发明授权
- 专利标题: Analog-to-digital converter architecture using a capacitor array structure
- 专利标题(中): 模数转换器架构采用电容阵列结构
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申请号: US11524989申请日: 2006-09-20
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公开(公告)号: US07403150B1公开(公告)日: 2008-07-22
- 发明人: Mehrdad Heshami , Mansour Keramat
- 申请人: Mehrdad Heshami , Mansour Keramat
- 申请人地址: US CA Santa Clara
- 专利权人: Alvand Technologies, Inc.
- 当前专利权人: Alvand Technologies, Inc.
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Stattler-Suh PC
- 主分类号: H03M1/36
- IPC分类号: H03M1/36
摘要:
An analog-to-digital converter architecture is described. An analog-to-digital converter circuit includes a switched capacitor circuit structure to receive an input voltage signal and one or more reference voltage signals. The analog-to-digital converter circuit also includes a comparator device array coupled to the switched capacitor circuit structure. The comparator device array further includes multiple comparator devices coupled in parallel, each comparator device having a pair of inputs coupled to the switched capacitor circuit structure to receive a voltage output signal from the switched capacitor circuit, a voltage value of the voltage output signal being calculated as a difference between an input voltage value of the input voltage signal and a predetermined value of the reference voltage signal, which is dependent on the position of the respective comparator device within the comparator device array, each comparator device experiencing an identical common mode voltage input within the analog-to-digital converter circuit.
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