GB2005503A - Current mode switch - Google Patents
Current mode switchInfo
- Publication number
- GB2005503A GB2005503A GB7829389A GB7829389A GB2005503A GB 2005503 A GB2005503 A GB 2005503A GB 7829389 A GB7829389 A GB 7829389A GB 7829389 A GB7829389 A GB 7829389A GB 2005503 A GB2005503 A GB 2005503A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pair
- npn transistors
- coupled
- reference voltage
- mode 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
- H03K17/603—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors with coupled emitters
-
- 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
Landscapes
- Analogue/Digital Conversion (AREA)
- Electronic Switches (AREA)
Abstract
A current mode switch for incorporation in a digital-to-analog converter includes a logic signal input means, a reference voltage source, a constant current source, a first pair of NPN transistors whose emitters are coupled together and to said constant current source and whose bases are coupled to said signal input means, a second pair of NPN transistors whose emitters are coupled together and whose bases are connected, respectively, to the collectors of said first pair of NPN transistors, a pair of matched resistors coupled, respectively, between one polarity of said reference voltage source and the bases of said second pair of NPN transistors, and a current source resistor coupled between said emitters of said second pair of NPN transistors and the opposite polarity of said reference voltage source. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83851577A | 1977-10-03 | 1977-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2005503A true GB2005503A (en) | 1979-04-19 |
Family
ID=25277288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7829389A Withdrawn GB2005503A (en) | 1977-10-03 | 1978-07-11 | Current mode switch |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5455158A (en) |
DE (1) | DE2842144A1 (en) |
GB (1) | GB2005503A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0084847A2 (en) * | 1982-01-21 | 1983-08-03 | Hewlett-Packard Company | A bit cell for providing a weighted current |
EP0222999A2 (en) * | 1985-11-20 | 1987-05-27 | Hewlett-Packard Company | Digital-to-Analog converter with output sampler |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57193980A (en) * | 1981-05-25 | 1982-11-29 | Fuji Electric Co Ltd | Phase control circuit for multiple connection type inverter |
JPS58114623A (en) * | 1981-12-24 | 1983-07-08 | レイセオン カンパニ− | Digital-to-analog converter circuit |
JPS60153034U (en) * | 1984-03-22 | 1985-10-12 | 横河電機株式会社 | D/A converter |
GB2229056A (en) * | 1989-03-10 | 1990-09-12 | Philips Electronic Associated | Differential amplifiers |
-
1978
- 1978-07-11 GB GB7829389A patent/GB2005503A/en not_active Withdrawn
- 1978-08-16 JP JP9917178A patent/JPS5455158A/en active Pending
- 1978-09-28 DE DE19782842144 patent/DE2842144A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0084847A2 (en) * | 1982-01-21 | 1983-08-03 | Hewlett-Packard Company | A bit cell for providing a weighted current |
EP0084847A3 (en) * | 1982-01-21 | 1986-07-09 | Hewlett-Packard Company | A bit cell for providing a weighted current |
EP0222999A2 (en) * | 1985-11-20 | 1987-05-27 | Hewlett-Packard Company | Digital-to-Analog converter with output sampler |
EP0222999A3 (en) * | 1985-11-20 | 1989-12-13 | Hewlett-Packard Company | Digital-to-analog converter with output sampler |
Also Published As
Publication number | Publication date |
---|---|
DE2842144A1 (en) | 1979-04-12 |
JPS5455158A (en) | 1979-05-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |