Dynamic range optimization of continuous-time G/sub m/-C filters
Juan F. Fernandez-Bootello, Manuel Delgado‐Restituto, Angel Rodriguez-Vazquez · 2006
This paper presents a fast procedure for the system-level evaluation of noise and distortion in continuous-time G/sub m/-C filters. The presented approach is based on Volterra's series expansion and matrix algebra manipulation. This procedure has been integrated in a constrained optimization routine to improve the dynamic range of filters while keeping the area and power consumption at a minimum. A seventh-order, elliptic, G/sub m/-C low-pass filter, realized in a 0.18/spl mu/m CMOS technology, following the proposed procedure, demonstrates the suitability of the approach.