Publications

Journal Articles

  1. Jun Liu, Beomsoo Park, Marino Guzman, Ahmed Fahmy, Taewook Kim, Student Member, IEEE, and Nima Maghari, “A Fully Synthesized 77dB SFDR Reprogrammable SRMC Filter Using Digital tandard Cells,”, IEEE Transaction on Very Large Scale Integration (TVLSI), to appear.
  2. Md Mahbub Alam, Sreeja Chowdhury, Beomsoo Park, David Munzer, Nima Maghari, Mark Tehranipoor, Domenic Forte , “Challenges and Opportunities in Analog and Mixed Signal (AMS) Integrated Circuit (IC) Security,” Springer Journal of Hardware and System Security (HASS), pp1-18, 2017.
  3. Kim; C. Han; N. Maghari, ” A 4th Order Continuous-Time Delta-Sigma Modulator Using 6-bit Double Noise-Shaped Quantizer,” IEEE Journal of Solid-State Circuits (JSSC) , Special issue on ISSCC 2017, Dec 2017 (invited paper).
  4. Han, N. Maghari, ‘Time-Shifted ELD compensation DAC for 2-Ts delay in CT-ΔΣ ADC”, accepted, IET Electronics Letters.
  5. Kim; C. Han; N. Maghari, “A 7.2 mW 75.3 dB SNDR 10 MHz BW CT Delta-Sigma Modulator Using Gm-C-Based Noise-Shaped Quantizer and Digital Integrator,” in IEEE Journal of Solid-State Circuits (JSSC) , vol.PP, no.99, pp.1-11.
  6. Han and N. Maghari, “Passive quantisation error extraction in continuous-time delta–sigma modulators,” in Electronics Letters, vol. 52, no. 11, pp. 917-919, 5 26 2016.
  7. Changsok Han and Nima Maghari, “Time-interleaved noise-coupled delta-sigma modulator using modified noise shaped integrating quantizer”, IEEE Journal on Emerging and Selected Topics in Circuits and Systems, JETCAS, Dec. 2015 (invited paper).
  8. Yue Hu; Venkatram, H.; Maghari, N.; Un-Ku Moon, “A Continuous-Time \Delta \Sigma ADC Utilizing Time Information for Two Cycles of Excess Loop Delay Compensation,” in Circuits and Systems II: Express Briefs, IEEE Transactions on , vol.62, no.11, pp.1063-1067, Nov. 2015
  9. Fahmy, A.; Jun Liu; Taewook Kim; Maghari, N., “An All-Digital Scalable and Reconfigurable Wide-Input Range Stochastic ADC Using Only Standard Cells,” in Circuits and Systems II: Express Briefs, IEEE Transactions on , vol.62, no.8, pp.731-735, Aug. 2015
  10. Taewook Kim; Changsok Han; Maghari, N., “Noise-Shaped Residue-Discharging Delta-Sigma ADCs With Time-Modulated Pulse Feedback,” Circuits and Systems I: Regular Papers, IEEE Transactions on , vol.61, no.10, pp.2796,2804, Oct. 2014
  11. Han, C.; Maghari, N., “Delay based noise cancelling sturdy MASH delta-sigma modulator,” Electronics Letters , vol.50, no.5, pp.351,353, Feb. 27 2014.
  12. Taehwan Oh; Maghari, N.; Un-Ku Moon, “A Second-Order ΔΣ ADC Using Noise-Shaped Two-Step Integrating Quantizer,” Solid-State Circuits, IEEE Journal of , vol.48, no.6, pp.1465,1474, June 2013
  13. Weaver, H. Hershberg, N. Maghari, U. Moon, “Domino-Logic-Based ADC for Digital Synthesis,” IEEE Transactions on Circuits and Systems—II: Express Briefs, Nov 2011.
  14. Maghari and U. Moon, “A Third-Order DT ∆∑ Modulator Using Noise-Shaped Bi-directional Single-Slope Quantizer,” IEEE J. Solid-State Circuits (JSSC), Vol 46, pp 2882-2891, Dec. 2011.
  15. Oh, N. Maghari, D. Gubbins and U. Moon, “Analysis of Residue Integration Sampling with Improved Jitter Sensitivity”,  TCAS-II, Vol 58, No 11, pp 417-421, 2011.
  16. Hu, N. Maghari, T. Musah, U. Moon, “Time-Interleaved Noise-Shaped Integrating Quantizers,” IEE Electron Lett., April 2010.
  17. Rajaee, T. Musah, N. Maghari, S. Takeuchi, M. Aniya, K. Hamashita, and U. Moon, “Hybrid Delta-Sigma/Pipelined Analog-to-Digital Converter”, Journal of solid-state circuits (JSSC), Vol.  45,  No. 4, pp 719-730, Apr. 2010.
  18. Maghari, G. C. Temes, and U. Moon, “Noise-Shaped Integrating Quantizers in ΔΣ Modulators”, IEE Electron. Lett., vol. 42, pp. 612-613, June  2009.
  19. Maghari, S. Kwon, G. C. Temes, and U. Moon, “74dB SNDR Multi-Loop Sturdy-MASH Delta-Sigma Modulator Using 35dB Opamp Gain,” IEEE J. Solid-State Circuits (JSSC), vol. 44, No. 8, page 2212-2221, Aug 2009.
  20. Maghari, G. C. Temes, and U. Moon, “Single-Loop ΔΣ Modulator with Extended Dynamic Range,” IEE Electron. Lett., vol. 44, No. 25, pp. 1452-1453, Dec. 2008.
  21. Maghari, S. Kwon, G. C. Temes, and U. Moon, “Sturdy MASH Δ-Σ Modulator,” IEE Electron. Lett., vol. 42, pp. 1269-1270, Oct. 2006.
  22. Yavari, N. Maghari, and O. Shoaei, “An Accurate Analysis of Slew-Rate for Two-Stage CMOS Opamps,” IEEE Transactions on Circuits and Systems—II: Express Briefs, March 2005

Conference Proceedings

  1. Changsok Han, Taewook Kim, Nima Maghari, “A continuous-Time Delta-Sigma Modulator with Self-ELD Compensated Quantizer,”, IEEE Custom Integrated Circuits Conference (CICC), 2018.
  2. Ahmed Fahmy, Jun Liu, Pavan Terdal, Ryan Madler, Rizwan Bashirullah, and Nima Maghari, “A Synthesizable Time-Based LDO using Digital Standard Cells and Analog Pass Transistor”, accepted, ESSCIRC 2017.
  3. Arun Javvaji, Pavan Terdal, Changsok Han, Taewook Kim and Nima Maghari “A 200MS/s 7bit Time Domain Ring Quantizer”, accepted, MWSCAS 2017.
  4. Han, A. Javvaji, N. Maghari, “Continuous-Time Delta-Sigma Modulator with Maximally Flat Signal Transfer Function using Minimum Number of DACs”, accepted, MWSCAS 2017.
  5. Marco Ballini, Joonsung Bae, Nicola Marrocco, Rik Verplancke, David Schaubroeck, Dieter Cuypers, Maarten Cauwe, John O’Callaghan, Ahmed Fahmy, Nima Maghari, Rizwan Bashirullah3, Chris van, “Intraneural Active Probe for Bidirectional Peripheral Nerve Interface”, VLSI Circuits, 2017.
  6. Troy Bryant, Sreeja Chowdhury, Domenic Forte, Mark Tehranipoor and Nima Maghari, “”A Stochastic All-Digital Weak Physically Unclonable Function for Analog/Mixed-Signal Applications”, IEEE International Symposium on Hardware Oriented Security and Trust (HOST) May 1-5, 2017
  7. Kim, C. Han, N. Maghari, “An 11.4mW 80.4dB-SNDR 15MHz-BW CT Delta-Sigma Modulator Using 6b Double Noise-Shaped Quantizer”, ISSCC 2017.
  8. Jun Liu, Troy Bryant, Jeffery Morroni, and Nima Maghari, “A 90nA Quiescent Current 1.5V-5V 50mA Asynchronous Folding LDO using Dual Loop Control,” IEEE Asian Solid-State Circuits Conference (A-SSCC), 2016.
  9. Troy Bryant, Sreeja Chowdhury, Domenic Forte, Mark Tehranipoor, and Nima Maghari, “A Stochastic Approach to Analog Physical Unclonable Function,” IEEE MWSCAS 2016.
  10. Jun Liu and Nima Maghari, “A Fully-Synthesizable 0.6V Digital LDO with Dual-Loop Control using Digital Standard Cells,” IEEE NEWCAS 2016.
  11. Changsok Han, Taewook Kim, and Nima Maghari, “SMASH-MASH Delta-Sigma Modulator using Noise-Shaping Quantizers”, IEEE NEWCAS 2016.
  12. Changsok Han, Taewook Kim, Arun Javvaji, and Nima Maghari, “Multi-stage delta-sigma modulator with a relaxed opamp gain using a back-end digital integrator”, IEEE International Symposium on Circuits and Systems, ISCAS, May 2016 (accepted).
  13. Changsok Han, Ahmed Fahmy, and Nima Maghari, “Noise-cancelling sturdy MASH delta-sigma modulator”, IEEE International Symposium on Circuits and Systems, ISCAS, May 2016 (accepted).
  14. Taewook Kim, Troy Bryant, Changsok Han, and Nima Maghari, “A nano-ampere 2nd order temperature-compensated CMOS current reference using only one resistor for wide-temperature range applications”, IEEE International Symposium on Circuits and Systems, ISCAS, May 2016 (accepted).
  15. Jun Liu, Ahmed Fahmy, Taewook Kim and Nima Maghari, “A Fully Synthesized 0.4V 77dB SFDR Reprogrammable SRMC Filter Using Digital Standard Cells,” IEEE Custom Integrated Circuits Conference (CICC) 2015, (accepted)
  16. Taewook Kim, Changsok Han, and Nima Maghari “A 7.2 mW, 75.3 dB SNDR, 10 MHz BW CT Delta-Sigma Modulator Using Gm-C-Based Noise-Shaped Quantizer and Digital Integrator”, IEEE VLSI Symposia, 2015.
  17. Taewook Kim, Jun Liu, and Nima Maghari “High-Speed and High-Linearity Ring Oscillator Based Pulse Width Modulator” IEEE International Symposium on Circuits and Systems, ISCAS 2015
  18. Changsok Han, Taewook Kim, and Nima Maghari, “Sturdy-MASH Delta-Sigma Modulator with Noise-Shaped Integrating Quantizer and Dual-DAC DWA,” IEEE International Symposium on Circuits and Systems, ISCAS 2015
  19. Changsok Han and Nima Maghari, “Continuous Time Delta-Sigma Modulator with an Embedded Passive Low Pass Filter” IEEE International Symposium on Circuits and Systems, ISCAS 2015
  20. Maghari, Nima; Moon, Un-Ku, “Emerging analog-to-digital converters,” European Solid State Circuits Conference (ESSCIRC), ESSCIRC 2014 – 40th , vol., no., pp.43,50, 22-26 Sept. 2014, Plenary Talk (invited paper)
  21. Taehwan Oh, Nima Maghari, Un-Ku Moon, “ A 5MHz BW 70.7dB SNDR Noise-Shaped Two-Step Quantizer Based ΔƩ ADC”, IEEE Symposia on VLSI Technology and Circuits,
  22. Manideep Gande, Nima Maghari, T. Oh , Un-Ku Moon, “ A 71dB Dynamic Range Third-Order ΔΣ TDC using Charge-Pump,” IEEE Symposia on VLSI Technology and Circuits,
  23. Gregoire, T. Musah, N. Maghari, S.weaver, U. Moon, “A 30% Beyond VDD Signal Swing 9-ENOB Pipelined ADC using a 1.2V 30dB Loop-Gain Opamp,” IEEE Asian solid-state circuits conference (A-SSCC), Nov. 2011.
  24. Maghari and U. Moon, “A Third-Order DT ∆∑ Modulator Using Noise-Shaped Bi-directional Single-Slope Quantizer,” in IEEE ISSCC Dig. Tech. Papers, Feb 2011, pp 474-475.
  25. N Maghari, S. Weaver, U. Moon, “A +5dBFS Third-Order Extended Dynamic Range Single-Loop ∆∑ Modulator,” IEEE Custom Integrated Circuits Conference (CICC), pp. 1-4, Sep 2010.
  26. Maghari and U. Moon,“A Double-Sampled Path-Coupled Single-Loop ΔΣ Modulator Using Noise-Shaped Integrating Quantizer,” proc. Of IEEE Int. Symp. On Circuits and Systems, ISCAS 2010.
  27. Maghari and U. Moon,“Precise Area-Controlled Return-to-Zero Current Steering DAC with Reduced Sensitivity to Clock Jitter,” proc Of IEEE Int. Symp. On Circuits and Systems, ISCAS 2010.
  28. Maghari, S. Kwon, G. C. Temes, and U. Moon, “74dB SNDR Multi-Loop Sturdy-MASH Delta-Sigma Modulator Using 35dB Opamp Gain,” IEEE Custom Integrated Circuits Conference (CICC), pp. 101-104, Sep 2008.
  29. Maghari and U Moon, “Multi-loop efficient Delta-Sigma Modulators” IEEE International Symposium on Circuits and Systems, ISCAS, pp. 1216-1219, May 2008.
  30. Rajaee, N. Maghari and U. Moon “Time-Shifted CDS Enhancement of Comparator-Based MDAC for Pipelined ADC Applications,” IEEE Int. Conf. on circ. And Syst. ICECS 2007, pp 210-213, Dec 2007.
  31. Maghari, S. Kwon, G. C. Temes, and U. Moon, “Mixed-order sturdy MASH Δ-Σ modulator” proc. Of IEEE Int. Symp. On Circuit and System, ISCAS, May 2007, pp 257-260
  32. Maghari, and O. Shoaei, “A Dynamic Start-Up Circuit for Low Voltage CMOS Current Mirrors with Power-Down Support,” IEEE International Symposium on Circuits and Systems, ISCAS, pp. 4265-4268,2005.
  33. Maghari,M. Yavari, and O. Shoaei, “A Novel Model for the Slewing Behavior of Two-Stage CMOS OTAs,” IEEE International Symposium on Circuits and Systems, ISCAS, pp. I 553-556,2004.