JPS54158846A - Analog-to-digital converter - Google Patents
Analog-to-digital converterInfo
- Publication number
- JPS54158846A JPS54158846A JP6859078A JP6859078A JPS54158846A JP S54158846 A JPS54158846 A JP S54158846A JP 6859078 A JP6859078 A JP 6859078A JP 6859078 A JP6859078 A JP 6859078A JP S54158846 A JPS54158846 A JP S54158846A
- Authority
- JP
- Japan
- Prior art keywords
- integrator
- precision
- 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.)
- Granted
Links
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE: To make it possible to constitute an analog-digital converter as a monolithic integrated circuit excellently while removing the phase delay of an integrator output and the conversion error of a comparator output in a short time and with high precision, by providing a calibration period for integrating the 2nd reference voltage.
CONSTITUTION: The phase lag of an output to the step input variation of the integrator is determined only by the gain of the integrator and frequency characteristics of the gain. In the A/D converter, direct-current amplifier 1, resistance R and capacitor C constitute integrating circuit INT, and R is supplied with input voltage VIN and two reference voltages -VR and VR via electronic switches S1 to S3. The A/D converter consists of comparator 2, control circuit 3, up-down counter 4, etc. Further, the precision of the 2nd reference voltage VR can be lowered without influencing the precision of the entire A/D conversion as integration period T3 for the removal of an error.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6859078A JPS54158846A (en) | 1978-06-06 | 1978-06-06 | Analog-to-digital converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6859078A JPS54158846A (en) | 1978-06-06 | 1978-06-06 | Analog-to-digital converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54158846A true JPS54158846A (en) | 1979-12-15 |
JPS6221292B2 JPS6221292B2 (en) | 1987-05-12 |
Family
ID=13378152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6859078A Granted JPS54158846A (en) | 1978-06-06 | 1978-06-06 | Analog-to-digital converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54158846A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0730662B2 (en) * | 1987-12-31 | 1995-04-10 | スワン商事株式会社 | Horizontal lifting device using wire rope |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49103560A (en) * | 1973-02-05 | 1974-10-01 | ||
JPS5050853A (en) * | 1973-07-19 | 1975-05-07 | ||
JPS5148261A (en) * | 1974-10-24 | 1976-04-24 | Tokyo Shibaura Electric Co | aad henkanki |
-
1978
- 1978-06-06 JP JP6859078A patent/JPS54158846A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49103560A (en) * | 1973-02-05 | 1974-10-01 | ||
JPS5050853A (en) * | 1973-07-19 | 1975-05-07 | ||
JPS5148261A (en) * | 1974-10-24 | 1976-04-24 | Tokyo Shibaura Electric Co | aad henkanki |
Also Published As
Publication number | Publication date |
---|---|
JPS6221292B2 (en) | 1987-05-12 |
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