James Morizio

Research Interests

Mixed-Signal CMOS VLSI circuit design, layout and testing
Bioelectronic circuits for wireless neural interfaces: Recording and Stimulation
Hybrid Backscatter Transceiver Design
Sigma Delta ADC and DACs architecture and circuit design
Highly Efficient Ultrasound Microfluidic Transducer Interface Driver
Liquid Crystal on Silicon (LCOS) Pixel driver and interface
Broadband Phase Lock Loop Design and Modeling for VCOs, PLLs, Antenna Drivers, Buffers

Bio

Over the last three decades Dr. Morizio's research has been focused exploring new analog CMOS microelectronics and systems for cross discipline research areas. One objective of his research is to provide disruptive sensor interface technology in niche applications areas to significantly improve system performance and capabilities beyond their current level of technology integration. These current research areas include wireless neural interface systems for closed loop in vivo electrophysiology instrumentation and highly efficient broadband transducer drivers for scalable ultrasonic microfluidic interfaces. 

Dr. Morizio also has 35 years experience at Duke University teaching analog and digital VLSI circuit design graduate courses and is the co-inventor of 8 issued patents.

Education

• B.S. Virginia Polytech Institute and State University, 1982
• M.S.E.E. University of Colorado, Denver, 1984
• Ph.D. Duke University, 1995

Positions

• Adjunct Professor in the Department of Electrical and Computer Engineering

Awards, Honors, and Distinctions

• 15 year service award at Triangle BioSystems International. Harvard Bioscience Inc.. 2016

Courses Taught

• EGR 393: Research Projects in Engineering
• ECE 899: Special Readings in Electrical Engineering
• ECE 590: Advanced Topics in Electrical and Computer Engineering
• ECE 539: CMOS VLSI Design Methodologies
• ECE 532: Analog Integrated Circuit Design
• ECE 495: Special Topics in Electrical and Computer Engineering
• ECE 392: Projects in Electrical and Computer Engineering
• ECE 391: Projects in Electrical and Computer Engineering
• ECE 292: Projects in Electrical and Computer Engineering

Publications

• Shull G, Shin Y, Viventi J, Jochum T, Morizio J, Seo KJ, et al. Design and Simulation of a Low Power 384-channel Actively Multiplexed Neural Interface. In: IEEE Biomedical Circuits and Systems Conference : healthcare technology : [proceedings] IEEE Biomedical Circuits and Systems Conference. 2022. p. 477–81.
• Zaer H, Deshmukh A, Orlowski D, Fan W, Prouvot P-H, Glud AN, et al. An Intracortical Implantable Brain-Computer Interface for Telemetric Real-Time Recording and Manipulation of Neuronal Circuits for Closed-Loop Intervention. Frontiers in human neuroscience. 2021 Jan;15:618626.
• Zhong Z, Zhu H, Zhang P, Morizio J, Huang TJ, Chakrabarty K. Hardware Design and Fault-Tolerant Synthesis for Digital Acoustofluidic Biochips. IEEE transactions on biomedical circuits and systems. 2020 Oct;14(5):1065–78.
• Deshmukh A, Brown L, Barbe MF, Braverman AS, Tiwari E, Hobson L, et al. Fully implantable neural recording and stimulation interfaces: Peripheral nerve interface applications. Journal of neuroscience methods. 2020 Mar;333:108562.
• Zhong Z, Zhu H, Zhang P, Morizio J, Huang TJ, Chakrabarty K. Hardware Design and Experimental Demonstrations for Digital Acoustofluidic Biochips. In: BioCAS 2019 - Biomedical Circuits and Systems Conference, Proceedings. 2019.
• Li X, Zhong S, Morizio J. 16-Channel biphasic current-mode programmable charge balanced neural stimulation. Biomedical engineering online. 2017 Aug;16(1):104.
• Rossi MA, Go V, Murphy T, Fu Q, Morizio J, Yin HH. A wirelessly controlled implantable LED system for deep brain optogenetic stimulation. Frontiers in integrative neuroscience. 2015 Jan;9:8.
• Fan D, Rich D, Holtzman T, Ruther P, Dalley JW, Lopez A, et al. A wireless multi-channel recording system for freely behaving mice and rats. PloS one. 2011 Jan;6(7):e22033.
• Morizio J, Irazoqui P, Go V, Parmentier J. Wireless headstage for neural prosthetics. In: 2nd International IEEE EMBS Conference on Neural Engineering. 2005. p. 414–7.
• Arora H, Klemmer N, Morizio JC, Wolf PD. Enhanced phase noise modeling of fractional-N frequency synthesizers. IEEE Transactions on Circuits and Systems I: Regular Papers. 2005 Jan 1;52(2):379–95.
• Lee S, Morizio JC, Johnson KM. Novel frame buffer pixel circuits for liquid-crystal-on-silicon microdisplays. IEEE Journal of Solid-State Circuits. 2004 Jan 1;39(1):132–9.
• Obeid I, Morizio JC, Moxon KA, Nicolelis MAL, Wolf PD. Two multichannel integrated circuits for neural recording and signal processing. IEEE Trans Biomed Eng. 2003 Feb;50(2):255–8.
• Lee S, Morizio JC, Johnson KM. A LCOS microdisplay driver with frame buffer pixels. Information Sciences. 2003 Jan 1;149(1–3):3–11.
• Lee S, Morizio JC, Johnson KM. Optimization of frame buffer pixels for an LCOS microdisplay. In: PROCEEDINGS OF THE 7TH JOINT CONFERENCE ON INFORMATION SCIENCES. 2003. p. 1470–3.
• Morizio J, Guhados S, Castellucci J, Von Ramm O. 64-Channel ultrasound transducer amplifier. In: 2003 Southwest Symposium on Mixed-Signal Design, SSMSD 2003. 2003. p. 228–32.
• Morizio J, Won D, Obeid I, Bossetti C, Nicolelis M, Wolf P. 16-channel neural pre-conditioning device. In: International IEEE/EMBS Conference on Neural Engineering, NER. 2003. p. 104–7.
• Lee S, Morizio JC, Johnson KM. A LCOS Microdisplay Driver with Frame Buffering Pixels. In: Proceedings of the Joint Conference on Information Sciences. 2002. p. 1353–6.
• Won DS, Obeid I, Morizio JC, Nicolelis MAL, Wolf PD. A multichannel CMOS analog front end IC for neural recordings. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. 2002 Dec 1;3:2070–1.
• Morizio JC, Hoke M, Kocak T, Geddie C, Hughes C, Perry J, et al. 14-bit 2.2-MS/s sigma-delta ADC's. IEEE Journal of Solid-State Circuits. 2000 Jul 1;35(7):968–76.
• Moxon KA, Morizio J, Chapin JK, Nicolelis MAL, Wolf PD. Designing a brain- machine interface for neuroprosthetic control. In: Neural Prostheses for Restoration of Sensory and Motor Function. 2000. p. 179–219.
• Morizio J, Hoke M, Kocak T, Geddie C, Hughes C, Perry J, et al. SNDR sensitivity analysis for cascaded ΣΔ modulators. In: Proceedings - IEEE International Symposium on Circuits and Systems. 2000.
• Morizio J, Hoke M, Kocak T, Geddie C, Hughes C, Perry J, et al. 14-bit, 2.2MS/s sigma delta ADCs. In: European Solid-State Circuits Conference. 1999. p. 82–5.