Thermal aware energy efficient comparator design using LVMOS IO standards on 28nm FPGA

摘要

In this work, our main concern is thermal aware design on 28nm technology based Artix-7 FPGA. Thermal aware means, this design is able to operate in both extreme and normal temperature. LVCMOS (Low voltage Complementary Metal Oxide Semiconductor) is used as IO Standard. Using LVCMOS18, there is 93.03%, 66.58%, and 33.55% reduction in junction temperature, when we scale down ambient temperature from 75 °C to 5 °C, 25 °C and 50 °C respectively. Using LVCMOS25, there is 64.45%, 59.71% and 44.07% reduction in leakage power, when we scale down ambient temperature from 75 °C to 5 °C, 25 °C and 50 °C respectively. In this paper, we have taken two different airflows. Linear Feet per Minute (LFM) is unit of airflow (distance traveled per unit of time). It is either 250 or 500 LFM for the Artix-7 FPGA. TJA is Theta Junction to Ambient (° C/W), Thermal power, TJC (Theta Junction to Case thermal resistance), TCS (Theta Case to hit Sink thermal resistance) and TSA (Theta Sink to Ambient thermal resistance) is also under consideration.