High-speed and low-power static frequency divider and decision circuit with 0.5-µm-emitter-width InP HBTs

A static frequency divider and decision circuit have been designed and fabricated in a 290-GHz-f_T InP HBT technology. The static frequency divider operates up to 70 GHz with core power consumption as low as 19.6 mW. The decision circuit, realized with a parallel-clock structure, achieves error-free operation up to 50 Gbps with power consumption of 142 mW. Both speed/power ratios are among the highest in over-50-GHz applications. These results demonstrate the suitability of this technology for high-speed and low-power applications.