JPS6466726A - Analog/digital converter - Google Patents
Analog/digital converterInfo
- Publication number
- JPS6466726A JPS6466726A JP22310887A JP22310887A JPS6466726A JP S6466726 A JPS6466726 A JP S6466726A JP 22310887 A JP22310887 A JP 22310887A JP 22310887 A JP22310887 A JP 22310887A JP S6466726 A JPS6466726 A JP S6466726A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- analog
- conversion
- circuit
- digital
- 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 improve the processing efficiency of a data processor and to perform the digital processing of data at a high speed, by applying the A/D conversion to the analog signal based on a start signal and taking out the hold digital signal after a prescribed time. CONSTITUTION:An S/H amplifier 21 samples and holds the analog signals applied to an input terminal 1 at the prescribed time intervals based on the sampling/holding signal S10 received from an A/D conversion control circuit 27. Then the held analog signal is applied to an A/D converting circuit 23. The circuit 23 receives the analog held by the amplifier 21 and starts the A/D conversion when a conversion start signal 11 is given from the circuit 27 to convert the analog signal into the 8-bit digital signals ADO-AD7. Thus a microcomputer 31 interrupts its processing under execution and reads the digital signal out of a register 29 to process an arithmetic operation, etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22310887A JPS6466726A (en) | 1987-09-08 | 1987-09-08 | Analog/digital converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22310887A JPS6466726A (en) | 1987-09-08 | 1987-09-08 | Analog/digital converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6466726A true JPS6466726A (en) | 1989-03-13 |
Family
ID=16792950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22310887A Pending JPS6466726A (en) | 1987-09-08 | 1987-09-08 | Analog/digital converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6466726A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6804732B2 (en) | 2002-03-29 | 2004-10-12 | Denso Corporation | Port sampling circuit apparatus incorporated in a microcomputer |
JPWO2020137656A1 (en) * | 2018-12-25 | 2021-12-23 | 京セラ株式会社 | Analog / digital converters, wireless communication devices, and analog / digital converters |
-
1987
- 1987-09-08 JP JP22310887A patent/JPS6466726A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6804732B2 (en) | 2002-03-29 | 2004-10-12 | Denso Corporation | Port sampling circuit apparatus incorporated in a microcomputer |
JPWO2020137656A1 (en) * | 2018-12-25 | 2021-12-23 | 京セラ株式会社 | Analog / digital converters, wireless communication devices, and analog / digital converters |
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