公开(公告)号：US20130106629A1

公开(公告)日：2013-05-02

申请号：US13282304

申请日：2011-10-26

申请人： Olivier NYS ,  Ark-Chew Wong

发明人： Olivier NYS ,  Ark-Chew Wong

IPC分类号： H03M1/38

CPC分类号： H03M1/144 ,  H03M1/0695 ,  H03M1/468

摘要： Examples are provided for converting an analog signal to a digital signal by processing more than one bit per cycle in a number of successive approximation cycles. A system may include capacitive sub-DAC circuits and comparators. Switches may isolate the capacitive sub-DAC circuits during one or more first cycles, and merge the sub-DAC circuits during one or more last cycles. A successive approximation register (SAR) may generate digital output signals or DAC digital signals. In another example, a system may include a DAC circuit. An input capacitor may be pre-charged to at least one of an analog input signal and a DAC analog signal. A programmable gain amplifier may amplify an error signal. A multi-bit ADC may convert the amplified error signal to a multi-bit digital signal. An SAR may use the multi-bit digital signal to generate a DAC digital signal or a digital output signal.

摘要翻译： 提供了用于通过在多个逐次逼近循环中处理每个周期多于一个比特来将模拟信号转换为数字信号的实例。 系统可以包括电容式子DAC电路和比较器。 开关可以在一个或多个第一周期期间隔离电容性的次DAC电路，并且在一个或多个最后一个周期期间合并子DAC电路。 逐次逼近寄存器（SAR）可以产生数字输出信号或DAC数字信号。 在另一示例中，系统可以包括DAC电路。 输入电容器可以被预先充电到模拟输入信号和DAC模拟信号中的至少一个。 可编程增益放大器可以放大误差信号。 多位ADC可将放大的误差信号转换为多位数字信号。 SAR可以使用多位数字信号来产生DAC数字信号或数字输出信号。

公开(公告)号：US20080094270A1

公开(公告)日：2008-04-24

申请号：US11848869

申请日：2007-08-31

申请人： Olivier NYS

发明人： Olivier NYS

IPC分类号： H03M1/12

CPC分类号： H03M3/384 ,  H03M3/464

摘要： Electronic circuit for the analog-to-digital conversion of the alternative current (AC) component of an analog input signal. The electronic circuit has a coupling device with an input and an outputcoupling device delivers at its output an analog AC signal when the analog input signal is applied to the input. An analog-to-digital converter converts the analog AC signal into a digital output signal. A feedback loop has a digital-to-analog converter for converting the digital output into an analog feedback signal, the feedback loop being coupled to the coupling device, and the feedback loop has a first feedback path comprising a switched capacitor.

摘要翻译： 用于模拟输入信号的替代电流（AC）分量的模数转换的电子电路。 电子电路具有一个具有输入端的耦合器件，而输出耦合器件在模拟输入信号被施加到输入端时，输出一个模拟AC信号。 模拟 - 数字转换器将模拟AC信号转换成数字输出信号。 反馈回路具有数模转换器，用于将数字输出转换为模拟反馈信号，反馈回路耦合到耦合器件，反馈回路具有包括开关电容器的第一反馈通路。