Genetical tuning of a capacitorless current-mode bandpass biquad based on single-stage CMOS OTA

A genetical tuning scheme, implemented in MATLAB with the cooperation of HSPICE, is utilized to tune a capacitorless current-mode bandpass biquad employing a simple plusmn1.5V single-stage CMOS OTA, which is based on the AMSpsilas 0.35 mu CMOS process. The abilities of biquad, indicating the feasibility of such requirements, are examine through the extreme bias conditions. The very complex estimation of a practical transfer function is no longer needed, as the fitness of each chromosome is calculated based on the frequency response generated by HSPICE. Therefore, if a feasible requirement is assigned, a quite errorless solution is likely to be obtained.