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发明公开
CN108809319A 数/模转换器及操作方法 审中-实审

数/模转换器及操作方法
摘要：
本发明涉及数/模转换器及操作方法。一种数/模转换器(506)包含加法器(504)，所述加法器(504)具有多个输入及耦合到所述转换器的输出的输出。所述转换器(506)进一步包含多个数/模DAC元件(640)，每一DAC元件(640)具有耦合到所述加法器(504)的输入的输出，且每一DAC元件(640)具有DAC元件输入。多个比较器(620)具有耦合到DAC元件输入的输出。每一比较器(620)的第一输入耦合到所述转换器的所述输入。每一比较器的第二输入选择性地耦合到经预先确定电压及伪随机位序列(PRBS[n])中的一者。
摘要（英）：

The invention relates to a digital-to-analog converter and a method of operating. The digital-to-analog converter (506) includes an adder (504) having a plurality of inputs and an output coupled to the output of the converter. The converter (506) further includes a plurality of digital-to-analog (DAC) elements (640), each DAC element (640) has an output coupled to an input of the adder (504), andeach DAC element (640) has a DAC element input. A plurality of comparators (620) have outputs coupled to a DAC element input. A first input of each comparator (620) is coupled to the input of the converter. A second input of each comparator is selectively coupled to one of a predetermined voltage and a pseudo-random bit sequence (PRBS[n]).

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