An adaptive line-equalizer has been developed for 100Mb/sec Fast Ethernet data communication. For a 100m CAT3 UTP cable the output jitter is 2nsec while for that of a 125m CATS UTP cable it is 2.8nsec. The device is fabricated in 0.4 mu digital CMOS process where it consumes 65mW from a 3.3V power supply.