JPS5488056A - Digital-analogue converter - Google Patents

Digital-analogue converter

Info

Publication number
JPS5488056A
JPS5488056A JP15592277A JP15592277A JPS5488056A JP S5488056 A JPS5488056 A JP S5488056A JP 15592277 A JP15592277 A JP 15592277A JP 15592277 A JP15592277 A JP 15592277A JP S5488056 A JPS5488056 A JP S5488056A
Authority
JP
Japan
Prior art keywords
collectors
emitters
trn
tro
bases
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
JP15592277A
Other languages
Japanese (ja)
Inventor
Shizuo Inohara
Sukeyuki Sato
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 JP15592277A priority Critical patent/JPS5488056A/en
Publication of JPS5488056A publication Critical patent/JPS5488056A/en
Pending legal-status Critical Current

Links

Landscapes

  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE: To stabilize operation with simplifying the circuit constitution of an A/D converter without providing a special reference constant current source by constituting a switch, which controls a current source and the flow of the current, by two transistors.
CONSTITUTION: A series connection where emitters or collectors of the first transistors TrO to Trn are connected to collectors or emitters of the second transistor Tr'O to Tr'n respectively through weight resistances RO to Rn is provided, and collectors or emitters of TrO to Trn are connected one another commonly, and this connection point is connected to one electrode Vcc of a driving power source through resistance R. Further, emitters or collectors of Tr'O to Tr'n are connected one another, and the connected point is connected to the other electrode (earth) of the driving power source, and bases of Tr'O to Tr'n are difined as input terminals aO to an for digital signals. Then, the DC voltage is applied to bases of TrO to Trn, and the connection point between collectors or emitters and resistance R is connected to output terminal A.
COPYRIGHT: (C)1979,JPO&Japio
JP15592277A 1977-12-24 1977-12-24 Digital-analogue converter Pending JPS5488056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15592277A JPS5488056A (en) 1977-12-24 1977-12-24 Digital-analogue converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15592277A JPS5488056A (en) 1977-12-24 1977-12-24 Digital-analogue converter

Publications (1)

Publication Number Publication Date
JPS5488056A true JPS5488056A (en) 1979-07-12

Family

ID=15616433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15592277A Pending JPS5488056A (en) 1977-12-24 1977-12-24 Digital-analogue converter

Country Status (1)

Country Link
JP (1) JPS5488056A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136806A (en) * 1983-01-26 1984-08-06 Mitsubishi Electric Corp Output device of variable voltage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136806A (en) * 1983-01-26 1984-08-06 Mitsubishi Electric Corp Output device of variable voltage

Similar Documents

Publication Publication Date Title
JPS56126315A (en) Oscillator
JPS55611A (en) Constant current circuit
JPS5785110A (en) Dc stabilized power supply circuit
JPS5563118A (en) Aft circuit
JPS5488056A (en) Digital-analogue converter
JPS54132150A (en) Sample holding amplifier
JPS5533221A (en) Current output circuit
JPS5597619A (en) Reference signal generating circuit
JPS56144610A (en) Converting circuit
JPS56108114A (en) Bipolar constant voltage circuit
JPS54108256A (en) Stabilized electric source circuit
JPS53119657A (en) Digital-to-analog converter
JPS5323291A (en) Voltage converter circuit
JPS57133707A (en) Bias circuit for power amplifier
JPS5597763A (en) Ternary pulse generating circuit
JPS5672592A (en) Phase control circuit
JPS5757028A (en) Driving circuit
JPS5694983A (en) Dc motor drive circuit
JPS5534505A (en) Signal detection circuit for integrated circuit
JPS5516563A (en) Stabilizer circuit for video output voltage
JPS54125080A (en) Voltage-current converter
JPS54117663A (en) Amplifier
JPS55123236A (en) Signal change-over circuit
JPS5735403A (en) Amplifier
JPS54125083A (en) Voltage-current converter