JPS54139452A - Converter to be used for ad-da and corresponding conversion system - Google Patents
Converter to be used for ad-da and corresponding conversion systemInfo
- Publication number
- JPS54139452A JPS54139452A JP4669778A JP4669778A JPS54139452A JP S54139452 A JPS54139452 A JP S54139452A JP 4669778 A JP4669778 A JP 4669778A JP 4669778 A JP4669778 A JP 4669778A JP S54139452 A JPS54139452 A JP S54139452A
- Authority
- JP
- Japan
- Prior art keywords
- converter
- converters
- linear
- bits
- given
- 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.)
- Granted
Links
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE: To realize such constitution for the circuit as to fill the companding side for the AD and DA converters with use of the linear DA converters of 5 and 8 bits plus 6 and 8 bits respectively, and thus to reduce of the element accuracy for these converters.
CONSTITUTION: AD converter (a) featuring the polygonal line approximation property of μ=225 companding side 15 is formed with use of linear DA converter 11 and 12 of 5 and 8 bits each, DA converter (b) featuring the similar property is formed with linear DA converter 26 and 27 of 6 and 8 bits each. The positive or negative polarity is decided 2 and 32 for input analog and digital signals 3 and 23, and then the polygonal line section decision is given to the 1st∼8th sections via the 8-bit linear DA converter. And both encoding decoding are given to each of the 1st∼5th sections via converters 11 and 26 to which the external reference voltage is supplied from converter 12 and 27; and the encoding and decoding are given to each of the 6th∼8th sections via converter 12 and 27 respectively.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4669778A JPS6013579B2 (en) | 1978-04-21 | 1978-04-21 | Companding AD converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4669778A JPS6013579B2 (en) | 1978-04-21 | 1978-04-21 | Companding AD converter |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13824984A Division JPS6062728A (en) | 1984-07-04 | 1984-07-04 | Companding digital-analog converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54139452A true JPS54139452A (en) | 1979-10-29 |
JPS6013579B2 JPS6013579B2 (en) | 1985-04-08 |
Family
ID=12754558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4669778A Expired JPS6013579B2 (en) | 1978-04-21 | 1978-04-21 | Companding AD converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6013579B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6364412A (en) * | 1986-09-02 | 1988-03-22 | シーメンス、アクチエンゲゼルシヤフト | Analog-digital converter |
-
1978
- 1978-04-21 JP JP4669778A patent/JPS6013579B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6364412A (en) * | 1986-09-02 | 1988-03-22 | シーメンス、アクチエンゲゼルシヤフト | Analog-digital converter |
Also Published As
Publication number | Publication date |
---|---|
JPS6013579B2 (en) | 1985-04-08 |
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