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中文摘要：
提出了一种新颖OTA—C实现的电流模式双二阶通用滤波器。该滤波器具有三个输入端和一个输出端，通过选择不同的输入信号即能实现低通、高通、带通、带阻和全通五种滤波器功能。电路结构简单、中心频率和品质因数可调，灵敏度低，均为0．5。理论分析和SPICE仿真表明所提电路方案正确可行。
英文摘要：
A new second-order universal active current-mode filter based on OTA-C was presented. The filters have one output and three inputs. Each kind of filter such as low-pass, high-pass, band-pass, notch and all-pass filter can be obtained by selecting the corresponding input signal combinations. The proposed citcuit is with simple structure, separately adjustable centre frequency and the quality factor, low passive sensitivities （equal 0.5）. Theoretical analysis and SPICE simulation indicate that the proposed circuit is effective and feasible.
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