Publications:

**Journal Papers**

- Y. Liu,
**R. Lotfi**, Y. Hu, and W. A. Serdijn, “ A Comparative Analysis of Phase-Domain ADC and Amplitude-Domain IQ ADC,” Accepted to be published in IEEE Transactions on Circuits and Systems-I. - S. R. Hosseini, M. Saberi,
**R. Lotfi**, “ A Low-Power Subthreshold to Above-Threshold Voltage Level Shifter,” in IEEE Transactions on Circuits and Systems-II, vol. 61, no. 10, pp. 753-757, Oct. 2014. - M. Taherzadeh-Sani.,
**R. Lotfi**, and F. Nabki, “ A 10-bit 110 kS/s 1.16 µW SA-ADC with a Hybrid Differential / Single-Ended DAC in 180 nm CMOS for Multi-Channel Biomedical Applications,” in IEEE Transactions on Circuits and Systems-II, vol. 61, no. 8, pp. 584-588, Aug. 2014. - S. Babayan,
**R. Lotfi**, “Analysis and Design of a Low-Voltage Low-Power Double-Tail Comparator,” in IEEE Transactions on VLSI Systems, Vol. 22, No. 2, pp. 343-352, Feb. 2014.**AMONG 100 MOST DOWNLOADED PAPERS OF IEEE IN JAN. 2014 and also AMONG MOST DOWNLOADED PAPERS OF TVLSI IN Feb. 2014 and Mar. 2014.** - N. Ravanshad, H. Rezaee-D.,
**R. Lotfi**, Yong Lian “A Level-Crossing Sampling-Based QRS Detection Algorithm for Wearable Wireless ECG Sensors,” in IEEE Journal of Biomedical and Health Informatics, Vol. 18, No. 1, pp. 182-192, Jan. 2014.**AMONG MOST DOWNLOADED PAPERS OF JBHI IN Feb. 2014** - M. Saberi,
**R. Lotfi**, “Segmented Architecture for Successive-Approximation Analog-to-Digital Converters,” in IEEE Transactions on VLSI Systems, Vol. 22, No. 3, pp. 593-606, Mar. 2014. - M. Judy, A.M. Sodagar,
**R. Lotfi**, M. Sawan, “Non-linear Signal-Specific ADC for Efficient Neural Recording in Brain-Machine Interfaces,” in IEEE Transactions on Biomedical Circuits and Systems, Vol. 8, Issue 3, pp. 371-381, June 2014. . - E. Rahiminejadn,
**R. Lotfi**, “A Signal-Specific Integrating Analog-to-Digital Converter,” in Journal of Electrical Systems and Signals, Vol. 1, No.1, March. 2013. - S. Babayan,
**R. Lotfi**, “An Offset Cancellation Technique for Comparators Using Body-Voltage Trimming,” in Analog Integrated Circuits and Signal Processing, Vol. 73, Issue. 3, pp. 673-682, Dec. 2012. - S. M. Fahmideh,
**R. Lotfi**, M. Maymandi-Nezhad, “Low-voltage low-power Gm-C filters: a modified configuration for improving performance,” in Analog Integrated Circuits and Signal Processing, Vol. 74, Issue. 1, pp. 297-302, Jan. 2013. - H. Rezaee-D., N. Ravanshad,
**R. Lotfi**, K.Mafinezhad, and A. M. Sodagar, “Analysis and design of sensor-interface circuits for neural recording applications,” in IEEE Journal on Emerging and Selected Topics in Circuits and Systems, JETCAS, Vol. 1, No. 4, pp.546-556, Dec. 2011. - M. Houshmand,
**R. Lotfi**, K. Mafinezhad, and H. Mahmoodi, “Impact of NBTI on performance of domino logic circuits in nano-scale CMOS,” in Microelectronics Reliability, Vol. 42, Issue 12, pp. 1327-1334, Dec. 2011. - A. Arian, M. Saberi, S. Hosseini-K.,
**R. Lotfi**, and Y. Leblebici, , “A 10-bit 50-MS/s SAR ADC with split capacitive-array DAC,” in Analog Integrated Circuits and Signal Processing, Springer, Vol. 71, Issue 3, pp. 583-589, 2012. - M. Houshmand,
**R. Lotfi**, K. Mafinezhad, and H. Mahmoodi, “Impact of NBTI on performance of domino logic circuits in nano-scale CMOS,” in Microelectronics Journal Elsevier Publisher, Vol. 42, pp. 1327-1334, Dec. 2011. - M. Saberi,
**R. Lotfi**, K. Mafinezhad, and W. A. Serdijn, “Analysis of Power Consumption and Linearity in Capacitive Digital-to-Analog Converters Used in Successive Approximation ADC,” in IEEE Transactions on Circuits and Systems-I,Vol. 58, No. 8, pp. 1736-1748, August 2011. - M. Houshmand, and
**R. Lotfi**, K. Mafinezhad, and H. Mahmoodi, “An optimization method for NBTI-aware design of domino-logic circuits for nano-scale CMOS,” in IEICE Electronics Express, ELEX, Vol. 8, No.17, pp.1406-1411, Sep. 2011. - M. Saberi, H. Sepehrian, and
**R. Lotfi**, “A low-power successive-approximation ADC for biomedical applications,” in IEICE Electronics Express, ELEX, Vol. 8, No.4, pp.195-201, Feb. 2011. - H. Aminzadeh,
**R. Lotfi**, K. Mafinezhad, “Low-dropout voltage reference: an approach to low-temperature-sensitivity architectures with high drive capability,” in IET Electronics Letters, Vol. 45, No.24, pp.1200-1201, Nov. 2009. - H. Rezaee-D., N. Ravanshad,
**R. Lotfi**, K. Mafinezhad, “Modified Model for Settling Behavior of Operational Amplifiers in Nano-Scale CMOS,” in IEEE Transactions on Circuits and Systems-II, Vol. 56, No.5, pp.384-388, May 2009. - H. Aminzadeh,
**R. Lotfi**, “Design of Low-Power Single-Stage Operational Amplifiers Based on an Optimized Settling Model,” in Analog Integrated Circuits and Signal Processing, Springer Publishers, Vol. 58, No. 2, pp.153-160, Feb. 2009. - H. Aminzadeh, K. Mafinezhad,
**R. Lotfi**, “Design of three-stage nested-miller compensated operational amplifiers based on settling time,” in Intl. Journal of Circuits, Systems and Signal Processing, Vol. 3, No.3, pp. 164-172, 2009. - H. Aminzadeh,
**R. Lotfi**, K. Mafinezhad, “Low-cost area-efficient low-dropout regulators using MOSFET capacitors,” in IEICE Electronics Express, ELEX, Vol. 5, No.16, pp.610-616, August. 2008 - S. A. Zabihian,
**R. Lotfi**, “A sub-1V high-gain single-stage operational amplifier,” in IEICE Electronics Express, ELEX, Vol. 5, No.7, pp.211-216, Apr. 2008. - H. Aminzadeh, M. Danaie,
**R. Lotfi**, “Design of high-speed two-stage cascode-compensated operational amplifiers based on settling time and open-loop parameters,” in Integration, the VLSI Journal, Vol. 41, Feb. 2008, pp. 183-192. - H. Aminzadeh,
**R. Lotfi**, “On the Power Efficiency of Cascode Compensation over Miller Compensation in Two-Stage Operational Amplifiers,” Journal of Circuits, Systems and Computers, JCSC, Vol. 16, No. 6, Feb. 2008. - H. Aminzadeh
**R. Lotfi**, "Design Guidelines for High-Speed Two-Stage CMOS Operational Amplifiers," Arabian Journal of Science and technology (AJSE), Vol. 32, No. 2C, Dec. 2007. - M. Taherzadeh-Sani,
**R. Lotfi**, and O. Shoaei, “Analysis of dynamic non-linearities in pipelined ADCs,” in IEICE Trans. Electronics, June 2004. - M. Taherzadeh-Sani,
**R. Lotfi**, and O. Shoaei, “A pseudo-class-AB telescopic-cascode operational Amplifier,” in IEE Electronics Letters, Feb. 2004. **R. Lotfi**, M. Taherzadeh-Sani, M. Y. Azizi, and O. Shoaei, “Low-Power Design Techniques for Low-Voltage Fast-Settling Operational Amplifiers in Switched-Capacitor Applications,” in Integration, the VLSI Journal, Elsevier Publisher, vol.36/4, pp.175-189, 2003.

**Conference Papers**

- S. Babayan -M., M. Daliri,
**R. Lotfi**, “Analysis of power in dynamic comparators,” in Proc. of 21st Iranian Conf. on Electrical Engineering, pp. 1-5, May, 2013. - N. Ravanshad, H. Rezaee -D.,
**R. Lotfi**, “Detailed study of time estimation in level-crossing analog-to-digital converters,” in Proc. of 21st Iranian Conf. on Electrical Engineering, pp. 1-5, May, 2013. - S. R. Hosseini -B.,
**R. Lotfi**, “Modified structures for power-efficient level translators,” in Proc. of 21st Iranian Conf. on Electrical Engineering, pp. 1-5, May, 2013. - F. Daneshvar, S. Moghimi,
**R. Lotfi**, “Pressure ulcer risk assemssment by monitoring interface pressure and temperature,” in Proc. of 21st Iranian Conf. on Electrical Engineering, pp. 1-5, May, 2013. - S. Moradi, E. Maghsoudloo,
**R. Lotfi**, “New charge-balancing method based on imbalanced biphasic current pulses for functional electrical estimulation,” in Proc. of 20th Iranian Conf. on Electrical Engineering, pp. 270-274, May, 2012. - S. H. Nasrollaholhosseini, S. Babayan-M.,
**R. Lotfi**, “Power reduction techniques in a 6-bit 1GSps flash ADC,” in Proc. of 20th Iranian Conf. on Electrical Engineering, pp. 228-231, May, 2012. - S. Masoodian,
**R. Lotfi**, “A power-efficient CMOS active pixel sensor imager with column-level difference ADC in 0.18-um CMOS,” in Proc. of 20th Iranian Conf. on Electrical Engineering, pp. 97-100, May, 2012. - S. Babayan, S. H. Nasrollahalhoseini, H. Sepehrian and
**R. Lotfi**, “An offset cancellation technique for comparators using body-voltage trimming,” in Prof. IEEE NEWCAS, pp. 273-277, 2011. - H. Rezaee-D., N. Ravanshad,
**R. Lotfi**and K. Mafinezhad, “A linear tunable amplifier for implantable neural recording application,” in Midwest Symposium on Circuits and Systems, MWSCAS 2011. - H. Sepehrian, M. Saberi, and
**R. Lotfi**, “A signal-specific successive-approximation analog-to-digital converter”, Accepted to be presented in IEEE International Symposium on Circuits and Systems, ISCAS, 2011. - M. Judy, A. M. Sodagar, and
**R. Lotfi**, “A nonlinear signal specific ADC for efficient neural recording,” in Proc. IEEE International Conference on Biomedical Circuits and Systems, BioCAS, pp. 17-20, 2010. - M. Zaare,
**R. Lotfi**, and M. Maymandinezhad, “Capacitor Scaling for Low-Power Design of Cyclic Analog-to-Digital Converters” in Proc. IEEE International Symposium on Circuits and Systems, ISCAS, pp. 1456-1459, 2010. - S. M. Hokmabadi,
**R. Lotfi**, “Linearity Enhancement in Digital-to-Analog Converters Using a Modified Decoding Architecture”, in Proc. IEEE International Symposium on Circuits and Systems, ISCAS, pp. 3361-3364, 2010. - Mohammad Takhti, Amir M. Sodagar, and
**R. Lotfi**, “Domino ADC: A Novel Analog-to-Digital Converter Architecture”, in Proc. IEEE International Symposium on Circuits and Systems, ISCAS, pp. 4057-4060, 2010. - S. Al-Ahdab,
**R. Lotfi**, and W.A. Serdijn, “A 1-V 225-nW current successive approximation ADC for pacemakers,” in 2010 Conference on PhD Research in Microelectronics and Electronics, PRIME, pp. 1-4, 2010. - M. Saberi, and
**R. Lotfi**, “Analysis of the Linearity of Pipelined ADC Due to Capacitor Non-linearity," in Proc. IEEE Intl. Conf. on Electronics, Circuits, and Systems, ICECS 2009, pp. 403-406, 2009. - E. Rahiminejad, and
**R. Lotfi**, “A Low-Power Architecture for Integrating Analog-to-Digital Converters," in Proc. IEEE Intl. Conf. on Electronics, Circuits, and Systems, ICECS 2009, pp. 411-414, 2009. **R.Lotfi**, R. Majidi, M. Maymandi-Nejad, W.A. Serdijn, “An Ultra-Low-Power 10-Bit 100-kS/s Successive-Approximation Analog-to-Digital Converter,“ in Proc. of IEEE International Symposium on Circuits and Systems, pp.1117-1120, ISCAS 2009.- S. M. Hokmabadi,
**R. Lotfi**, M. Saberi, “A 1-V 10-bit 80MS/s Current-Steering DAC Using Body-Driven Enhanced-Impedance Current Source,” in Proc. of Iranian Conf. on Electrical Engineering, (in Persian) May, 2008. - S. M. Hokmabadi,
**R. Lotfi**, “Modified Decoding Structure in Current-Steering DACs to Improve Linearity,” in Proc. of Iranian Conf. on Electrical Engineering, (in Persian) May, 2008. - S. M. Hokmabadi, S. A. Zabihian and
**R. Lotfi**, “Body-Driven Enhanced-Impedance Current Source: An Approach to the Implementation of Low-Voltage Current-Steering D/A Converters,” in Proc. of IEEE Intl. Conf. on Electronics, Circuits, and Systems, ICECS 2007. - M. Saberi, and
**R. Lotfi**, “A Capacitor Mismatch- and Nonlinearity-Insensitive 1.5-Bit Residue Stage for Pipelined ADCs ,” in Proc. of IEEE Intl. Conf. on Electronics, Circuits, and Systems, ICECS 2007. - H. Aminzadeh, M. Danaie, and
**R. Lotfi**, “Design of High-Resolution MOSFET-Only Pipelined ADCs with Digital Calibration,” in Proc. of DATE (Design Automation and Test in Europe) Conference, 2007. - S. A. Zabihian,
**R.Lotfi**, “Ultra-Low-Voltage, Low-Power, High-Speed Operational Amplifiers Using Body-Driven Gain-Boosting Technique “ in Proc. International Symposium on Circuits and Systems (ISCAS), 2007. - H. Sarbishaei, T. Kahookar T., E. Zhian T., and
**R. Lotfi**, "Power optimization in low-voltage high-speed high-resolution pipelined ADCs," in Proc. IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), 2006. - H. Shamsi, S. Radiom,
**R. Lotfi**, and O. Shoaei, "A straightforward design methodology for multi-bit continuous time delta-sigma modulators," in Proc. IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), 2006. - M. Nabavi, and
**R. Lotfi**, "A 1-V 12-bit switched-opamp pipeline ADC with power optimization," in Proc. of International Symposium on Circuits and Systems (ISCAS), Greece, 2006. - H. Charkhkar, A. Asadi, and
**R. Lotfi**, "A 1.8-V 10-bit 40MS/s MOSFET-only pipeline analog-to-digital converter," in Proc. of International Symposium on Circuits and Systems (ISCAS), Greece, 2006. - T. Kahookar T., E. Zhian T., H. Sarbishaei, and
**R. Lotfi**, "ISECAD: An iterative equation-simulation-based opamp-design CAD tool," in Proc. of International Symposium on Circuits and Systems (ISCAS), Greece, 2006. - S. Radiom, B. Sheikholeslami, H. Aminzadeh, and
**R. Lotfi**, "Folded current-steering DAC: An approach to low-voltage high-speed high-resolution D/A converters," in Proc. International Symposium on Circuits and Systems (ISCAS), Greece, 2006. - H. Adrang,
**R. Lotfi**, A. Tajalli, and S. Mehrmanesh, "A low-power CMOS Gm-C filter for wireless applications with on-chip automatic tuning," in Proc. International Symposium on Circuits and Systems (ISCAS), Greece, 2006. - H. Aminzadeh, and
**R. Lotfi**, "New analysis for cascode compensation in two-stage operational amplifiers," in Proc. Northeast Workshop on Circuits and Systems, NEWCAS’06. - M. Nabavi, and
**R. Lotfi**, "Switched-Capacitor Reference Voltage Generator for Deep Low-Voltage High-Resolution Pipelined ADCs" in 5th International Conference for Upcoming Engineer, ICUE 2006. - M. Nabavi, and
**R. Lotfi**, "Switched-opamp technique for 1-V 12-bit ADC," in Proc. Midwest Symposium on Circuits and Systems (MWSCAS), Cincinnati, 2005, pp.851-854. - H. Sarbishei, T. K. Toosi, E. Zhian, and
**R. Lotfi**, "A high-speed high-gain low-power class-AB operational amplifier," in Proc. Midwest Symposium on Circuits and Systems (MWSCAS), Cincinnati, 2005, pp.271-274. - M. Danaie, and
**R. Lotfi**, "A low-voltage high-PSRR CMOS PTAT and constant-gm reference circuit," in Proc. Midwest Symposium on Circuits and Systems (MWSCAS), Cincinnati, 2005, pp.1807-10. - M. Nabavi, and
**R. Lotfi**, "Design of an ultra-low-voltage switched-opamp pipelined ADC," (in Persian) in Proc. of Iranian Conf. on Electrical Engineering, ICEE, 2007. - M. Saberi, M. Hokmabadi, and
**R. Lotfi**, "A 10-bit 20MS/s 1-V pipelined ADC using the switched-opamp technique and gate-bulk capacitances of MOSFETs,” (in Persian) in Proc. of Iranian Conf. on Electrical Engineering, ICEE, 2007. - M. H. Maghami,
**R. Lotfi**, "Automatic design of operational amplifiers using geometric programming,” (in Persian) in Proc. of Iranian Conf. on Electrical Engineering, ICEE, 2007. - H. Aminzadeh,
**R. Lotfi**, "Design of MOSFET-only pipelined ADCs using digital calibration,” (in Persian) in Proc. of Iranian Conf. on Electrical Engineering, ICEE, 2007. - S. A. Zabihian,
**R. Lotfi**, "Low-Voltage very- High-Gain High-Speed Operational Amplifier Using Body-Driven Gain-Boosting Technique,” in Proc. of Iranian Conf. on Electrical Engineering, ICEE, 2007. - R. Ghasemi, H. Charkhkar, A. Asadi,
**R. Lotfi**, k. Mafinezhad "Design of low-voltage MOSFET-only switched-capacitor filters," in Proc. International Conference on Microelectronics, ICM 2005. **R. Lotfi**, M. Taherzadeh-Sani, and O. Shoaei, "Power consumption issues in high-speed high-resolution pipelined analog-to-digital converters," in proceedings of International Symposium on Circuits and Systems (ISCAS), Kobe, Japan, pp. 4618-4621, 2005.**R. Lotfi**, M. Taherzadeh-Sani, M. Y. Azizi, and O. Shoaei, "Systematic Design for Power Minimization of Pipelined Analog-to-Digital Converters," in proceedings of International Conference on Computer Aided Design (ICCAD), San Jose, CA, USA, pp. 371-374, 2003.**R. Lotfi**, M. Taherzadeh-Sani, O. Shoaei, “A 12-bit 40MSPS 3.3-V 56-mW Pipelined A/D Converter in 0.25-um CMOS,” in Proc. of IEEE International Symposium on Circuits and Systems, ISCAS 2004, vol.1, pp.I-69- I-72.**R. Lotfi**, M. Taherzadeh-Sani, M. Y. Azizi, and O. Shoaei, "Systematic Design for Optimization of High-Resolution Pipelined Analog-to-Digital Converters," in proceedings of International Symposium on Low Power Electronic Design (ISLPED), South Korea, pp. 334-339, 2003.**R. Lotfi**, M. Taherzadeh-Sani and O. Shoaei, "A 1.5-V 12-bit 75M-Samples/s Fully-Differential Low-Power Sample-and-Hold Amplifier in 0.25-um CMOS," in proceedings of International Conference on Electronics, Circuit and Systems, (ICECS), pp. 814-817, 2003.**R. Lotfi**, M. Taherzadeh-Sani, M. Y. Azizi, and O. Shoaei, "A 1-V MOSFET-Only Fully-Differential Dynamic Comparator For Use in Low-Voltage Pipelined A/D Converters," in proceedings of Signal Circuit and Systems Conference (SCS), Romania, pp. 377-380, 2003.**R. Lotfi**, O. Shoaei, “A Low-Voltage Low-Power Fast-Settling Operational Amplifier for Use in High-Speed High-Resolution Pipelined A/D Converters,” in Proc. of IEEE International Symposium on Circuits and Systems, ISCAS 2002, vol.2, pp.416-419.- M. Taherzadeh-Sani,
**R. Lotfi**, and O. Shoaei, "Systematic Design for Optimization of High-Resolution Pipelined ADCs," in proc. Design Automation and Test in Europe, ip1_08, (DATE), 2004. - M. Taherzadeh-Sani,
**R. Lotfi**, and O. Shoaei, "A Statistical Approach to Estimate the Dynamic Non-linearity Parameters of Pipeline ADCs," in proceedings of International Conference on Computer Aided Design (ICCAD), San Jose, CA, USA, pp. 367-370, 2003. - M. Taherzadeh-Sani,
**R. Lotfi**, and O. Shoaei, "An Analytical Approach to the Estimation of Dynamic Non-linearity Parameters in Pipeline A/D Converters," in proceedings of European Solid State Circuits Conference, (ESSCIRC), Portugal, pp. 715-718, 2003. - M. Taherzadeh-Sani,
**R. Lotfi**, and O. Shoaei, "A Novel Frequency Compensation Technique for Two-Stage CMOS Operational Amplifiers," in proceedings of International Conference on Electronics, Circuit and Systems, (ICECS), pp. 256-259, 2003. - M. Taherzadeh-Sani,
**R. Lotfi**, and O. Shoaei, "An Analytical Approach to the Estimation of Spurious Free Dynamic Range in Pipeline A/D Converters," in proceedings of International Conference on Electronics, Circuit and Systems, (ICECS), pp. 946-949, 2003. - M. Taherzadeh-Sani,
**R. Lotfi**, H. Z. Hoseini, and O. Shoaei, "Design Optimization of Analog Integrated Circuits Using Simulation-Based Genetic Algorithm," in proceedings of Signal Circuit and Systems Conference(SCS), Romania, pp. 73-76, 2003. - M. Taherzadeh-Sani,
**R. Lotfi**, H. Z. Hoseini, and O. Shoaei, "A High Slew-Rate Low-Voltage Low-Power Operational Amplifier Using a New Current Injection Circuit," in proceedings of Signal Circuit and Systems Conference(SCS), Romania, pp. 481-484, 2003. - A. Ahmadi,
**R.Lotfi**, M. Sharif-Bakhtiar, “A novel rail-to-rail input constant-gm operational amplifier, “ Proc. of IEEE Intl. Symp. on Low-Power Electronics and Design, ISLPED 2003. - Z. Olia,
**R.Lotfi**, and S. H. Keshmiri, “A 1-V 10-bit 10MS/s switched-opamp A/D converter,” in Proc. of 12th Iranian Conference on Electrical Engineering, ICEE 2004. - H. Aslanzadeh, S. Mehrmanesh, V. Vahidfar, S. Safarian,
**R. Lotfi**, “ A 1-V 1-mW high-speed class-AB operational amplifier for high-speed low-power pipelined A/D converters using Slew Boost Technique“ accepted to be published in Proc. of IEEE Intl. Symp. on Low-Power Electronics and Design, ISLPED 2003. - H. Ghandeharion, M. Tabandeh,
**R. Lotfi**, ”A 0.8-V 900-MHz CMOS low-noise amplifier” in Proc. of 11th Iranian Conf. On Electrical Engineering, ICEE 2003. - T. Kahookar T., E. Zhian T., H. Sarbishaei, and
**R. Lotfi**, "Automatic CAD-tool for high-performance operational amplifiers based on equation and simulation," accepted to be presented in 14th Iranian Conference on Electrical Engineering, ICEE 2006. - M. Danaie, H. Rezaee, and
**R. Lotfi**, "A CAD tool for design of linear MOSCAP structures using modified version of genetic programming," accepted to be presented in 14th Iranian Conference on Electrical Engineering, ICEE 2006. **R. Lotfi**, S.M. Atarodi, ”A new transistor configuration for use in a low-voltage low-power operational amplifier,” in 8th Iranian Conference on Electrical Engineering, ICEE 2000, pp. 81-86.**R. Lotfi**, S.M. Atarodi, ”A low-voltage low-power switched-capacitor filter using a new transistor configuration,” in Proc. of IEEE International Conference on Microelectronics, ICM 2000, pp.99-102.- M. Esmaeili, M. F.Baroughi,
**R. Lotfi**, ” Micro-machining, A Tutorial,” in the first Iranian Student Conference on Electrical Engineering, ISCEE 1998.

**Other Technical Contributions**

- H. Rezaee-D., N. Ravanshad,
**R. Lotfi**and K. Mafinezhad, “A linear tunable amplifier for implantable neural recording application,” presented in CASFEST 2011 Workshop. **R. Lotfi**, PhD Research abstract: “Systematic design for power minimization of pipelined A/D converters,” presented in 2nd EDAA PhD forum at DATE 2004.**R. Lotfi**, PhD Research abstract: “A low-power design methodology for operational amplifiers in pipelined A/D converters,” accepted to be presented in 1st EDAA PhD forum at DATE 2003.