A 400 Mbps radiation hardened by design LVDS compliant driver and receiver

A Radiation Hardened By Design (RHBD) LVDS driver and receiver are designed and simulated in a standard 150 nm CMOS technology. The driver and receiver can reach data rates up to 400 Mbps, with respective power consumptions of 15 mW and 12.5 mW from a single 3.3 V power supply. The driver makes use of a standard H-bridge topology, while the receiver consists of the cascade of two stages, a preamplifier and a positive feedback comparator. RHBD is implemented using ELT transistors for Total Ionizing Dose (TID) effects mitigation up to 300 krad and guard-rings to minimize the probability of a Single Event Latchup (SEL). The final test chip contains two drivers and two receivers, with their relative bandgap circuitries, and it has an overall area of 1.913 mm
²
. Post layout simulation results show complete compatibility of the driver and the receiver with the LVDS standard.