JPS55137723A - Digital analogue converter - Google Patents

Digital analogue converter

Info

Publication number
JPS55137723A
JPS55137723A JP4623379A JP4623379A JPS55137723A JP S55137723 A JPS55137723 A JP S55137723A JP 4623379 A JP4623379 A JP 4623379A JP 4623379 A JP4623379 A JP 4623379A JP S55137723 A JPS55137723 A JP S55137723A
Authority
JP
Japan
Prior art keywords
bit
output
resistance
generated
ladder
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
JP4623379A
Other languages
Japanese (ja)
Inventor
Tadashi Azegami
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin 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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP4623379A priority Critical patent/JPS55137723A/en
Publication of JPS55137723A publication Critical patent/JPS55137723A/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
    • H03M1/70—Automatic control for modifying converter range

Landscapes

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

Abstract

PURPOSE:To prevent a void part from being generated in an analogue output quantity, by setting a weight for a special bit to a value below the double of the weight for the preceding bit in a D/A converter consisting of a binary counter and a weighting circuit. CONSTITUTION:The pulse train signal to be counted is supplied to up-count input 1a or down/count input 1b selectively through switch 11 from pulse generator 6. Output ai (i=0, 1..., 10) of binary counter 1 expresses 0 or 1 bit output, and the output voltage appears in case of 1. One end of resistance 2R is ladder-connected to bit outputs a1-a5 and a7-a10, and resistance R is ladder-connected to the other ends of bit outputs. Bit a6 is selected as a special bit and is connected to output 20 through resistance 32R. The ratio among resistances R, 2R and 32R is set to 1:2:32. Thus, the output is lowered for every 64 counts and rises hesitatingly, so that no void part may be generated in the analogue output. The resistance value connected to bit a 6 is so selected that no void over the allowable range of the analogue output may be generated.
JP4623379A 1979-04-16 1979-04-16 Digital analogue converter Pending JPS55137723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4623379A JPS55137723A (en) 1979-04-16 1979-04-16 Digital analogue converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4623379A JPS55137723A (en) 1979-04-16 1979-04-16 Digital analogue converter

Publications (1)

Publication Number Publication Date
JPS55137723A true JPS55137723A (en) 1980-10-27

Family

ID=12741390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4623379A Pending JPS55137723A (en) 1979-04-16 1979-04-16 Digital analogue converter

Country Status (1)

Country Link
JP (1) JPS55137723A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57101420A (en) * 1980-12-16 1982-06-24 Fujitsu Ltd Overflow detection system for analog-to-digital converter
JPS5876241U (en) * 1981-11-17 1983-05-23 カシオ計算機株式会社 Digital-to-analog converter output error compensation circuit
JPS59231714A (en) * 1983-06-13 1984-12-26 Matsushita Electric Ind Co Ltd Magnetic head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57101420A (en) * 1980-12-16 1982-06-24 Fujitsu Ltd Overflow detection system for analog-to-digital converter
JPS6159570B2 (en) * 1980-12-16 1986-12-17 Fujitsu Ltd
JPS5876241U (en) * 1981-11-17 1983-05-23 カシオ計算機株式会社 Digital-to-analog converter output error compensation circuit
JPS59231714A (en) * 1983-06-13 1984-12-26 Matsushita Electric Ind Co Ltd Magnetic head

Similar Documents

Publication Publication Date Title
JPS5639629A (en) Digital-analog converter
JPS55137723A (en) Digital analogue converter
JPS57104320A (en) Digital-analogue converter
JPS5513583A (en) Analogue-digital converter circuit
JPS5624897A (en) Attenuation quantity set system
ES483795A1 (en) Electronic gear checker
JPS5312259A (en) Analog digital converter
JPS53107248A (en) Input-output coupled circuit of digital logic circuit
JPS5780826A (en) Waveform shaping circuit
JPS5534722A (en) Function generator
JPS5588424A (en) Digital-analog converter
JPS57106221A (en) Analogue-digital converter
JPS55166334A (en) Analog-digital converter
JPS6472230A (en) Bit inverter
JPS57212823A (en) Analog-to-digital converter
JPS544558A (en) Analog-to-digital converter
JPS51140626A (en) Digital indication device
JPS57162559A (en) Reducing system of transmission bit
JPS546439A (en) Digital filter circuit
JPS5792919A (en) Code converter
JPS5625819A (en) Digital coefficient circuit
JPS5636740A (en) Signal selecting circuit
JPS51112255A (en) Signal generator
JPS645229A (en) 4/5 nrzi code conversion system
JPS5725744A (en) Interleaving circuit