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Analog and Mixed-Signal IC Design Lab

The Analog and Mixed-Signal IC Design Lab is dedicated to discovering and learning about integrated circuit design. We are a diverse group that studies topics ranging from wireless applications to sensor systems.

As an established research group at UTA, we have collaborated with scholars around the world to improve existing IC designs while also seeking new innovative designs to solve new problems concurrently. Some aspects of our research include:

  • Research applications of electrochemical and optical sensors 
  • Extending wireless charging ranges while improving upon efficiency
  • Use of memristors

Personnel

Sungyong Jung, Ph.D., Lab Director

Students

  • Manu Chilukuri (Ph.D.)
  • Uthra Mahendran (Ph.D.)
  • Hyusim Park (Ph.D.)
  • Roopsagar Palla (M.S.)
  • Revathy Perumalsamy (M.S.)
  • Bishrut Subedi (B.S.)

Alumni

  • Niranjan Karandikar, Ph.D.; Now at Intel
  • Sunil Govardhan, M.S.; Now at Freescale
  • Sujith Dermal, M.S.; Now at Freescale
  • Varun Shenoy, Ph.D.; Now at ON Semiconductor
  • David Maxwell, M.S.; Now at Texas Instruments
  • Ju-Ching Li, Ph.D.; Now at AMD
  • Daniel McBride, M.S.; Ph.D. program at Texas A&M
  • Partha Ghosh, Ph.D.; Now at Broadcom
  • Ritesh Mehta, M.S.; Now at Broadcom
  • Prasanna Kalkura, M.S.; Now at Apple
  • Shin-Chih Chang, M.S.
  • Timothy Merkin, M.S.; Now at Texas Instruments
  • Hemalatha Shanmugasundaram, M.S.; Now at Intel
  • Tamim B. Al-sawaf, M.S.; Now at Schlumberger
  • Shahzad Nazar, M.S.; Now at Apple
  • YoungKyun Jeong, M.S.; Now at Samsung
  • Shaoshu Sha, Ph.D.; Now at Motorola

Research Topics

Hearing Aid Device

The National Institute on Deafness and Other Communication Disorders - part of the National Institutes of Health - reports that one in eight people in the United States aged 12 years or older has hearing loss in both ears, based on standard hearing examinations. Despite this, the World Health Organization states that current production of hearing aids meets less than 10 percent of global need and that about 5 percent of the world's population - 360 million people - have disabling hearing loss. Thus, it has been important to develop acoustic medical devices regardless of countries. The purpose of this research is to develop a low power hearing aid integrated circuit (IC) containing a pre-amplifier, an analog-to-digital converter (ADC), a modulator, and an audio amplifier.

Analog IC Design Utilizing Memristors

The memristor was devised by Leon Chua in 1971. In 2008, R.S. Williams at HP fabricated the first device which behaves as the memristor under certain conditions. The model had TiO2 and TiO2-x regions bounded by metal plates. After an external voltage is applied, the oxygen vacancies move and remain immobile when supply is turned off. It remembers the past applied inputs and resistance values. Hence the name memristor (memory-resistor). Due to its small size, low parasitics and non-volatility, it is used for highly integrated, non-volatile memories.

Memristors can also be used in analog applications such as fine programmable resistors and in sense-amplifier design. It also has applications in neuromorphic computing and as synapse in brain.

Our research is focused on analog applications of memristors in collaboration with Dr. David Hoe from Loyola University.

Environmental Sensing Systems and Circuits

To measure the water quality in the nature source, a submerged array of sensors are created to provide real-time, large area identification. The sensors monitor for months with a battery, communicating with the base station via wireless transceiver, eliminating the need to retrieve the sensor frequently and saving a lot of money and human resource.

The purpose of readout circuit is to amplifier the current signal from PIN photo-detector, then get the information of chemical species on the sensor. Thus, a sensor readout circuit including trans-impedance amplifier(TIA) and ADC are required to design. To obtain a precise result, we aim to develop the readout circuit with low noise and low power consumption.

Electrochemical Sensor Systems for Bio and Chemical Detection

As sensor technology has been developed, electrochemical sensors lead a trend of smart sensing systems, which allows Point-of-Care-Testing. This evolution in the health care area has set a task for researchers to develop new architectures with low power consumption and compactness for the measurement system, as well as achieving accuracy, sensitivity, range and stability. In order to achieve these requirements, AMIC Lab has developed electrochemical sensor readout circuit systems for chemical detection and bio application such as glucose monitoring and gas sensing.

Wireless Power Transfer System

Wireless power transfer technology has received much attention for the portable electronic device and medical implant charging. Wireless power transfer systems are necessary to provide fast charging time, high efficiency, long range, and human safety for ultimate ubiquitous charging. To implement it, an inductive coupling, a magnetic resonance, a radio frequency harvesting, and an optical power transfer have been researched. We are interested of developing an optical power transfer system for rapid charging. In addition, highly efficient rectifier and DC-DC converter for the magnetic resonance method is under researching.

Selected Publications

Journal Publications

  • B. Arigong, H. Zhang, S. Yoon, S. Jung, and H. Kim, “An Eye-Opening Measurement Circuit for a Feed-Forward Equalizer,” Microwave and Optical Technology Letters, vol. 56, issue 9, pp. 2136-2141, September, 2014.
  • C. Lim, S. Govardhan, H. Kim, K. Ryoo, and S. Jung, “A CMOS Switched Capacitor Based Low Power Amperometric Readout Circuit for Microneedle Glucose Sensor,” Journal of Low Power Electronics, vol. 10, no. 2, pp. 279-285, June, 2014.
  • V. Shenoy, S. Jung, Y. Yoon, Y. Park, and H. Chung, “A CMOS Analog Correlator based Painless Non-enzymatic Glucose Sensor Readout Circuit,” IEEE Sensors Journal, vol. 14, pp. 1591-1599, May, 2014. ISSN: 1530-437X
  • H. Kim, S. Woo, S. Jung, and K. Lee, “A CMOS transmitter leakage canceller for WCDMA applications,” IEEE Transactions on Microwave Theory and Techniques, vol. 61, pp. 3373-3380, September, 2013. ISSN: 0018-9480
  • B. Arigong, H. Zhang, S. Jung, and H. Kim, “A Feed-Forward Equalizer with Winner-take-all Variable Gain Amplifiers for Backplane Channels,” Microwave and Optical Technology Letters, vol. 55, no. 11, pp. 2666-2670, November, 2013.
  • J. Li, S. Jung, H. Kim, P. Gui, and H. Chung, “A Carrier-Based CMOS Impulse Generator for Ultra-wideband Vehicular Radar Application,” Microwave and Optical Technology Letters, vol. 55, no. 8, pp. 1881-1887, August, 2013.
  • Y. Joo, H. Kim, and S. Jung, “A CMOS 802.15.4a Transmitter for Sub-GHz Applications,” Microwave and Optical Technology Letters, vol. 53, no. 8, pp. 1919-1921, August, 2011.
  • J. Li, S. Jung, and H. Moon, “A Fully Integrated 3-10 GHz IR-UWB CMOS Impulse Generator,” Microwave and Optical Technology Letters, vol. 53, no. 8, pp. 1887-1890, August, 2011.
  • H. Zhai, S. Jung, and M. Lu, “Wireless communication in boxes with metallic enclosure based on time-reversal ultra-wideband technique: a full-wave numerical study,” Progress In Electromagnetics Research, vol. PIER 101, pp. 63-74, March, 2010.
  • N. Thakoor, J. Gao, and S. Jung “Embedded Planar Surface Segmentation System for Stereo Images,” Journal of Machine Vision and Applications, vol.21, no. 2, pp. 189-199, February, 2010.
  • H. Zhai, S. Sha, V. Shenoy, S. Jung, M. Lu, K. Min, S. Lee, and D. Ha, “An Electronic Circuit System for Time-Reversal of Ultra-Wideband Short Impulses based on Frequency Domain Approach,” IEEE Transactions on Microwave Theory and Techniques, vol. 58, no. 1, pp. 74-86, January, 2010. ISSN: 0018-9480
  • P. Ghosh, M. Lu, and S. Jung, “Design of a Radiation Hard Phase-Locked Loop at 2.5 GHz using SOS-CMOS,” Journal of Systems Engineering and Electronics, vol. 20, no. 6, pp. 1159-1166, December, 2009.
  • M. Lu and S. Jung, “On the Well-Posedness of Integral Equations Associated with Cavity Green's Functions around Resonant Frequencies,” Microwave and Optical Technology Letter, vol. 51, no. 6, pp. 1476-1481, June, 2009.
  • M. Lu, J. Bredow, S. Jung, S. Tjuatja, “Evaluation of Green’s Functions of Rectangular Cavities around Resonant Frequencies in the Method of Moments”, IEEE Antennas and Wireless Propagation Letters, vol. 8, pp. 204-208, April, 2009.
  • N. Thakoor, J. Gao, and S. Jung “Hidden Markov model based weighted likelihood discriminant for 2D shape classification,” IEEE Transactions on Image Processing, vol. 16, Issue 11, pp. 2707-2719, November, 2007. ISSN: 1057-7149
  • D. Park, Y. Jeong, J-B. Lee, and S. Jung, “Chip-level integration of RF MEMS on-chip inductors using UV-LIGA technique,” Journal of Microsystem Technologies, vol. 14, numbers 9-11, pp. 1429-1438, October, 2007.
  • Guangbin Zhang, Sooping Saw, Jin Liu, Scott Sterrantino, David K. Johnson, and Sungyong Jung, “An Accurate Current Source with On-Chip Self-Calibration Circuits for Low-Voltage Current Mode Differnetial Drivers”, IEEE Transactions on Circuits and Systems I, vol. 53, Issue 1, pp. 40-47, January, 2006. ISSN: 1549-8328
  • Sungyong Jung, Martin A. Brooke, and Nan Maire Jokerst, “Parasitic Modeling and Analysis for a 1 Gb/s CMOS Laser Driver”, IEEE Transactions on Circuits and Systems II, Vol. 51, No. 10, pp. 517- 522, October, 2004. ISSN: 1549-7747
  • Jokerst, N.M.; Brooke, M.A.; Laskar, J.; Wills, D.S.; Brown, A.S.; Vrazel, M.; Jung, S.; Joo, Y.; Chang, J.J., “ Microsystem optoelectronic integration for mixed multisignal systems”, IEEE Journal of Selected Topics in Quantum Electronics, Vol. 6, Issue: 6, pp. 1231 –1239, Nov.-Dec. 2000. ISSN: 1077-260X
  • Steven W. Bond, Oliver Vendier, Myunghee Lee, Sungyong Jung, Abelardo Lopez-Lagunas, Sek Chai, Georgianna Dagnall, M. Brooke, N. Jokerst, D. Wills, and April Brown, “A Three Layer 3D System Using Through-Si Vertical Optical Interconnections and Si CMOS Hybrid Building Blocks,” IEEE Journal of Selected Topics in Quantum Electronics, Vol.5, No. 2, pp. 276 – 286, March, 1999. ISSN: 1077-260X
  • Oliver Vendier, Steven W. Bond, Myunghee Lee, Sungyong Jung, M. Brooke, N. Jokerst, and R.P. Leavitt, “Stacked Silicon CMOS Circuits with a 40 Mb/s Through-Silicon Optical Interconnect,” IEEE Photonics Technology Letters, vol. 10, no. 4, pp. 606-608, April, 1998. ISSN: 1041-1135

Conference Publications

  • V. Shenoy, S. Jung, K. Ryoo, and H. Kim, “A 24 GHz Low Noise Amplifier for Short Range UWB Automotive Radar,” IEEE Texas Symposium on Wireless & Microwave Circuits & System, April, 2013.
  • S. Raavi, B. Arigong, R. Zhou, S. Jung, M. Jin, H. Zhang, and H. Kim, “An Optical Wireless Power Transfer System for Rapid Charging,” IEEE Texas Symposium on Wireless & Microwave Circuits & System, April, 2013.
  • H. Kim and S. Jung, “Dual-Band Class-E RF PA Design utilizing Complex Impedance Transformers,” IEEE Texas Symposium on Wireless & Microwave Circuits & System, April, 2013.
  • J. LI, S. Jung, Y. Joo, and P. Gui, “A Current-Steering DAC-Based CMOS Ultra-Wideband Transmitter with Bi-Phase Modulation,” IEEE ISCAS, pp. 2545-2548, May, 2012.
  • S. Koppa, D. Park, Y. Joo, and S. Jung, “A 105.6dB DR and 65dB Peak SNR Self-Reset CMOS Image Sensor Using a Schmitt Trigger Circuit,” IEEE MWSCAS, pp. 1-4, August, 2011.
  • V. Shenoy, D. McBride, and S. Jung, “A High Fill-Factor High-SNR CMOS Image Sensor for IR Camera Applications,” Proc. of SPIE, vol. 8012, 80120J, April, 2011.
  • J. Li, S. Jung, M. Lu, and K. Min, “A CMOS Ultra-Wideband Transmitter with Bi-Phase Modulation for 22-29 GHz Vehicular Radar Application,” IEEE MWSCAS, pp. 449-452, August, 2010.
  • N. Karandikar, S. Jung, P. Gui, and Y. Joo, “Design of an Analog Correlator for 22-29GHz UWB Vehicular Radar System Using Improved High Gain Multiplier Architecture,” IEEE MWSCAS, pp. 930-933, August, 2010.
  • H. Kim, Y. Joo, and S. Jung, “Analytical Model of Pulse Combined UWB Pulse Generator,” IEEE International Symposium on Communication and Information Technology, pp. 1413-1418, September, 2009.
  • J. Li, S. Jung, M. Lu, P. Gui, and Y. Joo, “A Current-Steering DAC-Based CMOS Ultra-Wideband Impulse Generator,” IEEE International Symposium on Communication and Information Technology, pp. 971-975, September, 2009.
  • H. Kim, Y. Joo, and S. Jung, “A Tunable Pulse Generator for Sub-GHz UWB Systems,” IEEE MWSCAS, pp. 292-296, August, 2009.
  • P. Zhu, W. Chen, D. Wu, P. Gui, S. Jung, “A TID Tolerant, Wide Band and Low Jitter Phase-Locked Loop in 0.25um CMOS Silicon-on-Sapphire Technology”, IEEE Nuclear and Space Radiation Effects (NSREC), presented, July, 2009.
  • J. Li, M. Lu, S. Jung and K. Min, “A CMOS Ultra-Wideband Impulse Generator for 22-29 GHz Automotive Radar Applications,” IEEE Radar Conference, pp. 1-4, May, 2009.
  • S. Sha, V. Shenoy, M. Lu, S. Jung, K. Min, and S. Lee, “A hardware architecture for time reversal of short impulses based on frequency domain approach,” Proc. of SPIE, Vol. 7308, pp. 73080T-1-73080T-9, April, 2009.
  • V. Shenoy, S. Sha, S. Jung, and M. Lu, “A Circuit Implementation for Time-Reversal of Short Impulses,” IEEE APMC, pp. 1-4, December, 2008.
  • T. Merkin, J.C. Li, S. Jung, M. Lu, J. Gao, and S. Lee, “A 100-960 MHz CMOS Ultra-Wideband Low Noise Amplifier, IEEE Midwest Symposium on Circuits and Systems, pp. 141-144, August, 2008.
  • V. Shenoy, P. Kalkura, S. Jung, M. Lu, J. Gao, and S. Lee, “A Dual Slope based Pulse Position Modulation for sub-GHz IR-UWB Systems,” IEEE Midwest Symposium on Circuits and Systems, pp. 846-849, August, 2008.
  • M. Lu, J. W. Bredow, S. Jung, and S. Tjuatja, “On the Well-Posedness of Integral Equations Associated with Cavity Green’s Functions around Resonant Frequency,” IEEE AP-S International Symposium on Antennas and Propagation, pp. 1-4, July, 2008.
  • N. Thakoor, J. Gao, and S. Jung, "Real time planar surface segmentation in disparity space," IEEE Workshop on Embedded Computer Vision, pp. 1-8, June, 2007.
  • M. Lu, J. Bredow, S. Jung, and S. Tjuatja, “Theoretical and Experimental Study of a Quasi-Planar Conical Antenna,” IEEE International Symposium on Antenna and Propagation, pp. 4777-4780, June, 2007.
  • M. Lu, J. Bredow, S. Jung, and S. Tjuatja, “On the Resonant Singularities Associated with the Green’s Functions of Metallic Rectangular Cavities in the Context of the Method of Moments,” IEEE International Symposium on Antenna and Propagation, pp. 2793-2796, June, 2007.
  • M. Lu, N.-W. Chen, J. Bredow, S. Jung, and S. Tjuatja, “Study of Photonic Crystals at Millimeter Wave Band,” IEEE International Symposium on Antenna and Propagation, pp. 177-180, June, 2007.
  • V. Shenoy, H. Shanmugasundaram, S. Jung, J. Gao, and Y. Joo, “CMOS Optical Transimpedance Amplifier Design for PAM Application,” IASTED, pp. 70-73, Nov., 2006.
  • T. Merkin, S. Jung, J. Gao, and Y. Joo, “A CMOS Ultra-Wideband Differential Low Noise Amplifier,” IEEE APMC, pp. 417-420, Dec., 2006.
  • N. Thakoor, J. Gao, and S. Jung, "Detecting occlusion for hidden Markov modeled shapes," Proc. IEEE International Conference on Image Processing, pp. 945-948, Oct, 2006.
  • H. Kim, Y. Joo, and S. Jung, “A Tunable CMOS UWB Pulse Generator,” IEEE Conference on Ultra Wideband, pp.109-112, September, 2006.
  • T. Merkin, S. Jung, S. Tjuatja, Y. Joo, D. Park, and J-B Lee, “An Ultra-Wideband Low Noise Amplifier with Air-suspended RF MEMS Inductors,” IEEE Conference on Ultra Wideband, pp. 459-464, September, 2006.
  • S-C. Chang, S. Jung, S. Tjuatja, J. Gao, and Y. Joo, “A CMOS 5th Derivative Impulse Generator for an IR-UWB Transmitter,” IEEE MWSCAS, vol. 2, pp. 376-380, August, 2006.
  • N. Thakoor, J. Gao, and S. Jung, "Occlusion resistant shape classifier based on warped optimal path matching," Proceedings of IEEE International Conference on Pattern Recognition, pp. 60-63, August. 20-24, 2006.
  • D. Maxwell, S. Jung, Y. Joo, J. Gao, and H. Doh, “A Two-Stage Cascode CMOS LNA for UWB Wireless Systems”, IEEE Midwest Symposium on Circuits and Systems, pp. 627-630, August, 2005.
  • H. Kim, S. Jung, and Y. Joo, “Digitally Controllable Bi-Phase CMOS UWB Pulse Generator,” IEEE International Conference on Ultra-Wideband, pp. 442-445, September, 2005.
  • N. Thakoor, J. Gao, S. Jung, “Generalized Probabilistic Decent Method based Minimum Error Shape Classification using Hidden Markov Models,” IEEE ICME, pp. 342-345, July, 2005.
  • J. Gao, N. Thakoor, and S. Jung, “A Motion Field Reconstruction Scheme for Smooth Boundary Video Object Segmentation,” IEEE International conference on image processing (ICIP), Vol. 1, pp. 381-384, Oct., 2004.
  • H. Liu, X. Lin, Y. Kim, J. Liu, and S. Jung, “Electronic Dispersion compensation for 10 Gbps Data Transmission over Multi-mode Fibers,” IEEE Dallas CAS Workshop, pp. 159-162, September, 2004.
  • S. Jung, J. Gao, and J. Liu, "CMOS Multi-level Signal Transmitter for Optical Communication," IEEE Midwest Symposium on Circuits and Systems 2004, pp. II-185 – II-188, July 2004.
  • Y. Jeong, H. Doh, S. Jung, D. Park, and J. Lee, "CMOS VCO & LNA Implemented by Air-Suspended On-Chip RF MEMS LC," IEEE Midwest Symposium on Circuits and Systems, pp. I-373 – I-376, July, 2004.
  • H. Doh, Y. Jeong, S. Jung, and Y. Joo, "Design of CMOS UWB Low Noise Amplifier with CMOS Feedback," IEEE Midwest Symposium on Circuits and Systems 2004, pp. II-641 – II-644, July, 2004.
  • S. Nazar, B. A. Shirazi, and S. Jung, “Performance/Energy efficiency analysis of register files in superscalar processors”, The International Conference on VLSI, pp. 325 – 331, June, 2004.
  • S. Vishwakarma, S. Jung, Y. Joo, “Ultra Wideband CMOS Low Noise Amplifier with Active Input Matching,” IEEE Conference on Ultra Wideband Systems and Technologies, pp 415 – 419, May, 2004.
  • Y. Jeong, J. Liu and S. Jung, “A CMOS Impulse Generator for UWB Wireless Communication System,” Proceedings of 2004 IEEE International Symposium on Circuit and Systems, pp. IV-129 – IV-132, May, 2004.
  • D.L. Geddis, S.R. Hyun, J. Chang, S. Jung, M.A. Brooke, N.M. Jokerst, “Single fiber Bi-directional links using 3D stacked thin film emitters and detectors integrated onto CMOS transceiver circuits”, IEEE Conference on Lasers and Electro-Optics, Vol. 2, pp. 270-271, May, 2004.
  • G. Zhang, J. Liu, and S. Jung, “An accurate current source with on-chip self-calibration circuits for low-voltage differential transmitter drivers”, IEEE ISCAS, Vol. 2, pp. II-192 -II-195, May, 2003.
  • S. Jung, M. A. Brooke, and N. M. Jokerst, “Packaging Considerations for a 1 Gbps Si CMOS Optical Driver,” IEEE LEOS Annual Meeting, November, 2000.
  • N.M. Jokerst, M.A. Brooke, J. Laskar, D.S. Wills, A.S. Brown, O. Vendier, S. Bond, M. Vrazel, R. Huang, M. Thomas, H. Kuo, S. Cho, S. Jung, Y.J. Joo, J.J. Chang, “Smart photonic links: Optoelectronics devices integrated with circuits and interconnection substrates, ” Digest of the Optical Society of America Annual Meeting, pp. 94, October, 2000.
  • N.M. Jokerst, M.A. Brooke, J. Laskar, D.S. Wills, A.S. Brown, O. Vendier, S. Bond, J. Cross, M. Vrazel, M. Thomas, M. Lee, S. Jung, Y.J. Joo, J.J. Chang, “Smart photonics: Optoelectronics integrated with Si CMOS VLSI circuits, ” Proceedings of the SPIE Special Symposium on the Future of Computing, Vol. 4109, pp. 241-251, July, 2000.
  • J. Chang, S. Jung, M. Vrazel, K. Jung, M. Lee, M. A. Brooke, N. M. Jokerst, and S. Wills, “Mixed Signal Hybrid OEICs: An InP I-MSM Integrated Onto a Mixed Signal CMOS Analog Optical Receiver with a Digital CMOS Microprocessor,” Proceedings of the Optics in Computing Conference, May, 2000.
  • J. Chang, S. Jung, M. Vrazel, K. Jung, M. A. Brooke, and N. M. Jokerst, “Hybrid Optically Interconnected Microprocessor: An InP I-MSM Integrated Onto a Mixed Signal CMOS Analog Optical Receiver with a Digital CMOS Microprocessor,” Proceedings of the SPIE, Vol. 4089, pp. 708-714, 2000.
  • N.M. Jokerst, M.A. Brooke, J. Laskar, D.S. Wills, A.S. Brown, O. Vendier, S. Bond, J. Cross, M. Vrazel, M. Thomas, M. Lee, S. Jung, Y.J. Joo, J.J. Chang, “Smart photonics: Optoelectronics integrated onto Si CMOS circuits, ” IEEE Lasers and Electro-Optics Society 12th Annual Meeting, Vol. 2, pp. 423-424, November, 1999.
  • J. Chang, M. Lee, S. Jung, M. Brooke, N. Jokerst, and D. Wills, “Fully Differential Current-Input CMOS Amplifier Front-End Suppressing Mixed Signal Substrate Noise for Optoelectronic Applications,” International Symposium on Circuits and Systems, vol. 1, p. 327-330, June, 1999.
  • S. W. Bond, S. Jung, O. Vendier, A. Lopez-Lagunas, S. Chai, G.a Dagnall, M. Brooke, N. Jokerst, D. Wills, and A. Brown, “3D Stacked Si CMOS VLSI Smart Pixels using Through-Si Optoelectronic Interconnections,” Technical Digest IEEE LEOS Summer topical meeting, pp. 27-28, July, 1998.
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