JPS5455156A - Analog-to-digital converter - Google Patents
Analog-to-digital converterInfo
- Publication number
- JPS5455156A JPS5455156A JP12136777A JP12136777A JPS5455156A JP S5455156 A JPS5455156 A JP S5455156A JP 12136777 A JP12136777 A JP 12136777A JP 12136777 A JP12136777 A JP 12136777A JP S5455156 A JPS5455156 A JP S5455156A
- Authority
- JP
- Japan
- Prior art keywords
- current
- buffer amplifier
- source
- voltage
- limit buffer
- 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 make it possible to generate a highly precise refererence level by providing a current supply source which supplies a current from an upper-limit buffer amplifier to a lower-limit buffer amplifier via a voltage-dividing resistance.
CONSTITUTION: When change-over circuit 18 acquires constant-current source 17-1, switches S1 and S1' both turn ON at the same time by control lines from change-over circuit 18. As a result, a current which should be fed to voltage-dividing resistance 12 usually from upper-limit buffer amplifier 15-H toward lower-limit buffer amplifier 15-L is fed with the assitance of the lst current supply source 21 and the lst current absorption source 21'. Therefore, those current supply source 21 and current absorption source 21' feed a current to voltage-dividing resistance 12 as substitute for buffer amplifiers 15-H and 15-L which should have done it usually
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12136777A JPS5455156A (en) | 1977-10-12 | 1977-10-12 | Analog-to-digital converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12136777A JPS5455156A (en) | 1977-10-12 | 1977-10-12 | Analog-to-digital converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5455156A true JPS5455156A (en) | 1979-05-02 |
Family
ID=14809482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12136777A Pending JPS5455156A (en) | 1977-10-12 | 1977-10-12 | Analog-to-digital converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5455156A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS586330U (en) * | 1981-07-06 | 1983-01-17 | 岡谷電機産業株式会社 | illuminated switch |
JPS5871722A (en) * | 1981-10-26 | 1983-04-28 | Yokogawa Hewlett Packard Ltd | Digital-analog converter |
JPS5871725A (en) * | 1981-10-26 | 1983-04-28 | Yokogawa Hewlett Packard Ltd | Analog-digital converter |
JPS58104526A (en) * | 1981-10-09 | 1983-06-22 | アナログ・デバイセス・インコ−ポレ−テツド | Two-stage a/d converter |
-
1977
- 1977-10-12 JP JP12136777A patent/JPS5455156A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS586330U (en) * | 1981-07-06 | 1983-01-17 | 岡谷電機産業株式会社 | illuminated switch |
JPS58104526A (en) * | 1981-10-09 | 1983-06-22 | アナログ・デバイセス・インコ−ポレ−テツド | Two-stage a/d converter |
JPS5871722A (en) * | 1981-10-26 | 1983-04-28 | Yokogawa Hewlett Packard Ltd | Digital-analog converter |
JPS5871725A (en) * | 1981-10-26 | 1983-04-28 | Yokogawa Hewlett Packard Ltd | Analog-digital converter |
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