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2020
D. S. Truesdell, Li, S., and Calhoun, B. H., A 0.5V 560kHz 18.8fJ/Cycle Ultra-Low Energy Oscillator in 65nm CMOS with 96.1ppm/°C Stability Using a Duty-Cycled Digital Frequency-Locked Loop, in 2020 IEEE Symposium on VLSI Circuits (VLSI), 2020.PDF icon A 0.5V 560kHz 18.8fJ_Cycle Ultra-Low Energy Oscillator in 65nm CMOS with 96.1ppm_C Stability Using a Duty-Cycled Frequency-Locked Loop.pdf (2.67 MB)
A. Dissanayake, Moody, J., Bishop, H. L., Truesdell, D. S., Muhlbauer, H., Lu, R., Gao, A., Gong, S., Calhoun, B. H., and Bowers, S. M., A -108dBm Sensitivity, -28dB SIR, 130nW to 41μW, Digitally Reconfigurable Bit-Level Duty-Cycled Wakeup and Data Receiver, in IEEE Custom Integrated Circuits Conference (CICC), 2020.
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.
R. Agarwala, Wang, P., Tanneeru, A., Lee, B., Misra, V., and Calhoun, B. H., An 88.6nW Ozone Pollutant Sensing Interface IC with a 159 dB Dynamic Range, in ACM/IEEE International Symposium on Low Power Electronics and Design (ISLPED), 2020.
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.
P. Bassirian, Duvvuri, D., Truesdell, D. S., Liu, N. X., Calhoun, B. H., and Bowers, S. M., A Temperature-robust 27.6nW -65dBm Wakeup Receiver at 9.6GHz X Band, in 2020 IEEE International Solid-State Circuits Conference (ISSCC), 2020.
2019
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, 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, 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)
J. Moody, Dissanayake, A., Bishop, H., Lu, R., Liu, N. X., Duvvuri, D., Gao, A., Truesdell, D. S., N. Barker, S., Gong, S., Calhoun, B. H., and Bowers, S. M., A -106dBm 33nW Bit-Level Duty-Cycled Tuned RF Wake-up Receiver, in 2019 Symposium on VLSI Circuits, Kyoto, Japan, 2019.
J. Moody, Dissanayake, A., Bishop, H., Lu, R., Liu, N. X., Duvvuri, D., Gao, A., Truesdell, D. S., N. Barker, S., Gong, S., Calhoun, B. H., and Bowers, S. M., A -106dBm 33nW Bit-Level Duty-Cycled Tuned RF Wake-up Receiver, in 2019 Symposium on VLSI Circuits, Kyoto, Japan, 2019.
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.
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.PDF icon A 6–140-nW 11 Hz–8.2-kHz DVFS RISC-V Microprocessor Using Scalable Dynamic Leakage-Suppression Logic (1.63 MB)
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.
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. Moody, Dissanayake, A., Bishop, H. L., Lu, R., Liu, N. X., Duvvuri, D., Gao, A., Truesdell, D. S., N. Barker, S., Gong, S., Calhoun, B. H., and Bowers, S. M., A Highly Re-configurable Bit-level Duty Cycled TRF Receiver Achieving -106 dBm Sensitivity and 33 nW Average Power Consumption, IEEE Solid-State Circuits Letters (SSCL), Special Issue on VLSI (invited paper), 2019.
J. Moody, Dissanayake, A., Bishop, H. L., Lu, R., Liu, N. X., Duvvuri, D., Gao, A., Truesdell, D. S., N. Barker, S., Gong, S., Calhoun, B. H., and Bowers, S. M., A Highly Re-configurable Bit-level Duty Cycled TRF Receiver Achieving -106 dBm Sensitivity and 33 nW Average Power Consumption, IEEE Solid-State Circuits Letters (SSCL), Special Issue on VLSI (invited paper), 2019.
J. Moody, Bassirian, P., Roy, A., Liu, N. X., N Barker, S., Calhoun, B. H., and Bowers, S. M., Interference Robust Detector-First Near-Zero Power Wake-Up Receiver, IEEE Journal of Solid-State Circuits, 2019.
P. Bassirian, Moody, J., Lu, R., Gao, A., Manzaneque, T., Roy, A., N Barker, S., Calhoun, B. H., Gong, S., and Bowers, S. M., Nanowatt-Level Wakeup Receiver Front Ends Using MEMS Resonators for Impedance Transformation, IEEE Transactions on Microwave Theory and Techniques, 2019.
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, 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.

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