发明名称 |
Method and apparatus for digital to analog converters with improved switched R-2R ladders |
摘要 |
Operating range of R-2R ladders for digital to analog converters (DACs) is improved by increasing resistance in series with a termination switch in a termination leg to avoid transistor saturation for increasing DAC resolution, increasing reference voltage range, or other application. The switched R-2R ladder circuit is modified to compensate for increasing resistance to maintain proper resistor matching for generation of the appropriate range of analog output voltages for a digital input signal.
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申请公布号 |
US6380877(B2) |
申请公布日期 |
2002.04.30 |
申请号 |
US20010840661 |
申请日期 |
2001.04.23 |
申请人 |
MAXIM INTEGRATED PRODUCTS, INC. |
发明人 |
CASTANEDA DAVID;FANG GARY G.;RAHIM CHOWDHURY F. |
分类号 |
H03M1/06;H03M1/78;(IPC1-7):H03M1/78 |
主分类号 |
H03M1/06 |
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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