发明名称 |
A/D converter with noise elimination function |
摘要 |
An A/D converter includes a noise detector for generating a noise detection signal when it detects noise in an A/D conversion reference voltage; an A/D operation controller for generating a bit-shift signal in response to the noise detection signal; and an A/D conversion module for discarding an A/D conversion resultant bit affected by noise in response to the bit-shift signal, for holding the remaining A/D conversion resultant bits, and for restarting the A/D conversion from the discarded A/D conversion resultant bit after the noise becomes negligible. The A/D converter can obtain reliable A/D conversion data against the noise in the A/D conversion reference voltage without increasing the circuit scale so much.
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申请公布号 |
US6639540(B1) |
申请公布日期 |
2003.10.28 |
申请号 |
US20020326055 |
申请日期 |
2002.12.23 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA;MITSUBISHI ELECTRIC SYSTEM LSI DESIGN CORPORATION |
发明人 |
KOGO TERUYUKI;KUBO KENJI |
分类号 |
H03M1/08;H03M1/12;H03M1/38;(IPC1-7):H03M1/12 |
主分类号 |
H03M1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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