- Associate Professor of Electrical and Computer Engineering
- Ph.D., University of Rochester, Rochester, NY 2004

- Analog CMOS IC design, A/D and D/A conversion techniques, image sensors, focal plane compression

- Transducer Electronics Systems Laboratory (TESLa)

- Center for Electronic Imaging Systems

- Swetha S. George, Z. Ignjatovic, M. Bocko, "
**Current Sensing Assisted Active Pixel Sensor for High-Speed CMOS Image Sensors**,"*IEEE Sensor Journal*, 2015. - Z. Gao, J.C. Liobe, M. Balon, Z. Ignjatovic, M. Fiscella, M.F. Bocko, "
**Indirect-feedback Sigma-Delta CMOS image sensors with SAR-based startup**,"*eStream*, 2015. - Zeljko Ignjatovic, Danijel Maricic, Mark F. Bocko,"
**Low Power, High Dynamic Range CMOS Image Sensor Employing Pixel-Level Oversampling Sigma-Delta Analog-to-Digital Conversion**,"*IEEE Sensors Journal*, 2014. - Zhe Gao, John C. Liobe, M.F. Bocko, Zeljko Ignjatovic,"
**Indirect-Feedback Sigma-Delta Image Sensors: Theory, Modeling and Design**,"*Regular Papers, IEEE Transactions on Circuits and Systems I*, 2014. - A. P. Sacco, J. Daniel Newman, Paul P. K. Lee, Kenneth D. Fourspring, John H. Osborn, Robert D. Fiete, Mark F. Bocko, Zeljko Ignjatovic, Judith L. Pipher, Craig W. McMurtry, Xi-Cheng Zhang · Jagannath Dayalu, G. J. Fertig, C. Zhang, Z. Ninkov,"
**THz imaging Si MOSFET system design at 215 GHz**",*Proceedings in SPIE*, 2014. - Malisa Marijan, Zeljko Ignjatovic,"
**Non-Linear Reconstruction of Delta-Sigma Modulated Signals: Randomized Surrogate Constraint Decoding Algorithm**,"*IEEE Transactions on Signal Processing*, 2013. - Malisa Marijan, Zeljko Ignjatovic,"
**Information-Theoretic Approach to A/D Conversion**,"*Regular Papers, IEEE Transactions on Circuits and Systems*, 2013. - Edwin J. Tan, Zeljko Ignjatovic, Mark F. Bocko, Paul P K Lee,"
**Non-Uniformly Tiled CMOS Image Sensors for Efficient On-Chip Image Compression**,"*IEEE Sensors Journal*, 2012. - Yu Song, Zeljko Ignjatovic,"
**A High-Performance PLL With a Low-Power Active Switched-Capacitor Loop Filter**,"*IEEE Transactions on Circuits and Systems II: Express Briefs*, 2011 - Roland Cheng, Wendi Heinzelman, Melissa Sturge-Apple, Zeljko Ignjatovic,"
**A Motion-Tracking Ultrasonic Sensor Array for Behavioral Monitoring**,"*IEEE Sensors Journal*, 2011. - John Liobe, Mark Fiscella, Eric Moule, Mark Balon, Mark Bocko, Zeljko Ignjatovic,"
**DS Sentry: An Acquisition ASIC for Smart, Micro-Power Sensing Applications**,"*Proceedings of SPIE*, 2011. - Melissa L Sturge-Apple, Michael A Skibo, Fred A Rogosch, Zeljko Ignjatovic, Wendi Heinzelman,"
**The impact of allostatic load on maternal sympathovagal functioning in stressful child contexts: Implications for problematic parenting**,"*Development and Psychopathology*, 2011 - Malisa Marijan, Ilker Demirkol, Danijel Maricić I, Gaurav Sharma, Zeljko Ignjatovic"
**Adaptive Sensing and Optimal Power Allocation for Wireless Video Sensors With Sigma-Delta Imager**,"*IEEE Transactions on Image Processing*, 2010. - Malisa Marijan, Zeljko Ignjatovic, Donald F. Figer, Brian Ashe, Brandon J. Hanold, Thomas Montagliano, Don Stauffer, Shouleh Nikzad"
**Fully digital image sensor employing delta-sigma indirect feedback ADC with high-sensitivity to low-light illuminations for astronomical imaging applications**,"*Proceedings of SPIE*, 2010. - K. E. Kolb, N. C. Stoffel, B. Douglas, C. W. Maloney, A. D. Raisanen, B. Ashe , D. F. Figer, T. Tamagawa, B. Halpern, Zeljko Ignjatovic,"
**Hybridization of a sigma-delta-based CMOS hybrid detector**",*Proceedings of SPIE*, 2010 - Brandon J. Hanold, D. F. Figer, B. Ashe · Thomas Montagliano, Donald J. Stauffer, Zeljko Ignjatovic, Danijel Maricic, Shouleh Nikzad, Todd J. Jones,"
**Characterization of a SigmaDelta-based CMOS monolithic detector**,"*Proceedings of SPIE*, 2010 - Z. Ignjatovic, M. Bocko, "
**An Interface Circuit for Measuring Capacitance Changes Based Upon Duty Cycle (CDC) Converter**,"*IEEE Sensor Journal*, 2005. [PDF] - Z. Ignjatovic, M. Bocko, "
**A Method for Efficient Interpolation of Uniformly Sampled Discrete-time (Digital) Signals by Using a Blue Noise Mask**,"*in preparation for IEEE Signal Processing Letters*. [PDF]

- Swetha S. George, Yu Song, Zeljko Ignjatovic, "
**A 94-dB SFDR multi-bit audio-band delta-sigma converter with DAC nonlinearity suppression**",*ISCAS*, 2015. - Swetha S. George, Roland Cheng, Zeljko Ignjatovic, "
**A novel ultrasound imaging technique for portable and high speed imaging**",*NEWCAS*, 2015. - Swetha S. George, Zeljko Ignjatovic, "
**An improved high speed low noise CMOS image sensor**",*MWCAS*, 2015. - J. B. Dayalu, Z. Ignjatovic, et. al, "
**Terahertz Detection in Si MOSFET based on Thermionic Emission**",*Proceedings in SPIE*, 2015. - Andrew P. Sacco, et. al,"
**Transmission imaging measurements at 188 GHz with 0.35µn CMOS technology**",*Proceedings in SPIE*, 2015. - Chao Zhang, et. al,"
**Optical simulation of terahertz antenna using finite difference time domain method**",*Proceedings in SPIE*, 2015. - Gregory J. Fertig, et. al,"
**T-ray detection in 0.35-μm CMOS technology**",*Proceedings in SPIE*, 2014. - Guochen Peng, Zeljko Ignjatovic, Mark F Bocko,"
**Preamplifiers for non-contact capacitive biopotential measurements**,"*Annual International Conference of the IEEE Engineering in Medicine and Biology Society*, 2013. - Zhe Gao, John Liobe, Zeljko Ignjatovic, Mark F. Bocko, "
**Noise model of indirect-feedback sigma-delta image sensors**",*ISCAS*, 2013 - Malisa Marijan, Zeljko Ignjatovic,"
**Reconstruction of oversampled signals from the solution space of delta-sigma modulated sequences**,"*Midwest Symposium on Circuits and Systems*, 2011 - Yu Song, Zeljko Ignjatovic,"
**A low-power active switched-capacitor loop filter for phase locked loops**",*ISCAS*, 2010. - Malisa Marijan, Zeljko Ignjatovic,"
**Code division parallel delta-sigma A/D converter with probabilistic iterative decoding**,"*ISCAS*, 2010. - Yu Song, Zhe Gao, Zeljko Ignjatovic,
**"A low power linearity-ratio-independent DAC with application in multi-bit ΔΣ ADCs**,"*Midwest Symposium on Circuits and Systems*, 2010. - Danijel Maricic, Zeljko Ignjatovic, Mark F. Bocko,"
**An Oversampling Digital Pixel Sensor with a Charge Transfer DAC Employing Parasitic Capacitances**",*MWSCAS*, 2009. - Yang Zhang, Zeljko Ignjatovic,"
**Reconfigurable CMOS Image Sensor Design with Built-in Correlated Double Sampling**",*ISCAS*, 2009. - Roland Cheng, Wendi Rabiner Heinzelman, Melissa Sturge-Apple, Zeljko Ignjatovic,"
**Deployment of a Wireless Ultrasonic Sensor Array for Psychological Monitoring**",*SENSAPPEAL*, 2009. - Malisa Marijan, Wendi Heinzelman, Gaurav Sharma, Zeljko Ignjatovic,"
**Optimal resource allocation for wireless video sensors with power-rate-distortion model of imager**",*MWSCAS*, 2009. - Zeljko Ignjatovic, Yang Zhang, Mark F. Bocko,"
**CMOS image sensor readout employing in-pixel transistor current sensing"**",*ISCAS*,2008. - Selçuk Köse, Emre Salman, Zeljko Ignjatovic, Eby G. Friedman,"
**Pseudo-random clocking to enhance signal integrity**",*SoCC*,2008. - John Liobe, Zeljko Ignjatovic, Mark Bocko,"
**Ultra-low overhead signal acquisition circuit for capacitive and piezoelectric sensors**",*MWSCAS*, 2008. - Yu Song, Eric C. Moule, Zeljko Ignjatovic,"
**Adaptable digital delta-sigma modulator for multiband frequency synthesizer**",*MWSCAS*, 2008. - Yu Song, Zeljko Ignjatovic,"
**Threshold Direct Synthesis Structure for Digital Delta-Sigma Modulators**",*MWSCAS*,2008. - Yuxin Wang, Zeljko Ignjatovic,"
**On-Chip Substrate Noise Suppression Using Clock Randomization Methodology**",*MWSCAS*,2008. - Eric C. Moule, Zeljko Ignjatovic,"
**Blue-Noise Sigma-Delta Modulator: Improving Substrate Noise and Nonlinear Amplifier Gain Effects**",*ISCAS*, 2007. - Edwin J. Tan, Zeljko Ignjatovic, Mark F. Bocko,"
**A CMOS Image Sensor with Focal Plane Discrete Cosine Transform Computation. ISCAS 2007**",*ISCAS*, 2007 - Yuxin Wang, Zeljko Ignjatovic,"
**On-Chip Substrate Noise Suppression Using Clock Randomization Methodology**",*ISCAS*, 2007 - Z. Ignjatovic, M. Bocko,
**"A 0.88 nW/pixel, 99.6 dB Linear-Dynamic-Range Fully-Digital Image Sensor Employing a Pixel-Level Sigma-Delta ADC,"***VLSI Symposium 2006. [PDF]* *E. Moule, Z. Ignjatovic,***"A 2-Path Bandpass Sigma-Delta Modulator Utilizing Blue-Noise Path Selection,"***IEEE International Symposium on Circuits and Systems (ISCAS '06)*, May 2006. [PDF]*E. Moule, Z. Ignjatovic,***"Band-Stop Noise Modulated Bandpass Sigma-Delta Analog-to-Digital Converter,"***IEEE International Symposium on Circuits and Systems (ISCAS '06)*, May 2006. [PDF]*Z. Ignjatovic, E. Moule, I. Marcuson,***"Blue-Noise Modulated Sigma-Delta Analog-to-Digital Converter,"***IEEJ International Analog VLSI Workshop (AVLSIWS '05)*, October 2005. [PDF]*E. Moule, Z. Ignjatovic,***"A Time-Interleaved ADC Multiplexed by a Blue- Noise Randomization Method,"***IEEE International Midwest Symposium on Circuits and Systems (MWSCAS '05)*, August 2005. [PDF]*M. Perillo, Z. Ignjatovic and W. Heinzelman,***"An Energy Conservation Method for Wireless Sensor Networks Employing a Blue Noise Spatial Sampling Technique,"***Information Processing in Sensor Networks (IPSN '04)*, April 2004. [PDF]