发明名称 METHOD AND APPARATUS FOR ACCURATE DIGITAL-TO-ANALOG CONVERSION
摘要 A digital-to-analog converter includes a plurality of current sources, a differential amplifier, and a plurality of switching modules. The plurality of switching modules is operably coupled to the plurality of current sources and the digital amplifier module provides the analog output for the digital-to-analog converter. Each of the plurality of switching modules has a corresponding current source of the plurality of current sources, where a 1<st >set of the plurality of switching modules couples the corresponding current sources to the differential amplifier module in a 1<st >manner based on a digital input value and a 2<nd >set of the plurality of switching modules couples the corresponding current sources to the differential amplifier in a 2<nd >manner based on the digital input values such that, over time, errors introduced by the coupling in the 1<st >manner substantially compensates for errors introduced by the coupling in the 2<nd >manner.
申请公布号 US2004104830(A1) 申请公布日期 2004.06.03
申请号 US20030603544 申请日期 2003.06.25
申请人 MAY MARCUS W. 发明人 MAY MARCUS W.
分类号 H03M1/06;H03M1/66;H03M1/74;(IPC1-7):H03M1/66 主分类号 H03M1/06
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