JPS56168428A - Digital-to-analog converting circuit - Google Patents

Digital-to-analog converting circuit

Info

Publication number
JPS56168428A
JPS56168428A JP7075080A JP7075080A JPS56168428A JP S56168428 A JPS56168428 A JP S56168428A JP 7075080 A JP7075080 A JP 7075080A JP 7075080 A JP7075080 A JP 7075080A JP S56168428 A JPS56168428 A JP S56168428A
Authority
JP
Japan
Prior art keywords
terminal
electronic switch
voltage
switch
vref
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
JP7075080A
Other languages
Japanese (ja)
Inventor
Masahiro Fujita
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7075080A priority Critical patent/JPS56168428A/en
Publication of JPS56168428A publication Critical patent/JPS56168428A/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
    • H03M1/74—Simultaneous conversion
    • H03M1/78—Simultaneous conversion using ladder network
    • H03M1/785—Simultaneous conversion using ladder network using resistors, i.e. R-2R ladders

Landscapes

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

Abstract

PURPOSE:To increase the permissible error range of the resistance in use, by providing an electronic switch at a resistance for earth at the part where the lowest significant digit bit is formed and controlling the electronic switch with the counter pulse. CONSTITUTION:A terminal B00 of a switch control logical circuit is connected to the S00-th electronic switch controlling terminal. The other end of the electronic switch S00 is connected to a reference voltage input terminal 1 with another end earthed. When the switch S00 is earthed with a switch S01 set in a reference voltage supply mode, the voltage of a terminal P2 is set at 1/3.VREF. In the same way, the voltage of the terminal P2 is set at 1/3.VREF also in the contrary case. Then the voltage is set at 2/3.VREF when the reference voltage is applied to both switches S00 and S01. As a result, an error of voltage variation degree caused when being switched to an electronic switch on a bit can be suppressed by operating the bit having the minimum degree of variation.
JP7075080A 1980-05-29 1980-05-29 Digital-to-analog converting circuit Pending JPS56168428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7075080A JPS56168428A (en) 1980-05-29 1980-05-29 Digital-to-analog converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7075080A JPS56168428A (en) 1980-05-29 1980-05-29 Digital-to-analog converting circuit

Publications (1)

Publication Number Publication Date
JPS56168428A true JPS56168428A (en) 1981-12-24

Family

ID=13440491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7075080A Pending JPS56168428A (en) 1980-05-29 1980-05-29 Digital-to-analog converting circuit

Country Status (1)

Country Link
JP (1) JPS56168428A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043731A (en) * 1989-08-19 1991-08-27 Fujitsu Limited Digital-to-analog converter having a ladder type resistor network
US7532140B1 (en) 2003-05-15 2009-05-12 Linear Technology Corporation Gradient insensitive split-core digital to analog converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043731A (en) * 1989-08-19 1991-08-27 Fujitsu Limited Digital-to-analog converter having a ladder type resistor network
US7532140B1 (en) 2003-05-15 2009-05-12 Linear Technology Corporation Gradient insensitive split-core digital to analog converter

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