JPS5725721A - Digital-to-analog converter - Google Patents

Digital-to-analog converter

Info

Publication number
JPS5725721A
JPS5725721A JP10072280A JP10072280A JPS5725721A JP S5725721 A JPS5725721 A JP S5725721A JP 10072280 A JP10072280 A JP 10072280A JP 10072280 A JP10072280 A JP 10072280A JP S5725721 A JPS5725721 A JP S5725721A
Authority
JP
Japan
Prior art keywords
bits
input terminal
output
produced
output signal
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.)
Pending
Application number
JP10072280A
Other languages
Japanese (ja)
Inventor
Osamu Kawaguchi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10072280A priority Critical patent/JPS5725721A/en
Publication of JPS5725721A publication Critical patent/JPS5725721A/en
Pending 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
    • H03M1/66—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

Landscapes

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

Abstract

PURPOSE:To reduce the settling during a high bit, by using two D/A converters having a small number of bits. CONSTITUTION:When the logical signal showing the prescribed value is applied to an input terminal 11 of a D/A converting circuit 12 of n1 bits, the output signal corresponding to the input signal is produced at an output terminal 13 to be applied to the input terminal at one side of an analog adder 15. Then the logical signal showing the prescribed value is applied to the other input terminal 21 of a D/A converting circuit 22 of n1 bits, and thus the output signal corresponding to the input signal is produced at an output terminal 23. This output signal is applied to the other input terminal of the adder 15 after the attenuation carried out through an attenuator 24. The ratio of attenuation of the attenuator 24 is set at a prescribed value according to the conversion code. As a result, the output signal corresponding to a D/A converter of n1+n2 bits can be produced at an output terminal 16 of the adder 15.
JP10072280A 1980-07-21 1980-07-21 Digital-to-analog converter Pending JPS5725721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10072280A JPS5725721A (en) 1980-07-21 1980-07-21 Digital-to-analog converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10072280A JPS5725721A (en) 1980-07-21 1980-07-21 Digital-to-analog converter

Publications (1)

Publication Number Publication Date
JPS5725721A true JPS5725721A (en) 1982-02-10

Family

ID=14281516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10072280A Pending JPS5725721A (en) 1980-07-21 1980-07-21 Digital-to-analog converter

Country Status (1)

Country Link
JP (1) JPS5725721A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58152355A (en) * 1982-03-05 1983-09-09 Jeol Ltd Lens current setting circuit
JPS60220867A (en) * 1984-04-17 1985-11-05 Fujitsu Ltd Voltage setting circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58152355A (en) * 1982-03-05 1983-09-09 Jeol Ltd Lens current setting circuit
JPH0372185B2 (en) * 1982-03-05 1991-11-15 Nippon Electron Optics Lab
JPS60220867A (en) * 1984-04-17 1985-11-05 Fujitsu Ltd Voltage setting circuit

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