JPS57118431A - Controller of digital-to-analog converter - Google Patents

Controller of digital-to-analog converter

Info

Publication number
JPS57118431A
JPS57118431A JP333881A JP333881A JPS57118431A JP S57118431 A JPS57118431 A JP S57118431A JP 333881 A JP333881 A JP 333881A JP 333881 A JP333881 A JP 333881A JP S57118431 A JPS57118431 A JP S57118431A
Authority
JP
Japan
Prior art keywords
signal
code
converter
bits
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
JP333881A
Other languages
Japanese (ja)
Inventor
Satoshi Endo
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP333881A priority Critical patent/JPS57118431A/en
Publication of JPS57118431A publication Critical patent/JPS57118431A/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
    • H03M1/10—Calibration or testing

Landscapes

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

Abstract

PURPOSE:To realize the high accuracy with a low cost, by obtaining a code to be written into a memory device so as to be suited as much as possible to the ideal characteristics of a D/A converter of a desired number of bits for a D/A converter having a number of bits larger than the number of using bits. CONSTITUTION:A code generator 7 produces an input code of a D/A converter 8 with m bits to be controlled or an m-bit code G which is turned into the memory data of a memory device 6. The converter 8 produces an analog output signal A in accordance with the code G and supplies it to a comparator 9. The signal A is compared with an integral output signal B, and a comparison output signal E is obtained as a result of comparison. The signal E functions as the strobe signal of a latching circuit 5 which latches an n-bit count output D (m>n) when a coincidence is obtained between an analog output signal H and the signal B. A latch output F thus obtained is stored in the device 6 in the form of a memory address and the m-bit code is stored as a memory data respectively.
JP333881A 1981-01-14 1981-01-14 Controller of digital-to-analog converter Pending JPS57118431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP333881A JPS57118431A (en) 1981-01-14 1981-01-14 Controller of digital-to-analog converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP333881A JPS57118431A (en) 1981-01-14 1981-01-14 Controller of digital-to-analog converter

Publications (1)

Publication Number Publication Date
JPS57118431A true JPS57118431A (en) 1982-07-23

Family

ID=11554564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP333881A Pending JPS57118431A (en) 1981-01-14 1981-01-14 Controller of digital-to-analog converter

Country Status (1)

Country Link
JP (1) JPS57118431A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6315532A (en) * 1986-07-08 1988-01-22 Yokogawa Electric Corp D/a converter response test device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6315532A (en) * 1986-07-08 1988-01-22 Yokogawa Electric Corp D/a converter response test device
JPH0446490B2 (en) * 1986-07-08 1992-07-30 Yokogawa Electric Corp

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