JPS556959A - Digital-analog converter - Google Patents

Digital-analog converter

Info

Publication number
JPS556959A
JPS556959A JP7945778A JP7945778A JPS556959A JP S556959 A JPS556959 A JP S556959A JP 7945778 A JP7945778 A JP 7945778A JP 7945778 A JP7945778 A JP 7945778A JP S556959 A JPS556959 A JP S556959A
Authority
JP
Japan
Prior art keywords
elements
circuit
resistance elements
input digital
switch
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
JP7945778A
Other languages
Japanese (ja)
Inventor
Shigeyuki Ohara
Susumu Nojima
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7945778A priority Critical patent/JPS556959A/en
Publication of JPS556959A publication Critical patent/JPS556959A/en
Pending legal-status Critical Current

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  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE: To obtain a digital-analog converter featuring a number of merits and effects by securing a vertical connection for several resistance elements having the switch elements connected in parallel and then supplying a constant amount of current to these resistance elements to turn on and off each switch.
CONSTITUTION: Resistance elements R1∼R4 having switch elements S1∼S4 connected in parallel are connected vertically to form a circuit. A constant amount of current is then supplied I to the circuit to turn on and off switch elements S1∼ S4 according to each bit information of the input digital data, thus the short control being given to the resistance elements. The resistance value of each element of R1∼ R4 is set previously to the weight corresponding to each bit of the input digital data. Thus, the analog voltage value equivalent to the input digital is obtained based on the voltage drop of the circuit.
COPYRIGHT: (C)1980,JPO&Japio
JP7945778A 1978-06-30 1978-06-30 Digital-analog converter Pending JPS556959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7945778A JPS556959A (en) 1978-06-30 1978-06-30 Digital-analog converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7945778A JPS556959A (en) 1978-06-30 1978-06-30 Digital-analog converter

Publications (1)

Publication Number Publication Date
JPS556959A true JPS556959A (en) 1980-01-18

Family

ID=13690402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7945778A Pending JPS556959A (en) 1978-06-30 1978-06-30 Digital-analog converter

Country Status (1)

Country Link
JP (1) JPS556959A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190417A (en) * 1981-05-18 1982-11-24 Matsushita Electric Ind Co Ltd Digital-to-analog converter
JPS59208913A (en) * 1983-05-10 1984-11-27 ベ−・ベ−・ツエ−・アクチエンゲゼルシヤフト・ブラウン・ボヴエリ・ウント・コンパニイ Switching amplifier for amplifying digital power
JP2012060618A (en) * 2010-09-13 2012-03-22 Renesas Electronics Corp Semiconductor integrated circuit device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190417A (en) * 1981-05-18 1982-11-24 Matsushita Electric Ind Co Ltd Digital-to-analog converter
JPS59208913A (en) * 1983-05-10 1984-11-27 ベ−・ベ−・ツエ−・アクチエンゲゼルシヤフト・ブラウン・ボヴエリ・ウント・コンパニイ Switching amplifier for amplifying digital power
JP2012060618A (en) * 2010-09-13 2012-03-22 Renesas Electronics Corp Semiconductor integrated circuit device

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