Aatmesh Shrivastava. December Forsyth Street, Boston, MA, 02115

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1 CURRICULUM VITAE Aatmesh Shrivastava December 2016 PERSONAL DATA Office Address: 424 Dana Research Center 110 Forsyth Street, Boston, MA, Home Address: 255 Northampton Street #501 Boston, MA, Phone: Website: EDUCATION Ph.D. in Electrical Engineering, University of Virginia, Charlottesville, VA, January 2014 Thesis: Mixed Signal Platform Circuits for Lifetime Improvement of Ultra Low Power Systems Advisor: Professor Benton H. Calhoun Bachelor of Engineering in Electronics and Communication Engineering, Birla Institute of Technology, Mesra, Ranchi, India, May 2006 WORK EXPERIENCE Present Position Assistant Professor, Northeastern University, Boston, MA Employment History August March 2014-March 2016: January 2010-June 2010: July 2006-January 2010: Assistant Professor, Northeastern University, Boston, MA Senior Design Director, PsiKick Inc., Charlottesville, VA Senior Design Engineer, Texas Instruments, Bangalore, India Design Engineer, Texas Instruments, Bangalore, India

2 PUBLICATIONS Journals 1. D. Akella Kamakshi, A Shrivastava, and BH Calhoun, A 0.2 V, 23 nw CMOS Temperature Sensor for Ultra-Low-Power IoT Applications, Journal of Low Power Electronics and Applications, (JLPEA), June D Akella Kamakshi, A Shrivastava, and BH Calhoun, A 36 nw 7 ppm/ C on-chip Clock Source Platform for Near-Human-Body Temperature Applications, Journal of Low Power Electronics and Applications, (JLPEA), May A. Shrivastava, D. Akella, and B. H. Calhoun, A 1.5nW, kHz XTAL Oscillator Operational from 0.3V Supply IEEE Journal of Solid-State Circuits (JSSC- March 2016). 4. Y. Huang, A. Shrivastava, and B. H. Calhoun, A Design and Theoretical Analysis of a 145mV to 1.2V Single-Ended Level Converter Circuit for Ultra-Low Power Low Voltage ICs, Journal of Low Power Electronics and Applications, (JLPEA), March A. Shrivastava, N. E. Roberts, O. U. Khan, D. D. Wentzloff, and B. H. Calhoun, 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), August 2015 (Invited paper to the special issue on Custom Integrated Circuits Conference 2014). 6. A. Roy, A. Klinefelter, F. B. Yahya, X. Chen, P. Gonzalez, D. Akella, J. Boley, K. Craig, M. Faisal, S. Oh, N. E. Roberts, Y. Shakhsheer, A. Shrivastava, D. Vasudevan, D. D. Wentzloff, and B. H. Calhoun, 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. (TBioCAS), (Invited paper to the special issue on International Solid State Circuits Conference 2015). 7. A. Shrivastava, B. H. Calhoun, A DC-DC Converter Efficiency Model for System Level Analysis in Ultra Low Power Applications Journal of Low Power Electronics and Applications (JLPEA), Vol. 3, No. 3, June 2013, pgs Y. Zhang, F. Zhang, Y. Shakhsheer, J. D. Silver, A. Klinefelter, M. Nagaraju, J. Boley, J. Pandey, A. Shrivastava, E. J. Carlson, Austin Wood, Benton H. Calhoun, Brian P. Otis, "A Batteryless 19 µw MICS/ISM-Band Energy Harvesting Body Sensor Node SoC for ExG Applications", IEEE Journal of Solid-State Circuits (JSSC), Vol. 48, No. 1, January 2013, pgs Conference Papers 9. N. E. Roberts, K. Craig, A. Shrivastava, S. Wooters, Y. Shaksheer, D. Wentzloff, and B. H. Calhoun, A 236nW -56.5dBm Sensitivity Bluetooth Low-Energy Wakeup Receiver with Energy Harvesting in 65nm CMOS, IEEE Solid-State Circuits Conference (ISSCC), February Y. Shakhsheer, A. Shrivastava, N. Roberts, K. Craig, S. Wooters, D. D. Wentzloff, and B. H. Calhoun, Ultra Low Power Circuits and Systems for Self-Powered Wireless Sensors, GOMACTech, A. Shrivastava, K. Craig, N. E. Roberts, D. Wentzloff, and B. H. Calhoun, A 32nW Bandgap Reference Voltage Operational from 0.5V Supply for Ultra-low Power Systems, IEEE Solid-State Circuits Conference (ISSCC), February A. Klinefelter, N. E. Roberts, Y. Shakhsheer, P. Gonzalez, A. Shrivastava, A. Roy, K. Craig, M. Faisal, J. Boley, S. Oh, Y. Zhang, D. Akella, D. Wentzloff, B.H. Calhoun, A 6.45 μw Self-Powered IoT SoC with Integrated Energy-Harvesting Power Management and ULP Asymmetric Radios, IEEE Solid- State Circuits Conference (ISSCC), February A. Shrivastava, D. D. Wentzloff, and B. H. Calhoun, A 10mV-Input Boost Converter with Inductor Peak Current Control and Zero Detection for Thermoelectric Energy Harvesting IEEE Custom Integrated Circuits Conference (CICC), September 2014.

3 14. A. Shrivastava, Y. K. Ramadass, S. Khanna, S. Bartling, and B. H. Calhoun, A 1.2µW SIMO Energy Harvesting and Power Management Unit with Constant Peak Inductor Current Control Achieving 84-92% Efficiency Across Wide Input and Output Voltages, IEEE Symposiun on VLSI Circuits (VLSI Symp.) June A. Shrivastava, J. Pandey, B. Otis, and B. H. Calhoun, A 50nW, 100kbps Clock/Data Recovery Circuit in an FSK RF Receiver on a Body Sensor Node, IEEE International Conference on VLSI Design Conference A. Shrivastava, Y. K. Ramadass, S. Bartling, and B. H. Calhoun, Single Inductor Energy Harvesting and Power Management Circuit for Body Sensor Nodes IEEE Solid State Circuits Conference (ISSCC) Student Research Preview (SRP), February A. Shrivastava, and B. H. Calhoun, "A 150nW, 5ppm/ o C, 100kHz On-Chip Clock Source for Ultra Low Power SoCs", IEEE Custom Integrated Circuits Conference (CICC), September A. Shrivastava, J. Lach, B. H. Calhoun, A Charge Pump Based Receiver Circuit for a Voltage Scaled Interconnect IEEE International Symposium on Low Power Electronics and Design (ISLPED), July F. Zhang, Y. Zhang, J. Silver, Y. Shakhsheer, M. Nagaraju, A. Klinefelter, J. Pandey, J. Boley, E. Carlson, A. Shrivastava, B. Otis, B. H. Calhoun, A Batteryless 19µW MICS/ISM-Band Energy Harvesting Body Area Sensor Node SoC IEEE Solid-State Circuits Conference (ISSCC), February A. Shrivastava, and B. H. Calhoun, Modeling DC-DC Converter Efficiency and Power Management in Ultra Low Power Systems, IEEE Sub-Threshold Conference (Sub-vt), September A. Shrivastava, and B. H. Calhoun, A sub-threshold clock and data recovery circuit for a wireless sensor node, MIT Sub-threshold Conference, October K. Rajagopal, A. Shrivastava, V. Menezes, An enhanced topology for reliability of a High Performance 3.3V IO in a single well CMOS 1.8v-oxide Low voltage Process IEEE International Symposium on Quality Electronics and Design (ISQED), March Y. Huang, A. Shrivastava, and B. H. Calhoun, A 145mV to 1.2V Single Ended Level Converter Circuit for Ultra-Low Power Low Voltage ICs, SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S), September D. Akella, A. Shrivastava, and B. H. Calhoun, A 23 nw, 1.5/-1.7oC All-CMOS Ultra-Low Power Temperature Sensor Operational from 0.2 V, IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S), September Manuscripts in Preparation 25. A. Shrivastava, and B. H. Calhoun, A Single Inductor Multiple Output (SIMO) DC-DC Converter Circuit with 86% Peak Efficiency and Integrated Capacitance to Implement Low-Cost High Efficiency Block Level Dynamic Voltage Scaling 26. D. Akella, A. Shrivastava, C. Duan, and B. H. Calhoun, A Flexible On-Chip Clock-Source Platform for Ultra-Low-Power Systems with a maximum stability of 7 ppm/oc 27. A. Shrivastava, A. Roy, and B. H. Calhoun, A 95% Efficient Single-Inductor Multiple Output (SIMO) Buck-Boost DC-DC Converter Operational from 0.7 V Power Supply for Ultra-low Power Systems Patents (Issued) 1. Low input voltage boost converter with peak inductor current control and offset compensated zero detection, US- 9,490, Low voltage crystal oscillator (XTAL) driver with feedback controlled duty cycling for ultra low power, US-9,350,294.

4 3. Low input voltage boost converter with peak inductor current control and offset compensated zero detection, US-9,325, A. Shrivastava, Methods and apparatus for low input voltage bandgap reference architecture and circuits US-9,158, A. Shrivastava, and Y. Ramadass Apparatus and method for controlling inductor current in a switch mode power supply US-9,164, A. Shrivastava, and R. Yadav, Pulse generation circuits in integrated circuits US-8,797, A. Shrivastava, and R. Yadav, Power on reset generation circuits in integrated circuits US-8,680, A. Shrivastava, R. Yadav, and P. K. Rana, Fast start-up crystal oscillator US Patents (Pending) 9. B. H. Calhoun and A. Shrivastava, Methods and apparatus for a single inductor multiple output (SIMO) DC-DC converter circuits US Patent Application Number: A. Shrivastava, and R. Yadav, Power supply sensing circuits in integrated circuits US Patent Application Number: A. Shrivastava, Y. Ramadass, and S. Bartling Single inductor energy management and harvesting interface system and method US Patent Application Number: A. Shrivastava, Output buffer with improved output signal quality US Patent Application Number: B. H. Calhoun and A. Shrivastava, Low Input Voltage Boost Converter with Peak Inductor Current Control and Offset Compensated Zero Detection US Patent Application Number: B. H. Calhoun and A. Shrivastava, Low Voltage Crystal Oscillator (XTAL) Driver With Feedback Controlled Duty Cycling For Ultra Low Power US Patent Application Number: B. H. Calhoun and A. Shrivastava, Low power clock source US Patent Application Number: WO K. Rajagopal and A. Shrivastava, Providing Higher-Swing Output Signals When Components Of An Integrated Circuit Are Fabricated Using A Lower-Voltage Process US Patent Application Number: WO HONORS and AWARDS Charles L. Brown Graduate Fellowship for Excellence, Electrical Engineering, University of Virginia, Louis T. Rader Graduate Research Award Electrical Engineering, University of Virginia, Paul Voigt Graduate Teaching Fellowship School of Engineering and Applied Sciences, University of Virginia, International Solid State Circuits Conference Student Research Preview ISSCC, INVITED TALKS Design of Charge-pump based Bandgap Reference, AACD Workshop 2017, Eindhoven, The Netherlands Ultra-low Power Internet-of-Things, Texas Instruments, Dallas, July 2016.

5 Energy Autonomy for Internet-of-Things, Department of Electrical and Computer Engineering, University of Virginia, April Internet-of-Things: Emerging Technology and Challenges from Circuit Design Perspective, Dayalbagh Educational Institute, Agra, India, March Power Management and Power Delivery for Energy Efficient Circuit and System Design, Maxim Integrated, Chlemsford, MA, March CONFERENCE PARTICIPATION Papers Presented A 32nW Bandgap Reference Voltage Operational from 0.5V Supply for Ultra-low Power Systems, IEEE Solid-State Circuits Conference (ISSCC), A 10mV-Input Boost Converter with Inductor Peak Current Control and Zero Detection for Thermoelectric Energy Harvesting IEEE Custom Integrated Circuits Conference (CICC), A 1.2µW SIMO Energy Harvesting and Power Management Unit with Constant Peak Inductor Current Control Achieving 84-92% Efficiency Across Wide Input and Output Voltages, IEEE Symposiun on VLSI Circuits (VLSI Symp.), A 50nW, 100kbps Clock/Data Recovery Circuit in an FSK RF Receiver on a Body Sensor Node, IEEE International Conference on VLSI Design Conference Single Inductor Energy Harvesting and Power Management Circuit for Body Sensor Nodes IEEE Solid State Circuits Conference (ISSCC) Student Research Preview (SRP), "A 150nW, 5ppm/oC, 100kHz On-Chip Clock Source for Ultra Low Power SoCs", IEEE Custom Integrated Circuits Conference (CICC), A Charge Pump Based Receiver Circuit for a Voltage Scaled Interconnect IEEE International Symposium on Low Power Electronics and Design (ISLPED), Modeling DC-DC Converter Efficiency and Power Management in Ultra Low Power Systems, IEEE Sub-Threshold Conference (Sub-vt), A sub-threshold clock and data recovery circuit for a wireless sensor node, MIT Sub-threshold Conference, TEACHING EXPERIENCE EECE-7398 PMIC, Fall Northeastern University. ECE-4332/6332 VLSI Design, Fall The University of Virginia RESEARCH EXPERIENCE Research Interest Energy harvesting: Ultra-low power, low voltage energy harvesting from solar and thermo-electric generator. Reference Voltage: Low power, voltage reference operational from low voltages. Single inductor multiple output DC-DC converter for ultra-low power systems. Clock sources: 32Khz, crystal oscillator; Stable on-chip clock sources.

6 System-on-chip (SoC): Design of wireless sensor nodes/iot devices. Ultra-low-power circuits: SAR and Sigma-Delta ADC, low power interconnects, ultra-low power chipchip interface, Input/output Circuits. Lab Experience IC tapeout: Participated in more than 20 tapeouts. Testing and silicon Debug experience on more than 10 different chips for analog, digital, and high performance interconnects Programming languages: C, Perl, Skill, Verilog HDL. Knowledge of ESD events and protection circuits. Good understanding of device reliability. PROFESSIONAL ACTIVITIES Professional Societies Member of the Institute of Electrical and Electronics Engineers (IEEE). Member of Solid-State Circuits Society. Member of Circuits and System Society. Refereeing and Reviewing Book Reviewer for Springer. Reviewer for articles in IEEE Journal of Sold-State Circuits (JSSC) Design Automation Conference (DAC) IEEE Transactions on Circuits and Systems- I (TCAS-I) IEEE Transactions on Circuits and Systems- II (TCAS-II) Journal on Low Power Electronics and Application (JLPEA) Sustainability MEDIA COVERAGE Joining an Adviser on Sabbatical, School of Engineering and Applied Science, Unbound Magazine, Spring U.Va. Spinoff PsiKick s Batteryless Sensors Poised for Coming Internet of Things UVA Today, April 16, IEEE SOLID-STATE CIRCUITS MAGAZINE, Spring 2013, discussed Dr. Shrivastava s presentation at ISSCC 2013 on his graduate work on a single-inductor highly efficient energy harvesting and power management circuit. HIGHBEAMRESEARCH.COM (a premium information service for students, instructors, researchers, and professionals), published Wipo Publishes Patent of Benton H. Calhoun and Aatmesh Shrivastava for Low Power Clock Source. (WIPO, short for World Intellectual Property Organization, is the global forum for intellectual property services, policy, information and cooperation).

7 MEDIA & ENTERTAINMENT TECHNOLOGIES (M&E Tech or Mandetech.com) (a digital publication), Ultra-low Power Bandgap Reference, discussed Dr. Shrivastava by name and described his work on bandgap reference. SEMICONDUCTOR MANUFACTURING AND DESIGN (SemiMD.com), a publication and portal covering semiconductor technologies, described Dr. Shrivastava s presentation at ISSCC on Bandgap Reference. ELECTRONIC ENGINEERING TIMES (EETimes.com), covering the global electronics community, described discussions about Dr. Shrivastava s presentation at ISSCC concerning his integrated IoT chips that aim to run from harvested ambient energy in the article 18 Views of ISSCC. HIGHBEAMBUSINESS (the business content provider from Cengage Learning, a leading producer of research solutions for the professional, library, and academic markets worldwide), in the article Bandgap Reference on the Agenda described Dr. Shrivastava s bandgap reference invention as presented at ISSCC. UNIVERSITY OF VIRGINIA ENGINEERING UNBOUND MAGAZINE, Oct. 2014, described Dr. Shrivastava s circuit design research at MIT. HISPANICBUSINESS.COM, Patent Issued for Pulse Generation Circuits in Integrated Circuits, concerning patent filed by Dr. Shrivastava and a co-inventor. 4-TRADERS.COM (online media for investors specializing in stock exchange, financial & economic trends), Texas Instruments: Researchers Submit Patent Application, Pulse Generation Circuits in Integrated Circuits, for Approval, concerning patent application by Dr. Shrivastava and a co-inventor TEACHING AREAS Digital/Analog Integrated Circuits VLSI Design Power Management/Power Electronics RF Integrated Circuits Computer Architecture and System design (with emphasis on IC design) Device Physics/Device Reliability LANGUAGES English : Native/bilingual proficiency Hindi: Native/bilingual proficiency Urdu: Conversational proficiency French : Elementary proficiency Kannada : Elementary proficiency REFERENCES Available upon request

A 23 nw CMOS ULP Temperature Sensor Operational from 0.2 V

A 23 nw CMOS ULP Temperature Sensor Operational from 0.2 V Divya Akella Kamakshi 1, Aatmesh Shrivastava 2, and Benton H. Calhoun 1 1 Dept. of Electrical Engineering, University of Virginia, Charlottesville,