In this paper, a mixed mode square-rooting circuit based on CMOS transistors operating in saturation region is proposed. The major advantage over the other square-rooting circuits is that it has two inputs (voltage input Vi and current input Ii), and ...
In this paper, a mixed mode square-rooting circuit based on CMOS transistors operating in saturation region is proposed. The major advantage over the other square-rooting circuits is that it has two inputs (voltage input Vi and current input Ii), and its output VO can be square-rooting function of either Vi or Ii. The input range is analyzed. Simulation results are carried out by PSpice program. They find that the circuit can operate at ± 2_V power supplies, the voltage input range is about 300㎷, the relative error as Ii=0_A and varied is 1.869% the current input range is about 100㎂, the relative error as Vi=0_V and varied is 1.865%, and the voltage output range is about 300㎷. Experimental results are done to confirm operation of the circuit by using CD4007 transistor arrays.