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C. J. Lukas, Yahya, F. B., and Calhoun, B. H., An Ultra-low Power System On Chip Enabling DVS with SR Level Shifting Latches, in IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy, 2018.
C. J. Lukas, Yahya, F. B., and Calhoun, B. H., Modeling Trans-threshold Correlations for Reducing Functional Test Time in Ultra-Low Power Systems, in 2017 IEEE International Test Conference (ITC), Fort Worth, TX, USA, 2017.
C. J. Lukas, Yahya, F. B., Breiholz, J., Roy, A., Chen, X., Patel, H. N., Liu, N. X., Kosari, A., Li, S., Kamakshi, D. Akella, Ayorinde, O., Wentzloff, D. D., and Calhoun, B. H., A 1.02 μW Battery-Less, Continuous Sensing and Post-Processing SiP for Wearable Applications, IEEE Transactions on Biomedical Circuits and Systems, 2019.PDF icon 08625544.pdf (3.22 MB)
C. J. Lukas and Calhoun, B. H., A 0.38 pJ/bit 1.24 nW Chip-to-Chip Serial Link for Ultra-Low Power Systems, in International Symposium on Circuits and Systems (ISCAS), Lisbon, 2015.
P. Long, Huang, J. Z., Povolotskyi, M., Verreck, D., Charles, J., Kubis, T., Klimeck, G., Rodwell, M. J. W., and Calhoun, B. H., A Tunnel FET Design for High-Current, 120 mV Operation, in IEDM, 2016.
X. Liu, Kamineni, S., Breiholz, J., Calhoun, B. H., and Li, S., A 194nW Energy-Performance Aware IoT SoC Employing a 5.2nW 92.6% Peak Efficiency Power Management Unit for System Performance Scaling, Fast DVFS, and Energy Minimization, in 2022 IEEE International Solid-State Circuits Conference (ISSCC), In Press.
N. Liu and Calhoun, B. H., Design Optimization of Register File Throughput and Energy using a Virtual Prototyping (ViPro) Tool, in IEEE Computer Society Annual Symposium on VLSI (ISVLSI), 2016.
N. X. Liu, Agarwala, R., Dissanayake, A., Truesdell, D. S., Kamineni, S., Chen, X., Wentzloff, D. D., and Calhoun, B. H., A 2.5 ppm/°C 1.05 MHz Relaxation Oscillator with Dynamic Frequency-Error Compensation and 8 µs Start-Up Time, in IEEE European Solid-State Circuits Conference (ESSCIRC), Dresden, Germany, 2018.
X. Liu, Li, S., and Calhoun, B. H., An 802pW 93% Peak Efficiency Buck Converter with 5.5×106 Dynamic Range Featuring Fast DVFS and Asynchronous Load-Transient Control, in 2021 IEEE European Solid-State Circuits Conference (ESSCIRC), 2021.PDF icon An 802pW 93% Peak Efficiency Buck Converter with 5.5×106 Dynamic Range Featuring Fast DVFS and Asynchronous Load-Transient Control.pdf (580.42 KB)
N. X. Liu, Agarwala, R., Dissanayake, A., Truesdell, D. S., Kamineni, S., and Calhoun, B. H., A 2.5 ppm/°C 1.05 MHz Relaxation Oscillator with Dynamic Frequency-Error Compensation and Fast Start-Up Time, IEEE Journal of Solid-State Circuits (JSSC), 2019.
S. Li and Calhoun, B. H., A 745pA Hybrid Asynchronous Binary-Searching and Synchronous Linear-Searching Digital LDO with 3.8×105 Dynamic Load Range, 99.99% Current Efficiency, and 2mV Output Voltage Ripple, in IEEE International Solid- State Circuits Conference (ISSCC), San Francisco, CA, 2019.
S. Li, Roy, A., and Calhoun, B. H., A Piezoelectric Energy-Harvesting System with Parallel-SSHI Rectifier and Integrated Maximum-Power-Point Tracking, IEEE Solid-State Circuits Letters (SSCL), Special Issue on VLSI (invited paper), 2019.
S. Li, Liu, X., and Calhoun, B. H., A 32nA Fully Autonomous Multi-Input Single-Inductor Multi-Output Energy Harvesting and Power Management Platform with 1.2×10^5 Dynamic Range, Integrated MPPT, and Multi-Modal Cold Start-Up, in 2022 IEEE International Solid-State Circuits Conference (ISSCC), In Press.
S. Li and Calhoun, B. H., Sub-microAmp Energy Harvesting and Power Management Units for Self-Powered IoT SoCs: Analog vs. Digital Implementations, in 2020 IEEE Custom Integrated Circuits Conference (CICC), (invited paper), 2020.
S. Li, Roy, A., and Calhoun, B. H., A Piezoelectric Energy-Harvesting System with Parallel-SSHI Rectifier and Integrated MPPT Achieving 417% Energy-Extraction Improvement and 97% Tracking Efficiency, in 2019 Symposium on VLSI Circuits, Kyoto, Japan, 2019.
S. Li, Breiholz, J., Kamineni, S., Im, J., Wentzloff, D. D., and Calhoun, B. H., An 85 nW IoT Node-Controlling SoC for MELs Power-Mode Management and Phantom Energy Reduction, in 2020 IEEE International Symposium on Circuits and Systems (ISCAS), 2020.