FR2358785A1 - AD converter input signal - is converted into difference current signal and several residual difference current signals (NL 17.1.78) - Google Patents
AD converter input signal - is converted into difference current signal and several residual difference current signals (NL 17.1.78)Info
- Publication number
- FR2358785A1 FR2358785A1 FR7721844A FR7721844A FR2358785A1 FR 2358785 A1 FR2358785 A1 FR 2358785A1 FR 7721844 A FR7721844 A FR 7721844A FR 7721844 A FR7721844 A FR 7721844A FR 2358785 A1 FR2358785 A1 FR 2358785A1
- Authority
- FR
- France
- Prior art keywords
- difference current
- signal
- signals
- converted
- converter input
- 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- Withdrawn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
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
- H03M1/44—Sequential comparisons in series-connected stages with change in value of analogue signal
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
The A/D convertor has an input stage (3) receiving the analogue signal and converting it into an analogue difference current signal. This signal controls a number of circuits with amplifying stages for generation of a number of consecutive residual difference current signals. These signals may have different frequencies. Circuits controlled by analogue difference current signal and residual difference current signals, generate a number of digital output signals. Each of the converter units and zero current generators (5, 9, 13) generates a series of significant bits starting with the least significant bit and ending with the most significant bit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70563376A | 1976-07-15 | 1976-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2358785A1 true FR2358785A1 (en) | 1978-02-10 |
Family
ID=24834313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7721844A Withdrawn FR2358785A1 (en) | 1976-07-15 | 1977-07-08 | AD converter input signal - is converted into difference current signal and several residual difference current signals (NL 17.1.78) |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5935530B2 (en) |
| DE (1) | DE2731919A1 (en) |
| FR (1) | FR2358785A1 (en) |
| NL (1) | NL7707875A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6079827A (en) * | 1983-10-07 | 1985-05-07 | Matsushita Electric Ind Co Ltd | Cascade type ad converter |
| JPS6033738A (en) * | 1983-08-03 | 1985-02-21 | Matsushita Electric Ind Co Ltd | Cascade connection type analog-digital converter |
| JPH0831794B2 (en) * | 1989-02-28 | 1996-03-27 | 三菱電機株式会社 | Analog / digital conversion method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52114257A (en) * | 1976-03-22 | 1977-09-24 | Nec Corp | Encoder device |
-
1977
- 1977-07-08 FR FR7721844A patent/FR2358785A1/en not_active Withdrawn
- 1977-07-14 DE DE19772731919 patent/DE2731919A1/en active Pending
- 1977-07-14 JP JP52084619A patent/JPS5935530B2/en not_active Expired
- 1977-07-14 NL NL7707875A patent/NL7707875A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2731919A1 (en) | 1978-01-19 |
| NL7707875A (en) | 1978-01-17 |
| JPS5935530B2 (en) | 1984-08-29 |
| JPS5310257A (en) | 1978-01-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |