JPS57201327A - Digital-to-analog converter - Google Patents
Digital-to-analog converterInfo
- Publication number
- JPS57201327A JPS57201327A JP8533981A JP8533981A JPS57201327A JP S57201327 A JPS57201327 A JP S57201327A JP 8533981 A JP8533981 A JP 8533981A JP 8533981 A JP8533981 A JP 8533981A JP S57201327 A JPS57201327 A JP S57201327A
- Authority
- JP
- Japan
- Prior art keywords
- bits
- digital
- memory
- analog
- digital data
- 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
- 238000006243 chemical reaction Methods 0.000 abstract 1
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 realize a highly accurate digital-to-analog (DA) convertion economically by dividing a digital data into upper bits and lower bits to convert into analog signals respectively and reading out the conversion error data of the upper bits from a memory to compose the whole data. CONSTITUTION:Upper 8 bits and lower 8 bits of a digital data consisting of 16 bits are converted into analog signals by DA converters 1, 3 respectively. The upper 8 bits are inputted to a memory 4 and a digital data for correcting an error of the DA converter 1, which has been previously stored in the memory 4, is read out and inputted to a DA converter 2 to output an analog signal. Outputs of the DA converters 1, 2, 3 are weighted by a weighting circuit 6 and composed, outputting a DA converted analog signal with high accuracy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8533981A JPS57201327A (en) | 1981-06-03 | 1981-06-03 | Digital-to-analog converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8533981A JPS57201327A (en) | 1981-06-03 | 1981-06-03 | Digital-to-analog converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57201327A true JPS57201327A (en) | 1982-12-09 |
Family
ID=13855883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8533981A Pending JPS57201327A (en) | 1981-06-03 | 1981-06-03 | Digital-to-analog converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57201327A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60101838U (en) * | 1983-12-19 | 1985-07-11 | 株式会社アドバンテスト | High precision DA converter |
| JPH043623A (en) * | 1990-04-20 | 1992-01-08 | Nakamichi Corp | Digital/analog converter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53132967A (en) * | 1977-04-26 | 1978-11-20 | Nippon Telegr & Teleph Corp <Ntt> | Da converter |
-
1981
- 1981-06-03 JP JP8533981A patent/JPS57201327A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53132967A (en) * | 1977-04-26 | 1978-11-20 | Nippon Telegr & Teleph Corp <Ntt> | Da converter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60101838U (en) * | 1983-12-19 | 1985-07-11 | 株式会社アドバンテスト | High precision DA converter |
| JPH043623A (en) * | 1990-04-20 | 1992-01-08 | Nakamichi Corp | Digital/analog converter |
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