JPS56115027A - Signal converter - Google Patents

Signal converter

Info

Publication number
JPS56115027A
JPS56115027A JP1763080A JP1763080A JPS56115027A JP S56115027 A JPS56115027 A JP S56115027A JP 1763080 A JP1763080 A JP 1763080A JP 1763080 A JP1763080 A JP 1763080A JP S56115027 A JPS56115027 A JP S56115027A
Authority
JP
Japan
Prior art keywords
circuit
amplifier
input terminal
output
delivers
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
JP1763080A
Other languages
Japanese (ja)
Inventor
Kenji Shiraki
Anaichi Haruyama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1763080A priority Critical patent/JPS56115027A/en
Publication of JPS56115027A publication Critical patent/JPS56115027A/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
    • H03M1/02—Reversible analogue/digital converters

Landscapes

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

Abstract

PURPOSE:To realize both the A/D and D/A conversions by means of the same IC, by using an input register, a binary weighting circuit, a differential amplifier plus a circuit connection between the output terminal of the differential amplifier and the 2nd input terminal. CONSTITUTION:The serial digital data is put into the serial data input terminal 7 and then sent successively to the shift register 1. Each bit output of the register 1 drives the switch of the switch circuit 2 corresponding to the bit output. The binary weighting circuit 3 delivers the binary weighted voltage that is generated from the circuit 2. This voltage is applied to the positive input of the differential amplifier 4. An external connection is given between the negative analog input terminal 5 of the amplifier 4 and the analog input terminal 6, and thus the amplifier 4 delivers the output voltage of the circuit 3 directly to the common output point of the terminals 5 and 6. When the analog signal is supplied to the terminal 5, the amplifier 4 compares the scale between the analog signal and the output voltage of the circuit 3 and then delivers the result of comparison in the form of a digital data.
JP1763080A 1980-02-15 1980-02-15 Signal converter Pending JPS56115027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1763080A JPS56115027A (en) 1980-02-15 1980-02-15 Signal converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1763080A JPS56115027A (en) 1980-02-15 1980-02-15 Signal converter

Publications (1)

Publication Number Publication Date
JPS56115027A true JPS56115027A (en) 1981-09-10

Family

ID=11949174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1763080A Pending JPS56115027A (en) 1980-02-15 1980-02-15 Signal converter

Country Status (1)

Country Link
JP (1) JPS56115027A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01289319A (en) * 1988-05-17 1989-11-21 Fujitsu Ltd Current source circuit and digital/analog converter using it

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917900A (en) * 1972-06-08 1974-02-16
JPS5132448A (en) * 1974-09-13 1976-03-19 Kobe Steel Ltd Aruminiumu mataha aruminiumugokinnotatemukijidoyosetsuhoho

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917900A (en) * 1972-06-08 1974-02-16
JPS5132448A (en) * 1974-09-13 1976-03-19 Kobe Steel Ltd Aruminiumu mataha aruminiumugokinnotatemukijidoyosetsuhoho

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01289319A (en) * 1988-05-17 1989-11-21 Fujitsu Ltd Current source circuit and digital/analog converter using it

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