A 0.18 m CMOS 3rd-Order Digitally Programmable Gm-C Filter for VHF Applications
Aranzazu Otin · IEICE Transactions on Information and Systems · 2005
In this paper we report a 3rd-order Gm-C filter based on pseudo-differential continuous-time transconductors for applications in low-voltage systems over VHF range. By using a 0.18 μm pure digital CMOS process, a prototype low pass filter with -3 dB frequency programmable from 38 MHz to 213 MHz confirms the feasibility of the proposed filter in applications such as data storage systems.