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Conference Paper
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)
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.
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.
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, 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)
D. S. Truesdell and Calhoun, B. H., A 640 pW 22 pJ/sample Gate Leakage-Based Digital CMOS Temperature Sensor with 0.25°C Resolution, in IEEE Custom Integrated Circuits Conference (CICC) 2019, Austin, TX, 2019.PDF icon A 640 pW 22 pJ_sample Gate Leakage-Based Digital CMOS Temperature Sensor with 0.25C Resolution.pdf (1.81 MB)
S. Gupta, Truesdell, D. S., and Calhoun, B. H., A 65nm 16kb SRAM with 131.5pW Leakage at 0.9V for Wireless IoT Sensor Nodes, in 2020 IEEE Symposium on VLSI Circuits (VLSI), 2020.PDF icon A 65nm 16kb SRAM with 131.5pW Leakage at 0.9V for Wireless IoT Sensor Nodes.pdf (935.56 KB)
X. Liu, Agrawal, A., Tanaka, A., and Calhoun, B. H., A 6nA Fully-Autonomous Triple-Input Hybrid-Inductor-Capacitor Multi-Output Power Management System with Multi-Rail Energy Sharing, All-Rail Cold Startup, and Adaptive Conversion Control for mm-scale Distributed Systems, in 2024 IEEE International Solid-State Circuits Conference (ISSCC), 2024.PDF icon A_6nA_Fully Autonomous_Triple-Input_Hybrid-Inductor-Capacitor_Multi-Output_Power_Management_System_with_Multi-Rail_Energy_Sharing_All-Rail_Cold_Startup_and_Adaptive_Conve.pdf (1.55 MB)
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. Z. Ahmed, Tan, Y., Truesdell, D. S., and Ghosh, A., Auger Effect Limited Performance in Tunnel Field Effect Transistors, in 5th Berkeley Symposium on Energy Efficient Electronics & Steep Transistors Workshop, Berkeley, CA, 2017.
S. Z. Ahmed, Tan, Y., Truesdell, D. S., and Ghosh, A., Auger Effect Limited Performance in Tunnel Field Effect Transistors, in 5th Berkeley Symposium on Energy Efficient Electronics & Steep Transistors Workshop, Berkeley, CA, 2017.
D. S. Truesdell and Calhoun, B. H., Channel Length Sizing for Power Minimization in Leakage-Dominated Digital Circuits, in IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S), 2018.
A. Alghaihab, Chen, X., Shi, Y., Truesdell, D. S., Calhoun, B. H., and Wentzloff, D. D., A Crystal-Less BLE Transmitter with -86dBm Frequency-Hopping Back-Channel WRX and Over-the-Air Clock Recovery from a GFSK-Modulated BLE Packet, in 2020 IEEE International Solid-State Circuits Conference (ISSCC), 2020.
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.
A. Mallick, Bashar, M. Khairul, Truesdell, D. S., Calhoun, B. H., Joshi, S., and Shukla, N., Graph Coloring using Coupled Oscillator-based Dynamical Systems, in 2021 IEEE International Symposium on Circuits and Systems (ISCAS), 2021.
D. S. Truesdell and Calhoun, B. H., Improving Dynamic Leakage Suppression Logic with Forward Body Bias in 65nm CMOS, in IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S), 2019.
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)
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), 2023.PDF icon 15.1_A_Self-Powered_SoC_with_Distributed_Cooperative_Energy_Harvesting_and_Multi-Chip_Power_Management_for_System-in-Fiber.pdf (1.51 MB)
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.
Journal Article
D. S. Truesdell, Li, S., and Calhoun, B. H., A 0.5V 560-kHz 18.8-fJ/Cycle On-Chip Oscillator with 96.1-ppm/°C Steady-State Stability Using a Duty-Cycled Digital Frequency-Locked Loop, IEEE Journal of Solid-State Circuits, 2021.PDF icon A 0.5-V 560-kHz 18.8-fJ_Cycle On-Chip Oscillator With 96.1ppm_C Steady-State Stability Using a Duty-Cycled Digital Frequency-Locked Loop.pdf (2.95 MB)
D. S. Truesdell, Dissanayake, A., and Calhoun, B. H., A 0.6-V 44.6-fJ/Cycle Energy-Optimized Frequency-Locked Loop in 65-nm CMOS With 20.3-ppm/°C Stability, IEEE Solid-State Circuits Letters (SSCL), 2019.PDF icon A 0.6-V 44.6-fJ Cycle Energy-Optimized Frequency-Locked Loop in 65-nm CMOS With 20.3-ppm C Stability.pdf (1.64 MB)
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. Z. Ahmed, Truesdell, D. S., Tan, Y., Calhoun, B. H., and Ghosh, A. W., A comprehensive analysis of Auger generation impacted planar Tunnel FETs, Solid-State Electronics, 2020.
S. Z. Ahmed, Truesdell, D. S., Tan, Y., Calhoun, B. H., and Ghosh, A. W., A comprehensive analysis of Auger generation impacted planar Tunnel FETs, Solid-State Electronics, 2020.

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