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A. D. Kamakshi, Shrivastava, A., and Calhoun, B. H., “A 0.2 V, 23 nW CMOS Temperature Sensor for Ultra-Low-Power IoT Applications”, J. Low Power Electron. Appl. (JLPEA), vol. 6, 2016.

A. Kosari, Breiholz, J., Liu, N. X., Calhoun, B. H., and Wentzloff, D. D., “A 0.5 V 68 nW ECG Monitoring Analog Front-End for Arrhythmia Diagnosis”, Journal of Low Power Electronics and Applications (JLPEA), 2018.

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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.

08625544.pdf (3.22 MB)

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.

08625544.pdf (3.22 MB)

A. Shrivastava, Roberts, N. E., Khan, O. U., Wentzloff, D. D., and Calhoun, B. H., “A 10mV-Input Boost Converter with Inductor Peak Current Control and Zero Detection for Thermoelectric and Solar Energy Harvesting with 220mV Cold-Start and -14.5dBm, 915MHz RF Kick-Start”, IEEE Journal of Solid-State Circuits (JSSC), vol. 50, pp. 1820-1832, 2015.

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.

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 IEEE International Solid-State Circuits Conference (ISSCC), 2022.

A 194nW Energy-Performance-Aware IoT SoC Employing a 5.2nW 92.6% Peak Efficiency Power Management Unit for System Performance Scaling, Fa.pdf (4.4 MB)

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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.

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.

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K. Craig, Shakhsheer, Y., Arrabi, S., Khanna, S., Lach, J., and Calhoun, B. H., “A 32b 90nm Processor Implementing Panoptic DVS Achieving Energy Efficient Operation from Sub-threshold to High Performance”, Journal of Solid State Circuits, 2014.

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.

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)

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X. Chen, Breiholz, J., Yahya, F. B., Lukas, C. J., Kim, H. - S., Calhoun, B. H., and Wentzloff, D. D., “A 486 µW All-Digital Bluetooth Low Energy Transmitter with Ring Oscillator Based ADPLL for IoT applications”, in IEEE Radio Frequency Integrated Circuits Symposium (RFIC), 2018.

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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.

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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. Roy, Klinefelter, A., Yahya, F., Chen, X., Gonzalez, P., Lukas, C. J., Akella, D., Boley, J., Craig, K., Faisal, M., Oh, S., Roberts, N., Shakhsheer, Y., Shrivastava, A., Vasudevan, D., Wentzloff, D. D., and Calhoun, B., “A 6.45μW Self-Powered SoC with Integrated Energy-Harvesting Power Management and ULP Asymmetric Radios for Portable Biomedical Systems”, IEEE Transactions on Biomedical Circuits and Systems, vol. 9, pp. 862-874, 2015.

D. S. Truesdell, Breiholz, J., Kamineni, S., Liu, N. X., Magyar, A., and Calhoun, B. H., “A 6–140-nW 11 Hz–8.2-kHz DVFS RISC-V Microprocessor Using Scalable Dynamic Leakage-Suppression Logic”, IEEE Solid-State Circuits Letters (SSCL), 2019.

A 6–140-nW 11 Hz–8.2-kHz DVFS RISC-V Microprocessor Using Scalable Dynamic Leakage-Suppression Logic (1.63 MB)

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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.

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Y. Shakhsheer, Khanna, S., Craig, K., Arrabi, S., Lach, J., and Calhoun, B. H., “A 90nm Data Flow Processor Demonstrating Fine Grained DVS for Energy Efficient Operation from 0.25V to 1.2V”, in Custom Integrated Circuits Conference, San Jose, 2011.

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X. Chen, Breiholz, J., Yahya, F. B., Lukas, C. J., Kim, H. - S., Calhoun, B. H., and Wentzloff, D. D., “Analysis and Design of an Ultra-Low-Power Bluetooth Low-Energy Transmitter With Ring Oscillator-Based ADPLL and 4 Frequency Edge Combiner”, IEEE Journal of Solid-State Circuits, 2019.

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.

S. Kamineni, Sharma, A., Harjani, R., Sapatnekar, S. S., and Calhoun, B. H., “AuxcellGen: A Framework for Autonomous Generation of Analog and Memory Unit Cells”, in Design, Automation and Test in Europe Conference (DATE), 2023, 2023.

AuxcellGen-A Framework for Autonomous Generation of Analog and Memory Unit Cells.pdf (3.37 MB)

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Y. Zhang, Zhang, F., Shakhsheer, Y., Silver, J. D., Klinefelter, A., Nagaraju, M., Boley, J., Pandey, J., Shrivastava, A., Carlson, E. J., Wood, A., Calhoun, B. H., and Otis, B. P., “A Batteryless 19 uW MICS/ISM-Band Energy Harvesting Body Sensor Node SoC for ExG Applications”, Journal of Solid State Circuits, vol. 48, pp. 199-213, 2013.

F. Zhang, Zhang, Y., Silver, J., Shakhsheer, Y., Nagaraju, M., Klinefelter, A., Pandey, J., Boley, J., Carlson, E., Shrivastava, A., Otis, B., and Calhoun, B., “A Batteryless 19uW MICS/ISM-Band Energy Harvesting Body Area Sensor Node SoC”, in ISSCC, San Francisco, 2012.

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.

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A. Alghaihab, Shi, Y., Breiholz, J., Kim, H. - S., Calhoun, B. H., and Wentzloff, D. D., “Enhanced Interference Rejection Bluetooth Low-Energy Back-Channel Receiver With LO Frequency Hopping”, IEEE Journal of Solid-State Circuits, 2019.

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