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    • 26. 发明授权
    • Pipelined analog-to-digital converter
    • 流水线模数转换器
    • US08242946B2
    • 2012-08-14
    • US12849466
    • 2010-08-03
    • Tracy JohancsikRex K. Hales
    • Tracy JohancsikRex K. Hales
    • H03M1/38
    • H03M1/168
    • A pipelined Analog-to-Digital Converter (ADC) comprising a number of stages, at least one of the stages includes a sample and hold circuit. The sample and hold circuit includes a first output connected to an input of a sub-ADC, an output of the sub-ADC connected to an input of a Digital-to-Analog Converter (DAC), an output of the DAC connected to a node, and a second output connected to the node. The sample and hold circuit is configured to independently scale a signal produced by the first output and a signal produced by the second output.
    • 包括多个级的流水线模数转换器(ADC),所述级中的至少一个包括采样和保持电路。 采样和保持电路包括连接到子ADC的输入的第一输出,连接到数模转换器(DAC)的输入的子ADC的输出,DAC的输出连接到 节点和连接到该节点的第二输出。 采样和保持电路被配置为独立地缩放由第一输出产生的信号和由第二输出产生的信号。
    • 29. 发明授权
    • Analog-to-digital converter with digital signal processing functionality to emulate many different sample frequencies, resolutions, and architectures
    • 具有数字信号处理功能的模数转换器可以模拟许多不同的采样频率,分辨率和架构
    • US06891490B2
    • 2005-05-10
    • US10454711
    • 2003-06-04
    • Rex K. Hales
    • Rex K. Hales
    • H03M1/00H03M1/12
    • H03M1/004H03M1/12
    • A system for emulating characteristics of a plurality of analog-to-digital converter (ADC) architectures in the conversion of an analog signal to a digital signal. The system comprises a flash ADC for sampling the analog signal and outputting a digital representation of a sample of the analog signal, a digital-to-analog converter (DAC) for supplying the reference values to the flash ADC, and a digital signal processor (DSP) for processing the digital representation of the sample and outputting the digital signal. The digital representation is based on a comparison of the sample to reference values and comprising a number of bits of resolution. The DSP is configured to send a modifiable control signal defining the reference values to the DAC.
    • 一种用于模拟将模拟信号转换为数字信号的多个模数转换器(ADC)架构的特性的系统。 该系统包括用于对模拟信号进行采样并输出模拟信号采样的数字表示的闪存ADC,用于向闪存ADC提供参考值的数模转换器(DAC)和数字信号处理器 DSP),用于处理样本的数字表示并输出数字信号。 数字表示基于样本与参考值的比较,并且包括许多位的分辨率。 DSP配置为向DAC发送定义参考值的可修改控制信号。