公开(公告)号：US20130201043A1

公开(公告)日：2013-08-08

申请号：US13369093

申请日：2012-02-08

申请人： Ark-Chew WONG ,  Olivier Jacques NYS ,  Jonathan MULLER

发明人： Ark-Chew WONG ,  Olivier Jacques NYS ,  Jonathan MULLER

IPC分类号： H03M1/34 ,  H03M1/00

CPC分类号： H03M1/125 ,  H03M1/42

摘要： Examples are provided for converting an analog signal to a digital output signal using serial-ripple analog-to-digital conversion (ADC). An ADC circuit may include conversion stages coupled in series. Each conversion stage may generate a bit for the digital output signal. A data latch may receive bits for the digital output signal from the conversion stages and to provide the digital output signal based on the bits. A conversion stage may include a comparator circuit and a multiplexer circuit. The comparator circuit may compare a sampled input signal with a reference signal and to generate the associated bit of the digital output signal based on a result of the comparison. The multiplexer circuit may provide an associated reference signal to a comparator circuit of a next conversion stage, where the next conversion stage is subsequent to the conversion stage.

摘要翻译： 提供了使用串行纹波模数转换（ADC）将模拟信号转换为数字输出信号的示例。 ADC电路可以包括串联耦合的转换级。 每个转换级可以产生数字输出信号的位。 数据锁存器可以接收来自转换级的数字输出信号的位，并且基于位提供数字输出信号。 转换级可以包括比较器电路和多路复用器电路。 比较器电路可以将采样的输入信号与参考信号进行比较，并且基于比较的结果产生数字输出信号的相关位。 多路复用器电路可以向下一个转换级的比较器电路提供相关联的参考信号，其中下一个转换级在转换级之后。