Publications
Journal Papers
Timothy L Phero, Kaelee A Novich, Benjamin C Johnson, Michael D McMurtrey, David Estrada, Brian J Jaques, "Additively manufactured strain sensors for in-pile applications," Sensors and Actuators A: Physical, 2022.
David K Piech*, Benjamin C Johnson*, Konlin Shen, M Meraj Ghanbari, Ka Yiu Li, Ryan M Neely, Joshua E Kay, Jose M Carmena, Michel M Maharbiz, Rikky Muller, "A wireless millimetre-scale implantable neural stimulator with ultrasonically powered bidirectional communication," Nature Biomedical Engineering, 2020. *Joint authorship.
Kiyo T Fujimoto, Jennifer K Watkins, Timothy Phero, Doug Litteken, Kevin Tsai, Takoda Bingham, Kshama Lakshmi Ranganatha, Benjamin C Johnson, Zhangxian Deng, Brian Jaques, David Estrada, "Aerosol jet printed capacitive strain gauge for soft structural materials" npj Flexible Electronics, 2020.
F Tala, BC Johnson, "MEDUSA: A Low-Cost, 16-Channel Neuromodulation Platform with Arbitrary Waveform Generation," Electronics, 2020.
Mohammad Meraj Ghanbari, David K Piech, Konlin Shen, Sina Faraji Alamouti, Cem Yalcin, Benjamin C Johnson, Jose M Carmena, Michel M Maharbiz, Rikky Muller, "A Sub-mm3 Ultrasonic Free-Floating Implant for Multi-Mote Neural Recording," IEEE Journal of Solid State Circuits, 2020.
A.J. Zhou*, S.R. Santacruz*, B.C. Johnson*, G.P. Alexandrov, A. Moin, F.L. Burghardt, J.M. Rabaey, J.M. Carmena, R. Muller, “A wireless and artefact-free 128-channel neuromodulation device for closed-loop stimulation and recording in non-human primates” Nature Biomedical Engineering, 2019. *Joint authorship.
D. K. Piech*, B. C. Johnson*, K. Shen, M. M. Ghanbari, K. Y. Liu, R. M. Neely, J. E. Kay, J. M. Carmena, M. M. Maharbiz, R. Muller, “StimDust: A 2.2mm³, implantable wireless precision neural stimulator with ultrasonic power and communication,” arXiv:1807.07590, 2018. *Joint authorship.
A. Zhou*, B.C. Johnson*, R. Muller, “Toward true closed-loop neuromodulation: artifact-free recording during stimulation.” Current Opinion in Neurobiology, Volume 50, June 2018, pp. 119-127. *Joint authorship.
A.J. Zhou*, S.R. Santacruz*, B.C. Johnson*, G.P. Alexandrov, A. Moin, F.L. Burghardt, J.M. Rabaey, J.M. Carmena, R. Muller, “WAND: A 128-channel closed-loop, wireless, artifact-free neuromodulation device” arXiv:1708.00556, 2017. *Joint authorship.
ST Peace, BC Johnson, G Li, ME Kaiser, I Fukunaga, AT Schaefer, AC Molnar, TA Cleland, "Coherent olfactory bulb gamma oscillations arise from coupling independent columnar oscillators" BioRxiv, 213827, 2017.
C. Lee, B. Johnson, T. Jung, A. Molnar, "A 72 x 60 Angle-Sensitive SPAD Imaging Array for Lens-less FLIM," Sensors vol. 16, no. 9, pp. 1422, Sept. 2016.
S. Sivaramakrishnan*, C. Lee*, B. Johnson*, A. Molnar, “A Polar Symmetric CMOS Image Sensor for Rotation Invariant Measurement,” Sensors Journal, IEEE, vol. 16, no. 5, pp. 1190-1199, Mar. 2016. *Joint authorship. (Sensors Journal Best Paper Award for 2017)
C. Lee, B. Johnson, A. Molnar, “Angle Sensitive Single Photon Avalanche Diode,” Appl. Phys. Lett. 106, June 2015.
B. Johnson, S. T. Peace, A. Wang, T. A. Cleland, A. Molnar, “A 768-Channel CMOS Microelectrode Array with Angle Sensitive Pixels for Neuronal Recording,” Sensors Journal, IEEE, vol. 13, no. 9, pp. 3211-3218, Sept. 2013.
B. Johnson, A. Molnar, “An Orthogonal Current-Reuse Amplifier for Multi-Channel Sensing,” IEEE J. Solid-State Circuits, vol. 48, no. 6, pp. 1487-1496, June 2013.
C. Andrews, L. Diamente, D. Yang, B. Johnson, A. Molnar, “A Wideband Receiver With Resonant Multi-Phase LO and Current Reuse Harmonic Rejection Baseband,” IEEE J. Solid-State Circuits, vol. 48, no. 5, pp. 1188-1198, May 2013.
Conference Papers
M. Riley, F. Tala, K. J. Johnson, B.C. Johnson, “Fully Customizable, Low-Cost, Multi-Contact Nerve Cuffs for Spatially Selective Neuromodulation,” 2023 45th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC).
M. Riley, F. Tala, M. Bandali, B.C. Johnson, “Wireless Galvanic Impulse Communication for High-Throughput, Low-Power, Miniaturized Neuromodulation Implants,” 2023 45th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC).
M. Bandali, B.C. Johnson, “An Artifact-Resilient Neural Recording Front-End with Rail-to-Rail DM and CM Offset Correction.” IEEE International Circuits and Systems Conference (ISCAS), 2023.
F. Tala, B.C. Johnson, “Active Pulse-Clamp Stimulation for Rapid Recovery, Charge-Balanced Neural Stimulation.” IEEE International Circuits and Systems Conference (ISCAS), 2023.
Mehdi Bandali, Ximing Ren, Fnu Tala, William Clay, Will Hughes, Wan Kuang, Benjamin Johnson, "An 80MHz frame-rate 17.4% fill-factor 16× 16 SPAD image array with event-based multiplexing for super-resolution microscopy," Advanced Photon Counting Techniques XVI, 2022.
Kshama L Ranganatha, Kaelee Novich, Timothy Phero, Kiyo T Fujimoto, Doug Litteken, Dave Estrada, Brian J Jaques, Benjamin C Johnson, "A Wireless, Multi-Channel Printed Capacitive Strain Gauge System for Structural Health Monitoring," 2021 IEEE Sensors.
FNU Tala, Jordan Leiber, Hayden Fisher, Naga Spandana Muppaneni, Benjamin C Johnson, "A Low-Cost, Wireless, Multi-Channel Deep Brain Stimulation System for Rodents," 2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC).
Zhangxian Deng, Betsy Rosales, Linda Choi, Sabrina Mooers, Benjamin C Johnson, "3D-printed and wireless piezoelectric tactile sensors," Electroactive Polymer Actuators and Devices (EAPAD) XXII, 2020.
FNU Tala, M Bandali, BC Johnson, "Automated Distributed Element Model Generation for Neural Interface Co-Design," 2020 IEEE 63rd International Midwest Symposium on Circuits and Systems (MWSCAS).
MM Ghanbari, DK Piech, K Shen, SF Alamouti, C Yalcin, BC Johnson, J. M. Carmena, M. M. Maharbiz, R. Muller, “17.5 A 0.8mm3 Ultrasonic Implantable Wireless Neural Recording System With Linear AM Backscattering,” 2019 IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2019.
B. C. Johnson, K. Shen, D. Piech, M. M. Ghanbari, K. Y. Liu, R. Neely, J. M. Carmena, M. M. Maharbiz, R. Muller, “StimDust: A 6.5mm³ wireless ultrasonic implantable peripheral nerve stimulator with 82% peak efficiency,” 2018 IEEE Custom Integrated Circuits Conference (CICC), Apr. 2018. (Best Paper Award Finalist)
B.C. Johnson, S. Gambini, I. Izyumin, A. Moin, A. Zhou, G. Alexandrov, S.R. Santacruz, J.M. Rabaey, J.M. Carmena, R. Muller, “An implantable 700μW 64-channel neuromodulation IC for simultaneous recording, and stimulation with rapid artifact recovery” IEEE VLSI Circuits Symposium Digest of Technical Papers, 2017.
A. Moin, G. Alexandrov, B. C. Johnson, I. Izyumin, F. Burghardt, S. Pannu, E. Alon, R. Muller, J. Rabaey, "Powering and communication for OMNI: A distributed and modular closed-loop neuromodulation device," 2016 IEEE Engineering in Medicine and Biology Society Conference (EMBC), Aug. 2016.
C. Lee, B. Johnson, A. Molnar, “An On-chip 72x60 Angle-Sensitive Single Photon Image Sensor Array for Lens-less Time-resolved 3-D Fluorescence Lifetime Imaging,” 2014 Symposium on VLSI Circuits, pp. 1-2, June 2014.
B. Johnson, S. T. Peace, T. A. Cleland, A. Molnar, “A 50𝜇m Pitch, 1120-Channel, 20kHz Frame Rate Microelectrode Array for Slice Recording,” IEEE Biomedical Circuits and Systems Conference (BioCAS), pp. 109-112, Nov. 2013.
C. Lee, B. Johnson, A. Molnar, “A Sub-threshold Voltage Ladder Rectifier for Orthogonal Current-reuse Neural Amplifier,” IEEE Biomedical Circuits and Systems Conference (BioCAS), pp. 358-361, Nov. 2013.
B. Johnson*, C. Lee*, S. Sivaramakrishnan*, A. Molnar, “A High-Speed Polar-Symmetric Imager for Contact-less, Real-time Readout and Calibration of Rotational Inertial Sensors,” Sensors, 2013 IEEE, pp. 1-4, Nov. 2013. *Joint authorship.
C. Andrews, L. Diamente, B. Johnson, A. Molnar, “A <12mW, 0.7-3.2GHz Receiver With Resonant Multi-Phase LO and Current Reuse Harmonic Rejection Baseband,” Radio Frequency Integrated Circuits Symposium (RFIC), 2012 IEEE, pp. 43-46, June 2012.
B. Johnson, S. T. Peace, T. A. Cleland, A. Molnar, “A Scalable CMOS Sensory Array for Neuronal Recording and Imaging,” Sensors, 2011 IEEE, pp. 924-927, Oct. 2011.
B. Johnson, D. DeTomaso, A. Molnar, “A Low-Power Orthogonal Current-Reuse Amplifier for Parallel Sensing Applications,” IEEE European Solid-State Circuits Conference (ESSCIRC), pp. 318-321, Sept. 2010.