BR9713948A - Processo para converção de um sinal de entrada digital de um predeterminado número inteiro, n, de bits b (i) em sinal de saìda analógico, conversor digital-para-analógico, e, estágio direcionado para um conversor digital-para-analógico - Google Patents

Processo para converção de um sinal de entrada digital de um predeterminado número inteiro, n, de bits b (i) em sinal de saìda analógico, conversor digital-para-analógico, e, estágio direcionado para um conversor digital-para-analógico

Info

Publication number
BR9713948A
BR9713948A BR9713948A BR9713948A BR9713948A BR 9713948 A BR9713948 A BR 9713948A BR 9713948 A BR9713948 A BR 9713948A BR 9713948 A BR9713948 A BR 9713948A BR 9713948 A BR9713948 A BR 9713948A
Authority
BR
Brazil
Prior art keywords
digital
analog converter
algorithm
analog
gray
Prior art date
Application number
BR9713948A
Other languages
English (en)
Inventor
Svante Signell
Nianxiong Tan
Original Assignee
Ericsson Telefon Ab L M
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
Priority claimed from SE9604617A external-priority patent/SE9604617L/
Priority claimed from SE9604616A external-priority patent/SE9604616L/xx
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9713948A publication Critical patent/BR9713948A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/667—Recirculation type
    • 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
    • H03M1/0678—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 using additional components or elements, e.g. dummy components
    • H03M1/068—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 using additional components or elements, e.g. dummy components the original and additional components or elements being complementary to each other, e.g. CMOS
    • H03M1/0682—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 using additional components or elements, e.g. dummy components the original and additional components or elements being complementary to each other, e.g. CMOS using a differential network structure, i.e. symmetrical with respect to ground
    • 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
    • H03M1/40—Analogue value compared with reference values sequentially only, e.g. successive approximation type recirculation type
    • H03M1/403—Analogue value compared with reference values sequentially only, e.g. successive approximation type recirculation type using switched capacitors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/72—Sequential conversion in series-connected stages

Landscapes

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

Abstract

D/A de um sinal de entrada digital codificado de Gray é realizada de acordo com um inventivo recursivo algoritmo de conversão de código-para-analógico de Gray. De acordo com o recursivo algoritmo, os bits de código de Gray da entrada digital são sucessivamente aplicados nas recursões do algoritmo, ualização de um sinal intermediário. Em cada recursão, o sinal intermediário é seletivamente invertido na dependência do particular bit de código de Gr do sinal intermediário é uma inerente propriedade do algoritmo de código-para-analógico de Gray, e é um fator chave para reduzir a acumulação de erros em uma conversão D/A. Em uma arquitetura de conversor D/A baseada no algoritmo, a acumulação de erros de desvioserá baixa,. Além disso, o fato que a inversão de sinal é controlada digitalmente permite implementações de alta precisão, ademais aperfeiçoando o desempenho do conversor D/A.
BR9713948A 1996-12-16 1997-12-05 Processo para converção de um sinal de entrada digital de um predeterminado número inteiro, n, de bits b (i) em sinal de saìda analógico, conversor digital-para-analógico, e, estágio direcionado para um conversor digital-para-analógico BR9713948A (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9604617A SE9604617L (sv) 1996-12-16 1996-12-16 Cyklisk analog-digitalomvandling
SE9604616A SE9604616L (sv) 1996-12-16 1996-12-16 Analog-digitalomvandling av pipelinetyp
SE9701812A SE9701812L (sv) 1996-12-16 1997-05-15 Omvandlare
PCT/SE1997/002039 WO1998027656A2 (en) 1996-12-16 1997-12-05 Digital-to-analog conversion

Publications (1)

Publication Number Publication Date
BR9713948A true BR9713948A (pt) 2000-03-21

Family

ID=27355850

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9713948A BR9713948A (pt) 1996-12-16 1997-12-05 Processo para converção de um sinal de entrada digital de um predeterminado número inteiro, n, de bits b (i) em sinal de saìda analógico, conversor digital-para-analógico, e, estágio direcionado para um conversor digital-para-analógico

Country Status (11)

Country Link
US (1) US6078276A (pt)
EP (1) EP1008236B1 (pt)
JP (1) JP3844510B2 (pt)
CN (1) CN1169301C (pt)
AU (1) AU723554B2 (pt)
BR (1) BR9713948A (pt)
CA (1) CA2275613A1 (pt)
DE (1) DE69727981T2 (pt)
SE (1) SE9701812L (pt)
TW (1) TW385594B (pt)
WO (1) WO1998027656A2 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6870495B1 (en) * 2004-02-18 2005-03-22 Micron Technology, Inc. Double throughput analog to digital converter
CN100384088C (zh) * 2004-12-21 2008-04-23 北京中星微电子有限公司 一种数模信号转换的方法及数模信号转换装置
JP2006243232A (ja) * 2005-03-02 2006-09-14 Seiko Epson Corp 基準電圧発生回路、表示ドライバ、電気光学装置及び電子機器
JP4810840B2 (ja) * 2005-03-02 2011-11-09 セイコーエプソン株式会社 基準電圧発生回路、表示ドライバ、電気光学装置及び電子機器
US7746261B2 (en) * 2007-08-01 2010-06-29 Denso Corporation Variable gain amplifier and D/A converter
US7948410B2 (en) * 2009-07-20 2011-05-24 Texas Instruments Incorporated Multibit recyclic pipelined ADC architecture
JP6762733B2 (ja) * 2016-03-01 2020-09-30 東芝情報システム株式会社 Ｄ／ａ変換装置及びｄ／ａ変換方法
US11536818B2 (en) 2019-06-25 2022-12-27 Bfly Operations, Inc. Methods and apparatuses for processing ultrasound signals

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3701152A (en) * 1970-07-20 1972-10-24 Us Navy Bipolar sample and hold circuit
DE3400061A1 (de) * 1984-01-03 1985-07-25 Günter Dipl.-Phys. 3303 Vechelde Kramer Digital-analog-wandler
DE3413456A1 (de) * 1984-04-10 1985-10-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digital/analog-umsetzer
US4596979A (en) * 1984-05-17 1986-06-24 Norwood Sisson Fast response digital-to-analog converter
US4591826A (en) * 1984-06-14 1986-05-27 Harris Corporation Gray code DAC ladder
US5180932A (en) * 1990-03-15 1993-01-19 Bengel David W Current mode multiplexed sample and hold circuit
US5404143A (en) * 1991-06-12 1995-04-04 Intellectual Property Development Associates Of Connecticut, Inc. Network swappers and circuits constructed from same
US5424740A (en) * 1993-08-11 1995-06-13 Holtek Microelectronics Inc. Digital-to-analog converter with a Johnson code generator
US5798747A (en) * 1995-11-17 1998-08-25 National Semiconductor Corporation Methods and apparatuses for high-speed video sample and hold amplification for analog flat panel display
KR0170720B1 (ko) * 1995-12-29 1999-03-30 김광호 디지탈/아날로그 변환기 인터페이스 장치

Also Published As

Publication number Publication date
SE9701812L (sv) 1998-06-17
AU723554B2 (en) 2000-08-31
JP2001506440A (ja) 2001-05-15
SE9701812D0 (sv) 1997-05-15
US6078276A (en) 2000-06-20
CN1169301C (zh) 2004-09-29
WO1998027656A3 (en) 1998-08-06
JP3844510B2 (ja) 2006-11-15
AU5422898A (en) 1998-07-15
DE69727981D1 (de) 2004-04-08
EP1008236B1 (en) 2004-03-03
DE69727981T2 (de) 2005-01-05
TW385594B (en) 2000-03-21
CA2275613A1 (en) 1998-06-25
EP1008236A2 (en) 2000-06-14
CN1242116A (zh) 2000-01-19
WO1998027656A2 (en) 1998-06-25

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Legal Events

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B08F Application fees: application dismissed [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1868 DE 24/10/2006.