Novel structure of low-distortion fully-differential doubly-terminated ladder Gm-C filters

In this paper, a novel structure of fully-differential doubly-terminated ladder Gm-C filter is proposed. The proposed structure can be classified as another variation of the recently proposed alternative structure, which has much better linearity performance than the traditional Gm-C filter structure. Simulation results show that the proposed filter structure has better frequency response than the original alternative structure while both of them have the same noise performance and power consumption and comparable linearity performance.