JPS6477322A - Optional calibration type analog/digital conversion system - Google Patents
Optional calibration type analog/digital conversion systemInfo
- Publication number
- JPS6477322A JPS6477322A JP23406687A JP23406687A JPS6477322A JP S6477322 A JPS6477322 A JP S6477322A JP 23406687 A JP23406687 A JP 23406687A JP 23406687 A JP23406687 A JP 23406687A JP S6477322 A JPS6477322 A JP S6477322A
- Authority
- JP
- Japan
- Prior art keywords
- conversion
- cycle
- capacitor
- executed
- measured
- 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
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE:To attain highly reliable AD conversion by executing a conversion cycle and an error detecting cycle by means of time division. CONSTITUTION:At first AD conversion is executed in the conversion cycle Conv. based upon a charging mode and a charge redistributing mode using a main DA convert 41 and a sub-DA converter 42, and then error data are measured in the error detecting cycle Cal.(N) based upon a charging mode to a capacitor CN and a charge redistributing mode. In the error detecting cycle Cal., the error data to the capacitor C10 are measured by charging to capacitors C9-C0 executed through switches S9-S0 and charge redistribution to the capacitor C10 executed through a switch S10. Said operation is successively repeated and the error data of respective voltage dividing resistors of capacitors C9-C1 and the sub-DA converter 42 are measured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23406687A JPS6477322A (en) | 1987-09-18 | 1987-09-18 | Optional calibration type analog/digital conversion system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23406687A JPS6477322A (en) | 1987-09-18 | 1987-09-18 | Optional calibration type analog/digital conversion system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6477322A true JPS6477322A (en) | 1989-03-23 |
Family
ID=16965055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23406687A Pending JPS6477322A (en) | 1987-09-18 | 1987-09-18 | Optional calibration type analog/digital conversion system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6477322A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03280719A (en) * | 1990-03-29 | 1991-12-11 | Sanyo Electric Co Ltd | A/d converter |
US8519874B2 (en) | 2010-09-29 | 2013-08-27 | Fujitsu Limited | Successive approximation A/D converter |
JP2015115883A (en) * | 2013-12-13 | 2015-06-22 | ルネサスエレクトロニクス株式会社 | Semiconductor device |
-
1987
- 1987-09-18 JP JP23406687A patent/JPS6477322A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03280719A (en) * | 1990-03-29 | 1991-12-11 | Sanyo Electric Co Ltd | A/d converter |
US8519874B2 (en) | 2010-09-29 | 2013-08-27 | Fujitsu Limited | Successive approximation A/D converter |
JP2015115883A (en) * | 2013-12-13 | 2015-06-22 | ルネサスエレクトロニクス株式会社 | Semiconductor device |
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