发明名称 |
SEGMENTED DIGITAL-TO-ANALOG CONVERTER HAVING WEIGHTED CURRENT SOURCES |
摘要 |
A digital input to a digital-to-analog converter (DAC) is divided into a most significant portion and a lesser significant portion. At least one tap voltage generator generates a plurality of voltages, preferably using a resistor string. A decoder decodes at least one subword that forms the lesser significant portion to generate a corresponding at least one control signal. A switching unit accesses voltages generated by the at least one tap voltage generator in response to the at least one control signal. A scaled current generator generates a respective weighted current from each accessed voltage. An output stage combines all the weighted currents with a voltage that is an analog representation of the most significant portion of the digital input to generate an analog approximation of the entire digital input. |
申请公布号 |
WO2013165976(A2) |
申请公布日期 |
2013.11.07 |
申请号 |
WO2013US38806 |
申请日期 |
2013.04.30 |
申请人 |
ANALOG DEVICES TECHNOLOGY |
发明人 |
MEDINA SANCHEZ-CASTRO, ITALO, CARLOS |
分类号 |
H03M1/78 |
主分类号 |
H03M1/78 |
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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