A 0.87-pJ/b 115-Gb/s $2^{\text {7}}$ -1 PRBS Generator in 130-nm SiGe:C BiCMOS Technology

A 27-1 pseudo-random bit sequence (PRBS) generator, implemented in a 130-nm SiGe:C BiCMOS technology with fT/fmax of 300/500 GHz, is presented. The generator uses a modified half-rate clock topology which enables it to operate at data rates up to 115 Gb/s with low power consumption. Time-domain measurements are performed to demonstrate the maximum data rate of the circuit, which delivers a differe...