Ad and da converting circuit with monitoring function for state of quantization by ad conversion |
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| 申请号 | JP18227782 | 申请日 | 1982-10-18 | 公开(公告)号 | JPS5972221A | 公开(公告)日 | 1984-04-24 |
| 申请人 | Victor Co Of Japan Ltd; | 发明人 | MORIYAMA MASARU; | ||||
| 摘要 | PURPOSE:To easily monitor the state of quantization by A/D conversion through simple constitution by using the A/D converter of a sequential comparison type A/D converting circuit as a D/A converting circuit through a switching circuit. CONSTITUTION:The movable contact (v) of a changeover switch SW1 is connected to the output terminal (c) of a D/A converter DAC used as a component of an A/D and D/A converting circuit A-D-A. On the other hand, a changeover switch SW2 is provided between the output side of a sequential comparison type register SAR and the input terminal of the DA converter DAC. Then, the switch SW1 is connected to a summing point (a) and the switch SW2 is turned on to operate the circuit A-D-A as an A/D converter; while the switch SW1 is connected to the side of an analog signal output circuit POC, the switch SW2 is turned off to operate the circuit A-D-A as a D/A converter. | ||||||
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| 说明书全文 | |||||||
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