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Conference Paper
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.
J. F. Ryan and Calhoun, B. H., Minimizing Offset for Latching Voltage-Mode Sense Amplifiers for Sub-threshold Operation, in International Symposium on Quality Electronic Design, 2008, pp. 127-132.
A. Roy and Calhoun, B., Exploring Circuit Robustness to Power Supply Variation in Low-Voltage Latch and Register-Based Digital Systems, in IEEE International Symposium on Circuits and Systems (ISCAS), Montreal, Canada, 2016.
A. Klinefelter, Ryan, J., Tschanz, J., and Calhoun, B. H., Error-Energy Analysis of Hardware Logarithmic Approximation Methods for Low Power Applications, in International Symposium on Circuits and Systems (ISCAS), 2015.
F. Yahya, Lukas, C. J., Breiholz, J., Roy, A., Patel, H. N., Liu, N. X., Chen, X., Kosari, A., Li, S., Akella, D., Ayorinde, O., Wentzloff, D. D., and Calhoun, B. H., A battery-less 507nW SoC with integrated platform power manager and SiP interfaces, in 2017 Symposium on VLSI Circuits, Kyoto, Japan, 2017.
J. F. Ryan, Wang, J., and Calhoun, B. H., Analyzing and Modeling Process Balance for Sub-threshold Circuit Design, in GLSVLSI, 2007, pp. 275-280.
J. F. Ryan, Khanna, S., and Calhoun, B. H., An Analytical Model for Performance Yield of Nanoscale SRAM Accounting for the Sense Amplifier Strobe Signal, in Internation Symposium on Lower Power Electronics and Design (ISLPED), 2011.
J. Moody, Bassirian, P., Roy, A., Feng, Y., Li, S., Costanzo, R., N. Barker, S., Calhoun, B. H., and Bowers, S. M., An 8.3 nW -72 dBm Event Driven IoE Wake Up Receiver RF Front End, in 2017 European Microwave Integrated Circuit Conference (EuMIC), Nuremberg, Germany, 2017.
J. Moody, Bassirian, P., Roy, A., Liu, N. X., Pancrazio, S., N. Barker, S., Calhoun, B. H., and Bowers, S. M., A -76dBm 7.4 nW wakeup radio with automatic offset compensation, in International Solid-State Circuits Conference (ISSCC), 2018.
A. Roy and Calhoun, B. H., A 71% Efficient Energy Harvesting and Power Management Unit for Sub-µW Power Biomedical Applications, in 2017 IEEE Biomedical Circuits and Systems Conference (BioCAS), Turin, Italy, 2017.
A. Klinefelter, Roberts, N., Shakhsheer, Y., Gonzalez, P., Shrivastava, A., Roy, A., Craig, K., Faisal, M., Boley, J., Oh, S., Zhang, Y., Akella, D., Wentzloff, D. D., and Calhoun, B., A 6.45 μW Self-Powered IoT SoC with Integrated Energy-Harvesting Power Management and ULP Asymmetric Radios, in ISSCC, San Francisco, CA, 2015.
A. Klinefelter, Roberts, N., Shakhsheer, Y., Gonzalez, P., Shrivastava, A., Roy, A., Craig, K., Faisal, M., Boley, J., Oh, S., Zhang, Y., Akella, D., Wentzloff, D. D., and Calhoun, B., A 6.45 μW Self-Powered IoT SoC with Integrated Energy-Harvesting Power Management and ULP Asymmetric Radios, in ISSCC, San Francisco, CA, 2015.
H. N. Patel, Roy, A., Yahya, F. B., Liu, N., Kumeno, K., Yasuda, M., Harada, A., Ema, T., and Calhoun, B. H., A 55nm Ultra Low Leakage Deeply Depleted Channel Technology Optimized for Energy Minimization in Subthreshold SRAM and Logic, in European Solid State Circuits Conference (ESSCIRC), 2016.
X. Liu, Truesdell, D. S., Faruqe, O., Parameswaran, L., Rickley, M., Kopanski, A., Cantley, L., Coon, A., Bernasconi, M., Wang, T., and Calhoun, B. H., A 33nW Fully Autonomous SoC with Distributed Cooperative Energy Harvesting and Multi-Chip Power Management for mm-scale System-in-Fiber, in IEEE Transactions on Biomedical Circuits and Systems, Invited paper, 2023.PDF icon A_33nW_Fully_Autonomous_SoC_with_Distributed_Cooperative_Energy_Harvesting_and_Multi-Chip_Power_Management_for_mm-scale_System-in-Fiber.pdf (16.09 MB)
A. Shrivastava, Craig, K., Roberts, N., Wentzloff, D. D., and Calhoun, B. H., A 32nW Bandgap Reference Voltage Operational from 0.5V Supply for Ultra-low Power Systems, in EEE International Solid-State Circuits Conference (ISSCC), 2015.
N. E. Roberts, Craig, K., Shrivastava, A., Wooters, S. N., Shakhsheer, Y., Calhoun, B. H., and Wentzloff, D. D., A 236nW -56.5dBm Sensitivity Self-Powered Bluetooth Low-Energy Wakeup Receiver in 65nm CMOS, in IEEE International Solid-State Circuits Conference (ISSCC), 2016.
A. Roy, Grossmann, P., Vitale, S., and Calhoun, B., A 1.3μW, 5pJ/cycle sub-threshold MSP430 processor in 90nm xLP FDSOI for energy-efficient IoT applications, in International Symposium on Quality Electronic Design (ISQED), Santa Clara, CA, 2016.
A. Shrivastava, Ramadass, Y. K., Khanna, S., Bartling, S., and Calhoun, B. H., A 1.2μW SIMO Energy Harvesting and Power Management Unit with Constant Peak Inductor Current Control Achieving 83-92% Efficiency Across Wide Input and Output Voltages, in Symposium on VLSI Circuits, 2014.

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