Current-Mode High-Precision Full-Wave Rectifier Based on Carbon Nanotube Field Effect Transistors

This paper presents a novel design of a high performance current mode (CM) precision full-wave rectifier by using just four diode-tied carbon nanotube field effect transistors. To compare the behavior of the proposed design, the frequency dependent RMS error and DC transient value for different values of input current amplitudes are evaluated. Extensive simulation results using HSpice demonstrate that the proposed circuit has a good performance at high frequencies. The main advantages of the proposed design over the previous designs are the minimal number of the transistors, small size, circuit simplicity, high accuracy and capability of rectifying low-level signals at high frequencies with little or no distortion. The circuit also provides good temperature stability.