Analog nonlinear function synthesis

Describes a resistive network combining constant and controlled resistors, as well as its implementation with MOS transistors. This circuit synthesizes nonlinear functions of several variables. We can consider it an implementation of fuzzy rules, since its constituents serve as membership functions, fuzzy logic gates, and center-of-gravity defuzzification circuits. Alternatively, we can consider it a lookup table with interpolation, since fuzzy rules and lookup table entries act alike. Its single generic circuit structure lets us synthesize a number of different nonlinear functions by customizing geometric parameters or connection patterns. This simple, stable, low-power circuit supports microsensor-microactuator interfacing and management. Its straightforward design reduces custom IC design costs