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    • 10. 发明授权
    • Circuit arrangement having an amplifier arrangement and an offset compensation arrangement
    • 具有放大器布置和偏移补偿装置的电路装置
    • US07405614B2
    • 2008-07-29
    • US11417495
    • 2006-05-04
    • Heiko GutzkiMarcus Nuebling
    • Heiko GutzkiMarcus Nuebling
    • H03F1/02
    • H03F3/45475H03F1/52H03F3/211H03F3/45744H03F3/45968H03F2203/45212
    • A circuit arrangement is disclosed herein comprising an amplifier circuit having inputs configured to receive an input signal, and an output configured to provide an output signal. The circuit arrangement further comprises a first operational amplifier. The first operational amplifier includes inputs coupled to the inputs of the amplifier circuit, an output coupled to the output of the amplifier circuit, and a first compensation input. The compensation input is configured to feed an offset compensation signal to the first operational amplifier. The circuit arrangement further comprises a first compensation circuit configured to provide the offset compensation signal. The first compensation circuit is coupled to the inputs of the first operational amplifier. The circuit arrangement further comprises a deactivation circuit which is designed to temporarily deactivate the first compensation circuit.
    • 本文公开的电路装置包括具有被配置为接收输入信号的输入的放大器电路,以及被配置为提供输出信号的输出。 电路装置还包括第一运算放大器。 第一运算放大器包括耦合到放大器电路的输入的输入,耦合到放大器电路的输出的输出和第一补偿输入。 补偿输入被配置为将偏移补偿信号馈送到第一运算放大器。 电路装置还包括配置成提供偏移补偿信号的第一补偿电路。 第一补偿电路耦合到第一运算放大器的输入端。 该电路装置还包括一个停用电路,其被设计为暂时停用第一补偿电路。