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采用Ｐ阱ＣＭＯＳ工艺制作了一种全对称、电流型的多端ＭＡＸ门和ＭＩＮ门电路．实验结果表明，ＭＡＸ门的输出相对最大输入电流的偏差较小，最大偏差为５μＡ；ＭＩＮ门的输出相对最小输入电流的偏差略大于ＭＡＸ门，最大偏差约为１３μＡ．但ＭＡＸ门和ＭＩＮ门都有较高的分辨精度，都在５μＡ以内．因此，这种多端的电流型ＭＡＸ（ＭＩＮ）门电路特别适合于在模糊逻辑系统中应用．提出并制作了一种结构简单、效果很好的非线性Ｉ－Ｖ转换电路，可用于将以电流值方式表示的最大输出信号转变为以数字电平表示．
A fully symmetrical, current-mode, multi-port MAX gate and MIN gate are fabricated using P-well CMOS technology. The experimental results show that the deviation of the MAX gate output from the maximum input current is small with a maximum deviation of 5μA. The deviation of the MIN gate output from the minimum input current is slightly larger than that of the MAX gate with a maximum deviation of about 13μA. However, MAX gate and MIN gate have higher resolution accuracy, are less than 5μA. Therefore, this versatile current-mode MAX (MIN) gate is particularly suitable for use in fuzzy logic systems. A simple and effective non-linear I-V conversion circuit is proposed and made for converting a maximum output signal expressed in the form of a current value into a digital level representation.