An 80 Mb/s adaptive DFE detector in 1 μm CMOS [hard-disk drives]

An analog DFE for disk drives using a mixed-signal integrator

“…Area and power are saved by using analog rather a digital equalizers because a 6-b high-speed ADC is not required and a small analog FE [2] can be used instead of a digital FE. The key component to realizing the analog DFE in a small area is a mixed-signal integrator.…”