Presented is a novel source-follower-based (SFB) bi-quad cell suitable for realizing continuous-time zero-pole type filters. Unlike the conventional SFB bi-quad cells that can only realize complex poles, additional complex zeros can be synthesized in the proposed one, by adding two feedforward capacitors. A 4-order Chebyshev II fully differential low-pass filter prototype was fabricated in a 0.18-μm CMOS process. The achieved bandwidth is 2.75 MHz with +5 dBm in-band IIP3 and -1 dB gain. The power consumption is 3 mV at a 2-V supply. ©2010 IEEE.