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Conference Paper
S. Li, Liu, X., and Calhoun, B. H., A 956pW Switched-Capacitor Sub-Bandgap Reference with 0.44-to-3.3V Supply Range, -67dB PSRR, and 0.2% within-Wafer Inaccuracy for Nanowatt IoT Systems, in 2022 IEEE European Solid-State Circuits Conference (ESSCIRC), 2022.
S. Li, Liu, X., and Calhoun, B. H., A 956pW Switched-Capacitor Sub-Bandgap Reference with 0.44-to-3.3V Supply Range, -67dB PSRR, and 0.2% within-Wafer Inaccuracy for Nanowatt IoT Systems, in 2022 IEEE European Solid-State Circuits Conference (ESSCIRC), 2022.
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.
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.
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.
A. Shrivastava, Lach, J., and Calhoun, B., A Charge Pump Based Receiver Circuit for a Voltage Scaled Interconnect, in International Symposium on Low Power Electronics and Design, 2012.
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.
M. Guevara, Marino, M. D., Meng, J., Satyamoorthy, P., Szafaryn, L. G., Wu, P., Meyer, B., Skadron, K., Lach, J., and Calhoun, B. H., Exploiting Dynamically Changing Parallelism with a Reconfigurable Array of Homogeneous Sub-cores, in TECHCON, 2010.
F. B. Yahya, Lukas, C. J., and Calhoun, B. H., FAR: A 4.12uW Ferro-electric Auto-Recovery for Battery-less BSN SoCs, in 2017 IEEE Biomedical Circuits and Systems Conference (BioCAS), Turin, Italy, 2017.
P. Sotiriadis, Franza, O., Bailey, D., Calhoun, B., Lin, D., and Chandrakasan, A., Fast Algorithm for Clock Grid Simulation, in European Solid State Circuits Conference (ESSCIRC), 2002, pp. 771-774.
H. L. Bishop, Wang, P., Fan, D., Lach, J., and Calhoun, B. H., Lighting IoT Test Environment (LITE) Platform: Evaluating Light-Powered, Energy HarvestingEmbedded Systems, in Global Internet of Things Summit (GIoTS), 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.
D. S. Truesdell, Liu, X., Breiholz, J., Gupta, S., Li, S., and Calhoun, B. H., NanoWattch: A Self-Powered 3-nW RISC-V SoC Operable from 160mV Photovoltaic Input with Integrated Temperature Sensing and Adaptive Performance Scaling, in 2022 IEEE Symposium on VLSI Circuits (VLSI), (Equally-Credited Authors), 2022.PDF icon NanoWattch A Self-Powered 3-nW RISC-V SoC Operable from 160mV Photovoltaic Input with Integrated Temperature Sensing and Adaptive Performance Scaling.pdf (11.11 MB)
D. S. Truesdell, Liu, X., Breiholz, J., Gupta, S., Li, S., and Calhoun, B. H., NanoWattch: A Self-Powered 3-nW RISC-V SoC Operable from 160mV Photovoltaic Input with Integrated Temperature Sensing and Adaptive Performance Scaling, in 2022 IEEE Symposium on VLSI Circuits (VLSI), (Equally-Credited Authors), 2022.PDF icon NanoWattch A Self-Powered 3-nW RISC-V SoC Operable from 160mV Photovoltaic Input with Integrated Temperature Sensing and Adaptive Performance Scaling.pdf (11.11 MB)
M. Putic, Di, L., Calhoun, B. H., and Lach, andJohn, Panoptic DVS: A Fine-Grained Dynamic Voltage Scaling Framework for Energy Scalable CMOS Design, in International Conference on Computer Design (ICCD), 2009, pp. 491-497.
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.
L. Di, Putic, M., Lach, J., and Calhoun, B. H., Power Switch Characterization for Fine-Grained Dynamic Voltage Scaling, in International Conference on Computer Design, pages 605-611, 2008.
K. Craig, Shakhsheer, Y., Khanna, S., Arrabi, S., Lach, J., Calhoun, B. H., and Kosonocky, S., A Programmable Resistive Power Grid for Post-Fabrication Flexibility and Energy Tradeoffs, in International Symposium on Low Power Electronics and Design, 2012.
B. H. Meyer, Skadron, K., George, N., Calhoun, B. H., and Lach, J., Reducing the Cost of Redundant Execution in Safety-Critical Systems using Relaxed Dedication, in Design Automation and Test in Europe (DATE), 2011.
L. Szafaryn, Chen, J., Calhoun, B. H., Lach, J., Skadron, K., and Meyer, B. H., Reducing the Cost of Safety-Critical Systems with On-Demand Redundancy, in SRC Techcon, 2012.
B. H. Calhoun, Arrabi, S., Khanna, S., Shakhsheer, Y., Craig, K., Ryan, J., and Lach, J., REESES: Rapid Efficient Energy Scalable ElectronicS, in GOMAC Tech, 2010.
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 Self-Powered SoC with Distributed Cooperative Energy Harvesting and Multi-Chip Power Management for System-in-Fiber, in IEEE International Solid-State Circuits Conference (ISSCC), In Press.
S. Khanna, Craig, K., Shakhsheer, Y., Arrabi, S., Lach, J., and Calhoun, B., Stepped Supply Voltage Switching for Energy Constrained Systems, in ISQED, 2011.
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.
B. H. Calhoun, Zhang, Y., Khanna, S., Craig, K., Shakhsheer, Y., and Lach, J., A Sub-Threshold FPGA: Energy-Efficient Reconfigurable Logic, in GOMAC Tech, 2011.

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