A 16 Gbps 10:1 Serializer with Active Inductor Based CTLE for High Frequency Boosting

This paper presents a half-rate 8–16 Gbps 10:1 serializer with an active inductive-peaking, capacitive-degeneration (AIPCD) based continuous-time linear equalizer (CTLE) for a SerDes system. The serializer uses an efficient 5:1 multiplexer, which also serves as a generic template for a 5*N:1 serializer. The transmitter receives ten low speed 0.8/1.6 Gbps parallel PRBS-31 bit sequences and outputs a high-speed 8/16 Gbps serial data signal. The AIPCD-CTLE presented in this work outputs good discernible eye-opening for up to 18 dB of channel loss at the Nyquist frequency, which can obviate the requirement of a feedforward equalizer. Implemented in CMOS 65 nm technology, for the output data rate of 16 Gbps, the transmitter achieves a 0.33UIPP eye width at a BER of 10−12, and 16.59 dB channel loss at the Nyquist frequency with 90 mW of power consumption.