AMPLIFYING CIRCUIT AND ANALOG DIGITAL CONVERSION CIRCUIT WITH THE SAME
    8.
    发明申请
    AMPLIFYING CIRCUIT AND ANALOG DIGITAL CONVERSION CIRCUIT WITH THE SAME 有权
    放大电路和模拟数字转换电路

    公开(公告)号:US20120299758A1

    公开(公告)日:2012-11-29

    申请号:US13479592

    申请日:2012-05-24

    IPC分类号: H03M1/00

    摘要: An analog to digital converting device includes a first digital conversion (ADC) circuit configured to convert an inputted analog signal into a first digital signal, a first multiplying digital to analog converting (MDAC) circuit configured to amplify a difference between a first converted signal and the inputted analog signal, a second ADC circuit configured to convert an output of the first MDAC circuit into a second digital signal, a second MDAC circuit configured to amplify difference between a second converted signal converted from the second digital signal and the output of the first MDAC circuit, a third ADC circuit configured to convert an output of the second MDAC circuit into a third digital signal, and a common amplifying circuit shared by the first and the second MDAC circuits, wherein the common amplifying circuit consumes current based on which MDAC circuit the common amplifying circuit operates with.

    摘要翻译: 模数转换装置包括:第一数字转换(ADC)电路,被配置为将输入的模拟信号转换为第一数字信号;第一乘法数/模转换(MDAC)电路,被配置为放大第一转换信号和 输入的模拟信号,被配置为将第一MDAC电路的输出转换为第二数字信号的第二ADC电路,被配置为放大从第二数字信号转换的第二转换信号与第一数字信号的输出之间的差的第二MDAC电路 MDAC电路,被配置为将第二MDAC电路的输出转换为第三数字信号的第三ADC电路和由第一和第二MDAC电路共用的公共放大电路,其中,所述公共放大电路基于哪个MDAC电路消耗电流 公共放大电路与。