发明名称 |
A capacitive digital to analog converter which can be trimmed. |
摘要 |
A capacitive digital to analog converter which can be trimmed to obtain precise capacitor matching is provided. The trimming method may be utilized with a weighted capacitive D/A converter having a scaling capacitor and an ordered plurality of capacitors for developing an analog output signal as a function of a digital input code. A compensation portion is coupled to at least a predetermined one of the capacitors for selectively changing the effective capacitive value of the predetermined capacitor. |
申请公布号 |
EP0130466(A2) |
申请公布日期 |
1985.01.09 |
申请号 |
EP19840107032 |
申请日期 |
1984.06.19 |
申请人 |
MOTOROLA, INC. |
发明人 |
MCKENZIE, JAMES A.;PETERSON, JOE W. |
分类号 |
H03M1/10;H03M1/00;H03M1/74 |
主分类号 |
H03M1/10 |
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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