja) 2009-02-12

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