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提出了一种高阶全极点运算跨导放大器（ＯＴＡ）或跨导器（Ｔ）低通滤波器设计方法。基于系统函数的直接模拟，得到了具有最少有源元件的全极点低通滤波器。该滤波器具有高截止频率、与ＭＯＳ工艺兼容、便于单片集成等优点。给出了Ｂｕｔｔｅｒｗｏｒｔｈ最平坦型低通滤波器的设计实例和ＰＳＰＩＣＥ模拟分析。
A high-order all-pole computing transconductance amplifier (OTA) or transconductor (T) low-pass filter design method is proposed. Based on the direct simulation of system functions, an all-pole low-pass filter with the fewest active components is obtained. The filter has a high cut-off frequency, compatible with the MOS process, monolithic integration. The design example of Butterworth’s flattest low-pass filter and PSPICE simulation are given.