发明名称 |
CURRENT SWITCHING CELL FOR DIGITAL TO ANALOG CONVERTER |
摘要 |
A current switching cell for a multi-cell DAC, each cell having a data input and an analog output and including a current switching circuit having a current node; a current definition circuit for providing current to the current switching circuit at the current node; the current definition circuit having a parasitic coupling between the input and the current node; a driver circuit responsive to a data input for actuating the current switching circuit to provide an analog output from the current from the current definition circuit; and a control circuit responsive to at least one common control signal for controlling the current definition circuit and isolating the parasitic coupling between the current node and the common control signal; the driver circuit may also have a parasitic coupling between its driver input and the current node and the control circuit may isolate the parasitic coupling between the current node and the driver input.
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申请公布号 |
US2003095059(A1) |
申请公布日期 |
2003.05.22 |
申请号 |
US20010042118 |
申请日期 |
2001.11.21 |
申请人 |
SCHOFIELD WILLIAM G.J.;MERCER DOUGLAS A. |
发明人 |
SCHOFIELD WILLIAM G.J.;MERCER DOUGLAS A. |
分类号 |
H03K17/041;H03M1/74;(IPC1-7):H03M1/66 |
主分类号 |
H03K17/041 |
代理机构 |
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代理人 |
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地址 |
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