NORTH ATLANTIC UNIVERSITY UNION
Monolithic filters can be implemented using several circuit techniques: AO-RC, MOSFET-C, switched-C, Gm-C and digital. All these circuit techniques have advantages and disadvantages, so the different characteristics of each defines its application niches and the new technologies generally emphasize the limits of these techniques in their applications areas. So, in the modern sub-micron technology the Gm-C filters can be operated over the entire VHF/UHF range. Generally, the Gm-C integrators are very fast, because an open-loop trans-conductance amplifier drives the capacitive load.