Three-mode controllable master-slave monostable multivibrators using current-feedback operational amplifiers

摘要

This study presents a three-mode controllable master-slave monostable multivibrator based on current-feedback operational amplifiers (CFOAs) for analogue signal-processing applications. The circuit is operated using a positive-edge triggering signal to generate the output pulses. The pulse width of the output signals can be adjusted by controlling the voltage, current or resistance to yield various circuit operating modes. This study also presents a three-mode controllable inverting and non-inverting operation master-slave monostable multivibrator to extend the application of the proposed circuit. In addition, the circuit operations, related governing equations, non-ideality analyses and experimental examples and results for the proposed monostable multivibrators are described. Commercially available CFOA integrated circuits (AD844ANs) and discrete passive components are used to construct the prototype circuits. The experimental results verified the validity of the proposed circuits.