Switched capacitor circuit to make amount of change in reference voltage even regardless of input level

    公开(公告)号:US10476449B2

    公开(公告)日:2019-11-12

    申请号:US15978233

    申请日:2018-05-14

    Abstract: A switched capacitor circuit includes a first main sampler circuit, a second main sampler circuit, a first replica sampler circuit, and a second replica sampler circuit. The first main sampler circuit samples a first input of a differential input, and generates a first output corresponding to the sampled first input based on a first reference voltage. The second main sampler circuit samples a second input of the differential input, and generates a second output corresponding to the sampled second input based on a second reference voltage. The first replica sampler circuit receives the first input, and holds the received first input based on the second reference voltage. The second replica sampler circuit receives the second input, and holds the received second input based on the first reference voltage.

    Successive approximation analog to digital converter and method of analog to digital conversion
    2.
    发明授权
    Successive approximation analog to digital converter and method of analog to digital conversion 有权
    模拟数字转换器的逐次逼近和模数转换的方法

    公开(公告)号:US09094030B2

    公开(公告)日:2015-07-28

    申请号:US13934569

    申请日:2013-07-03

    CPC classification number: H03M1/001 H03M1/1215 H03M1/468

    Abstract: An analog to digital converter includes a digital to analog converting circuit, a comparator and a signal processing circuit. The digital to analog converting circuit samples and holds an analog input signal, and converts digital output data to an analog signal to generate a hold voltage signal. The comparator compares the hold voltage signal with a reference voltage signal in response to a rising edge and a falling edge of a clock signal to generate a comparison output voltage signal. The signal processing circuit performs successive approximation based on the comparison output voltage signal to generate the digital output data.

    Abstract translation: 模数转换器包括数模转换电路,比较器和信号处理电路。 数模转换电路采样并保持模拟输入信号,并将数字输出数据转换为模拟信号以产生保持电压信号。 比较器根据时钟信号的上升沿和下降沿比较保持电压信号和参考电压信号,以产生比较输出电压信号。 信号处理电路基于比较输出电压信号进行逐次逼近以产生数字输出数据。

    Quantizer including capacitors and operating method of quantizer

    公开(公告)号:US10411726B2

    公开(公告)日:2019-09-10

    申请号:US16055193

    申请日:2018-08-06

    Abstract: A quantizer includes: a quantizer capacitor having a first end and a second end; an input calculator that receives input voltages, sums the input voltages, and outputs the summed result to the first end of the quantizer capacitor; a scaler that receives reference voltages and a scale code, generates a scale voltage from the reference voltages depending on the scale code, and outputs the scale voltage to the second end of the quantizer capacitor; and a latch that stores an output voltage of the first end of the quantizer capacitor.

    SUCCESSIVE APPROXIMATION ANALOG TO DIGITAL CONVERTER AND METHOD OF ANALOG TO DIGITAL CONVERSION
    4.
    发明申请
    SUCCESSIVE APPROXIMATION ANALOG TO DIGITAL CONVERTER AND METHOD OF ANALOG TO DIGITAL CONVERSION 审中-公开
    数字转换器的仿真近似模拟和数字转换的模拟方法

    公开(公告)号:US20130335245A1

    公开(公告)日:2013-12-19

    申请号:US13934569

    申请日:2013-07-03

    CPC classification number: H03M1/001 H03M1/1215 H03M1/468

    Abstract: An analog to digital converter includes a digital to analog converting circuit, a comparator and a signal processing circuit. The digital to analog converting circuit samples and holds an analog input signal, and converts digital output data to an analog signal to generate a hold voltage signal. The comparator compares the hold voltage signal with a reference voltage signal in response to a rising edge and a falling edge of a clock signal to generate a comparison output voltage signal. The signal processing circuit performs successive approximation based on the comparison output voltage signal to generate the digital output data.

    Abstract translation: 模数转换器包括数模转换电路,比较器和信号处理电路。 数模转换电路采样并保持模拟输入信号,并将数字输出数据转换为模拟信号以产生保持电压信号。 比较器根据时钟信号的上升沿和下降沿比较保持电压信号和参考电压信号,以产生比较输出电压信号。 信号处理电路基于比较输出电压信号进行逐次逼近以产生数字输出数据。

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