JPS56125115A - Analog and digital converter - Google Patents
Analog and digital converterInfo
- Publication number
- JPS56125115A JPS56125115A JP2875380A JP2875380A JPS56125115A JP S56125115 A JPS56125115 A JP S56125115A JP 2875380 A JP2875380 A JP 2875380A JP 2875380 A JP2875380 A JP 2875380A JP S56125115 A JPS56125115 A JP S56125115A
- Authority
- JP
- Japan
- Prior art keywords
- bits
- converters
- output
- converter
- analog
- 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
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method 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
- H03M1/12—Analogue/digital converters
- H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
- H04N25/78—Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE:To make easy the extension of number of bits of A/D converter, by using a plurality of high speed A/D converters simple in the constitution comparatively and combining the amplifier which shifts the weight of digital bit by a multiple of 2<n> and the A/D converters. CONSTITUTION:After an analog signal voltage V is converted into a digital value Aj (where; j=4-15) in 12-bits at the 1st A/D converter 1 and the voltage V is amplified at an amplifier 3 with an amplification factor of 16, it is converted into a digital value Bj (where; j=0-11) in 12-bits at the 2nd A/D converter 2. The digital values Aj and Bj output at the converters 1 and 2 are fed to a switching circuit 4 so that an output Dj in 16-bits can be output at the output of a switching control circuit 4. Further, the extension of the number of bits of the A/D converters can be made easy with a simple circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2875380A JPS56125115A (en) | 1980-03-06 | 1980-03-06 | Analog and digital converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2875380A JPS56125115A (en) | 1980-03-06 | 1980-03-06 | Analog and digital converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56125115A true JPS56125115A (en) | 1981-10-01 |
Family
ID=12257161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2875380A Pending JPS56125115A (en) | 1980-03-06 | 1980-03-06 | Analog and digital converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56125115A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01241223A (en) * | 1988-03-23 | 1989-09-26 | Matsushita Electric Ind Co Ltd | Analog/digital converter |
| WO1996015502A1 (en) * | 1994-11-11 | 1996-05-23 | Siemens Aktiengesellschaft | Process for the rapid digital acquisition and processing of analogue measured values in a processor with restricted binary word length |
| US7995124B2 (en) * | 2007-09-14 | 2011-08-09 | Omnivision Technologies, Inc. | Image sensor apparatus and method for improved dynamic range with multiple readout circuit paths |
-
1980
- 1980-03-06 JP JP2875380A patent/JPS56125115A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01241223A (en) * | 1988-03-23 | 1989-09-26 | Matsushita Electric Ind Co Ltd | Analog/digital converter |
| WO1996015502A1 (en) * | 1994-11-11 | 1996-05-23 | Siemens Aktiengesellschaft | Process for the rapid digital acquisition and processing of analogue measured values in a processor with restricted binary word length |
| US7995124B2 (en) * | 2007-09-14 | 2011-08-09 | Omnivision Technologies, Inc. | Image sensor apparatus and method for improved dynamic range with multiple readout circuit paths |
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