Abstract

The improvement of linearity of the two-stage continuous time linear equalizer cir¬c¬u¬it located in the receiver of the high speed SER-DES data transmission system is presented. It allows to significantly increase the linearity of the system, which leads to an increase in the output working range of the circuit. A system controlled by a common mode of the input voltage has been introduced, which solves the problem of evenly changing currents in differential pairs. Simulation results show that in the worst case the proposed method incre¬a¬s¬es the linearity of the system by 35% due to the reduction of the amplification coefficient by 6%.

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