发明名称 |
Current source cell arrangement, method of selecting current cell and current addition type digital-to-analog converter |
摘要 |
<p>In a current source cell arrangement which comprises a plurality of current source cells (1) each having a predetermined current value, the current source cells being arranged in matrix; two or more of the current source cells in the current source cell matrix are combined to form constant current sources MCELL1-MCELL15 each having a predetermined current value; the current source cell matrix is divided into an A-block (2) and a B-block (3) arranged symmetrically with respect to a center of the matrix; and the constant current sources are formed by combining equal numbers of the current source cells selected in a row or column direction from each block. <IMAGE></p> |
申请公布号 |
EP1178611(A2) |
申请公布日期 |
2002.02.06 |
申请号 |
EP20010115194 |
申请日期 |
2001.06.22 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KATADA, TOMOYUKI |
分类号 |
H01L21/822;H01L21/82;H01L27/04;H03M1/06;H03M1/66;H03M1/74;(IPC1-7):H03M1/06 |
主分类号 |
H01L21/822 |
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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