FR2449367A1 - A=D signal converter - has weighted outputs of several low resolution converters summed to provide high resolution output - Google Patents

A=D signal converter - has weighted outputs of several low resolution converters summed to provide high resolution output

Info

Publication number
FR2449367A1
FR2449367A1 FR7904100A FR7904100A FR2449367A1 FR 2449367 A1 FR2449367 A1 FR 2449367A1 FR 7904100 A FR7904100 A FR 7904100A FR 7904100 A FR7904100 A FR 7904100A FR 2449367 A1 FR2449367 A1 FR 2449367A1
Authority
FR
France
Prior art keywords
value
digital
summed
high resolution
receives
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.)
Granted
Application number
FR7904100A
Other languages
French (fr)
Other versions
FR2449367B3 (en
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.)
MICROSYSTEMES SARL
Original Assignee
MICROSYSTEMES SARL
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 MICROSYSTEMES SARL filed Critical MICROSYSTEMES SARL
Priority to FR7904100A priority Critical patent/FR2449367A1/en
Publication of FR2449367A1 publication Critical patent/FR2449367A1/en
Application granted granted Critical
Publication of FR2449367B3 publication Critical patent/FR2449367B3/fr
Granted legal-status Critical Current

Links

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
    • H03M1/20—Increasing resolution using an n bit system to obtain n + m bits
    • H03M1/202—Increasing resolution using an n bit system to obtain n + m bits by interpolation
    • H03M1/203—Increasing resolution using an n bit system to obtain n + m bits by interpolation using an analogue interpolation circuit
    • H03M1/204—Increasing resolution using an n bit system to obtain n + m bits by interpolation using an analogue interpolation circuit in which one or more virtual intermediate reference signals are generated between adjacent original reference signals, e.g. by connecting pre-amplifier outputs to multiple comparators
    • H03M1/205—Increasing resolution using an n bit system to obtain n + m bits by interpolation using an analogue interpolation circuit in which one or more virtual intermediate reference signals are generated between adjacent original reference signals, e.g. by connecting pre-amplifier outputs to multiple comparators using resistor strings for redistribution of the original reference signals or signals derived therefrom

Landscapes

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

Abstract

The analogue-digital converter having high resolution receives an analogue value, and generates a digital representation of this value with a precision of 2-n. A digital integrator (11) receives p logic signals (12) and generates an analogue value (14). A circuit determining the integral value receives the analogue value for conversion (15), and the analogue value generated by the digital integrator (14), and produces logic signals (12) to be sent to the digital integrator (11). A digital correction system (16) receives the logic signals relating to the integral value (12) and generates logic signals relating to the true value (17). The digital integrator (11) comprises several low resolution (k bit) converters whose output values are summed with weighting to form a digital integrator with a high resolution of p bits (p>k).
FR7904100A 1979-02-15 1979-02-15 A=D signal converter - has weighted outputs of several low resolution converters summed to provide high resolution output Granted FR2449367A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7904100A FR2449367A1 (en) 1979-02-15 1979-02-15 A=D signal converter - has weighted outputs of several low resolution converters summed to provide high resolution output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904100A FR2449367A1 (en) 1979-02-15 1979-02-15 A=D signal converter - has weighted outputs of several low resolution converters summed to provide high resolution output

Publications (2)

Publication Number Publication Date
FR2449367A1 true FR2449367A1 (en) 1980-09-12
FR2449367B3 FR2449367B3 (en) 1981-12-18

Family

ID=9222123

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904100A Granted FR2449367A1 (en) 1979-02-15 1979-02-15 A=D signal converter - has weighted outputs of several low resolution converters summed to provide high resolution output

Country Status (1)

Country Link
FR (1) FR2449367A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079681A2 (en) * 1981-11-12 1983-05-25 Minnesota Mining And Manufacturing Company Bipolar digital to analog converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079681A2 (en) * 1981-11-12 1983-05-25 Minnesota Mining And Manufacturing Company Bipolar digital to analog converter
EP0079681A3 (en) * 1981-11-12 1986-03-19 Minnesota Mining And Manufacturing Company Bipolar digital to analog converter

Also Published As

Publication number Publication date
FR2449367B3 (en) 1981-12-18

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