Profile

Abhishek Pullela is a fourth-year undergraduate research student at IIIT Hyderabad, working under the guidance of Dr. Zia Abbas. His work is mostly inclined towards developing ultra-low power blocks and recently he modeled the temperature dependency of gate-leakage in thin oxide devices and used it for developing a pico-watt current reference. It is the first pico-watt block that consumes constant power w.r.t temperature. As a design intern at Bluesemi Research and Development, he designed a high-efficiency CMOS rectifier with low reverse leakage, a DC limiter, and a low-power LDO for RF energy harvesting. Apart from these blocks, he also designed a nano-watt op-amp, voltage reference, and a current reference. As future work, he is developing a pico-watt bandgap reference, temperature to digital converter, and capacitance to digital converter. Currently, he is a part of a long-term project on the design of a low-power system powered by energy harvesters in collaboration with the University of Pittsburgh under Dr.Inhee Lee. He is also a part of another long-term project called self-healing analog circuits where they calibrate the process variations in analog circuits using ML models.