OTA-based piecewise-linear circuit for nonlinear function syntheses

An operational transconductance amplifier (OTA) based wide-tunable-range piecewise-linear circuit, where the break-point, the limit-point and slope can be electronically varied, is proposed in this article. The proposed circuit can be employed to synthesize accurately a large class of non-linear circuit. Simulation results showing the accuracy and linearity of the circuits are also included.