A linear current-controlled floating negative resistor

In this article, a low voltage CMOS current controlled floating negative resistor which is convenient for integrated circuit implementation is designed by using a self-cascode composite transistor. The proposed circuit only required +/- 0.75 V as a power supply has a simple circuit structure and a low power consumption of which value is only 65 mu W. The basic advantages of this circuit are a wide tuning range of the resistance value, an acceptable frequency performance and a wide dynamic range. The performances of the proposed circuit are simulated with SPICE to confirm the presented theory