A 100MHz partial analog adaptive equalizer for use in wired data transmission

This paper describes a 3 volt partial analog adaptive equalizer that is intended to be used with a digital decision feedback equalizer (DFE). The analog filter was realized in a 0.5µm CMOS process and has a bandwidth of 100MHz while consuming 23mW of power. It has one tuning parameter and eliminates precursor intersymbol interference in a 311 Mbits/second system encoded as a 4-level PAM signal over 0 to 300 meters of coaxial cable.