JPS5488056A - Digital-analogue converter - Google Patents
Digital-analogue converterInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59136806A (en) * | 1983-01-26 | 1984-08-06 | Mitsubishi Electric Corp | Output device of variable voltage |
-
1977
- 1977-12-24 JP JP15592277A patent/JPS5488056A/en active Pending
Cited By (1)
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 |