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WO2001005036A3 - Digital to analogue converting device - Google Patents

Digital to analogue converting device Download PDF

Info

Publication number
WO2001005036A3
WO2001005036A3 PCT/DK2000/000381 DK0000381W WO0105036A3 WO 2001005036 A3 WO2001005036 A3 WO 2001005036A3 DK 0000381 W DK0000381 W DK 0000381W WO 0105036 A3 WO0105036 A3 WO 0105036A3
Authority
WO
WIPO (PCT)
Prior art keywords
time
digital
output signal
dis
modulated output
Prior art date
Application number
PCT/DK2000/000381
Other languages
French (fr)
Other versions
WO2001005036A2 (en
Inventor
Torben Amtoft
Original Assignee
Telital R & D Denmark As
Torben Amtoft
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 Telital R & D Denmark As, Torben Amtoft filed Critical Telital R & D Denmark As
Priority to EP00943696A priority Critical patent/EP1208647A2/en
Priority to AU58065/00A priority patent/AU5806500A/en
Priority to PCT/DK2000/000381 priority patent/WO2001005036A2/en
Publication of WO2001005036A2 publication Critical patent/WO2001005036A2/en
Publication of WO2001005036A3 publication Critical patent/WO2001005036A3/en

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
    • H03M1/68—Digital/analogue converters with conversions of different sensitivity, i.e. one conversion relating to the more significant digital bits and another conversion to the less significant bits
    • 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
    • H03M1/662—Multiplexed conversion systems
    • 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
    • H03M1/82—Digital/analogue converters with intermediate conversion to time interval
    • H03M1/822—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation

Landscapes

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

Abstract

The invention relates to a digital to analogue converting device comprising a converting step establishing an upper (UL) and a lower voltage level (LL) in dependency of at least one digital input signal (DIS), said upper (UL) and lower voltage levels (LL) being time-modulated in dependency of at least said digital input signal (DIS) into a time-modulated output signal (TMOS), said time-modulated output signal having a period (T), said time-modulated output signal being fed through an output stage comprising at least one integrator (I), said integrator (I) being dimensioned in such a way that said time-modulated output signal is filtered and converted into an analogue representation of said digital input signal (DIS). According to the invention, a high-bit low-cost D/A-converter having small non-linearities has been obtained.
PCT/DK2000/000381 1999-07-09 2000-07-10 Digital to analogue converting device WO2001005036A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00943696A EP1208647A2 (en) 1999-07-09 2000-07-10 Digital to analogue converting device
AU58065/00A AU5806500A (en) 1999-07-09 2000-07-10 Digital to analogue converting device
PCT/DK2000/000381 WO2001005036A2 (en) 1999-07-09 2000-07-10 Digital to analogue converting device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK199901006A DK199901006A (en) 1999-07-09 1999-07-09 Digital to analog conversion device
DKPA199901006 1999-07-09
PCT/DK2000/000381 WO2001005036A2 (en) 1999-07-09 2000-07-10 Digital to analogue converting device

Publications (2)

Publication Number Publication Date
WO2001005036A2 WO2001005036A2 (en) 2001-01-18
WO2001005036A3 true WO2001005036A3 (en) 2008-01-10

Family

ID=8099954

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2000/000381 WO2001005036A2 (en) 1999-07-09 2000-07-10 Digital to analogue converting device

Country Status (5)

Country Link
EP (1) EP1208647A2 (en)
CN (1) CN1636322A (en)
AU (1) AU5806500A (en)
DK (1) DK199901006A (en)
WO (1) WO2001005036A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005030563B4 (en) 2005-06-30 2009-07-09 Infineon Technologies Ag Multichannel digital / analog converter arrangement
CN101242186B (en) * 2008-03-18 2010-10-06 苏州纳米技术与纳米仿生研究所 A programmable non linear digital/analog converter
JP6484131B2 (en) 2015-06-30 2019-03-13 株式会社堀場エステック Flow measuring device
CN106691432B (en) * 2016-10-19 2023-04-21 深圳市杰纳瑞医疗仪器股份有限公司 Induction type electrocardio measuring method and device
CN107846221A (en) * 2017-11-02 2018-03-27 深圳市太铭科技有限公司 A kind of method that combination PWM thoughts improve DAC precision
CN112671410A (en) * 2020-12-29 2021-04-16 珠海禅光科技有限公司 Method based on PWM analog DAC function, digital-to-analog conversion circuit and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247369A (en) * 1990-08-22 1992-02-26 Crystal Semiconductor Corp Dc calibration system for a digital-to-analog converter
US5235334A (en) * 1992-03-30 1993-08-10 Motorola, Inc. Digital-to-analog converter with a linear interpolator
US5248970A (en) * 1991-11-08 1993-09-28 Crystal Semiconductor Corp. Offset calibration of a dac using a calibrated adc
WO1999067885A1 (en) * 1998-06-25 1999-12-29 Siemens Aktiengesellschaft Device for quick d/a conversion of pwm signals
US6078277A (en) * 1998-07-02 2000-06-20 Motorola, Inc. Arrangement and method for producing a plurality of pulse width modulated signals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247369A (en) * 1990-08-22 1992-02-26 Crystal Semiconductor Corp Dc calibration system for a digital-to-analog converter
US5248970A (en) * 1991-11-08 1993-09-28 Crystal Semiconductor Corp. Offset calibration of a dac using a calibrated adc
US5235334A (en) * 1992-03-30 1993-08-10 Motorola, Inc. Digital-to-analog converter with a linear interpolator
WO1999067885A1 (en) * 1998-06-25 1999-12-29 Siemens Aktiengesellschaft Device for quick d/a conversion of pwm signals
US6078277A (en) * 1998-07-02 2000-06-20 Motorola, Inc. Arrangement and method for producing a plurality of pulse width modulated signals

Also Published As

Publication number Publication date
EP1208647A2 (en) 2002-05-29
WO2001005036A2 (en) 2001-01-18
DK199901006A (en) 2001-01-10
CN1636322A (en) 2005-07-06
AU5806500A (en) 2001-01-30

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