Design of second-generation current conveyors employing bacterial foraging optimization

作者：Chatterjee Amitava^*; Fakhfakh Mourad; Siarry Patrick

来源：MICROELECTRONICS JOURNAL, 2010, 41(10): 616-626.

DOI：10.1016/j.mejo.2010.06.013

• Second-generation current conveyor
• Bacterial foraging optimization
• CMOS
• Parasitic X-port input resistance
• High end cut-off frequency of the current signal

The present paper deals with the optimal sizing of CMOS positive second-generation current conveyors (CCII+) employing an optimization algorithm. A contemporary non-gradient stochastic optimization algorithm, called bacterial foraging optimization (BFO) algorithm, has been employed to obtain the optimal physical dimensions of the constituent PMOS and NMOS transistors of the CCII+. The optimization problem has been cast as a bi-objective minimization problem, where we attempt to simultaneously minimize the parasitic X-port input resistance (R-X) and maximize the high end cut-off frequency of the current signal (f(ci)). The results have been presented for a large selection of bias currents (I-O) and our proposed algorithm could largely outperform a similar algorithm, recently proposed, employing particle swarm optimization (PSO) algorithm and also the differential evolution (DE) algorithm.

• 出版日期2010-10