JPS56147519A - Digital-to-analog converter - Google Patents
Digital-to-analog converterInfo
- Publication number
- JPS56147519A JPS56147519A JP5212080A JP5212080A JPS56147519A JP S56147519 A JPS56147519 A JP S56147519A JP 5212080 A JP5212080 A JP 5212080A JP 5212080 A JP5212080 A JP 5212080A JP S56147519 A JPS56147519 A JP S56147519A
- Authority
- JP
- Japan
- Prior art keywords
- time width
- conversion
- constant current
- circuit
- current
- 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
Classifications
-
- 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
- H03M1/68—Digital/analogue converters with conversions of different sensitivity, i.e. one conversion relating to the more significant digital bits and another conversion to the less significant bits
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE:To reduce the conversion time and make the cost low, by using the DA conversion circuit with binary weighting constant current for the conversion of low- order bit and using the DA conversion circuit with the time width conversion circuit for the high-order bit. CONSTITUTION:As to low-order bits D0-D6 among digital inputs D0-D11 where so much accuracy of the resistance value is not required, the current in proportion to 2<0>-2<6> is given to the capacitor C from the binary weighting constant current circuit I via the switch SW. Further, as to the upper bits D7-D11, the current is fed to the time width converting circuit TW which is converted into the signal of the time width Tx multiplied the unit time width TO by digital input. Further, S7 of the switch SW is controlled with the signal in this time width TX and thd capacitor C is charged with the constant current I7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5212080A JPS56147519A (en) | 1980-04-18 | 1980-04-18 | Digital-to-analog converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5212080A JPS56147519A (en) | 1980-04-18 | 1980-04-18 | Digital-to-analog converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56147519A true JPS56147519A (en) | 1981-11-16 |
Family
ID=12906008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5212080A Pending JPS56147519A (en) | 1980-04-18 | 1980-04-18 | Digital-to-analog converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56147519A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934727A (en) * | 1982-07-31 | 1984-02-25 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Accurate da converter |
| JPS59201519A (en) * | 1983-04-28 | 1984-11-15 | Sanyo Electric Co Ltd | Digital-analog converter |
| JPS6064525A (en) * | 1983-07-29 | 1985-04-13 | ア−ル・アラン・ベルチヤ− | A/d converting and d/a converting method and device |
| JPS60144025A (en) * | 1983-12-30 | 1985-07-30 | Nippon Gakki Seizo Kk | Digital-to-analog converter |
| WO2022195692A1 (en) * | 2021-03-16 | 2022-09-22 | 三菱電機株式会社 | Digital-to-analog converter |
-
1980
- 1980-04-18 JP JP5212080A patent/JPS56147519A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934727A (en) * | 1982-07-31 | 1984-02-25 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Accurate da converter |
| JPS59201519A (en) * | 1983-04-28 | 1984-11-15 | Sanyo Electric Co Ltd | Digital-analog converter |
| JPH0519330B2 (en) * | 1983-04-28 | 1993-03-16 | Sanyo Electric Co | |
| JPS6064525A (en) * | 1983-07-29 | 1985-04-13 | ア−ル・アラン・ベルチヤ− | A/d converting and d/a converting method and device |
| JPS60144025A (en) * | 1983-12-30 | 1985-07-30 | Nippon Gakki Seizo Kk | Digital-to-analog converter |
| WO2022195692A1 (en) * | 2021-03-16 | 2022-09-22 | 三菱電機株式会社 | Digital-to-analog converter |
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