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JPS57207425A - Digital-to-analog converting circuit - Google Patents

Digital-to-analog converting circuit

Info

Publication number
JPS57207425A
JPS57207425A JP9231181A JP9231181A JPS57207425A JP S57207425 A JPS57207425 A JP S57207425A JP 9231181 A JP9231181 A JP 9231181A JP 9231181 A JP9231181 A JP 9231181A JP S57207425 A JPS57207425 A JP S57207425A
Authority
JP
Japan
Prior art keywords
converter
adder
digital
signal
analog
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
JP9231181A
Other languages
Japanese (ja)
Inventor
Tsutomu Noda
Takao Arai
Isao Akitake
Takaharu Noguchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9231181A priority Critical patent/JPS57207425A/en
Publication of JPS57207425A publication Critical patent/JPS57207425A/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
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters

Landscapes

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

Abstract

PURPOSE:To obtain an output analog signal with less distortion and dynamic range to the same degree as those of a D/A converter with good accuracy, by using a D/A converter less in the accuracy. CONSTITUTION:An input digital signal in n-bit from an input terminal 17 is applied to a digital adder 20, the adder 20 adds a constant digital code to the input digital signal and applies the digital signal after addition to a D/A converter 19. The converter 19 converts this digital signal into an analog signal and inputs the analog signal to an analog adder 24. If the adder 20 has an overflow exceeding n-bit, an overflow detector 21 turns on an analog switch 23. Thus, the adder 24 adds the output analog signal of the converter 19 with an analog signal corresponding to full-scale of the converter 19 and the result of addition is transmitted to an output terminal 18 as an output signal of a D/A conversion circuit 16.
JP9231181A 1981-06-17 1981-06-17 Digital-to-analog converting circuit Pending JPS57207425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9231181A JPS57207425A (en) 1981-06-17 1981-06-17 Digital-to-analog converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9231181A JPS57207425A (en) 1981-06-17 1981-06-17 Digital-to-analog converting circuit

Publications (1)

Publication Number Publication Date
JPS57207425A true JPS57207425A (en) 1982-12-20

Family

ID=14050848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9231181A Pending JPS57207425A (en) 1981-06-17 1981-06-17 Digital-to-analog converting circuit

Country Status (1)

Country Link
JP (1) JPS57207425A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02105633A (en) * 1988-10-14 1990-04-18 Kenwood Corp D/a converter
JPH05218863A (en) * 1992-09-14 1993-08-27 Teac Corp D/a conversion device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02105633A (en) * 1988-10-14 1990-04-18 Kenwood Corp D/a converter
JPH05218863A (en) * 1992-09-14 1993-08-27 Teac Corp D/a conversion device

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