A Burst-Mode TIA with Adaptive Response and Stable Operation for in-Vehicle Optical Networks

In-vehicle optical network systems have been studied eagerly for realizing self-driving cars. To provide a stable operation of the optical receiver in the system, we propose an appropriate-time-constant control circuit for a burst-mode transimpedance amplifier (TIA) which provides adaptive response in single-ended to differential conversion circuit in accordance with input-data patterns. We present operating principles, the design procedures, and the post-layout simulation results of the proposed circuit in 65-nm CMOS process. We verify the fast response within 4 ns and the high tolerance to consecutive identical digit length of 66 bits in the proposed circuit.