Author： Kumngern M. Dejhan K.
Publisher： Taylor & Francis Ltd
ISSN： 1362-3060
Source： International Journal of Electronics, Vol.93, Iss.3, 2006-03, pp. : 185-199
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Abstract
This paper describes a high frequency and high precision full-wave rectifier using a fully differential input and output operational transconductance amplifier (FDIO-OTA), which is very suitable for CMOS technology implementation. The system comprises a voltage to current converter, precision full-wave rectifier and a current-to-voltage converter. An input voltage signal is converted into two symmetrical current signals by using a FDIO-OTA. Two current signals will be rectified by using MOS diodes and convert into output voltage by using grounded MOS resistor. The circuit exhibits a very precise rectifier and very high operating frequency. The simulation results demonstrate the performance of the proposed circuit.
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