Analog Circuit Design Engineer

Posted on: 2008-09-12

Balasubramanian Sivakumar Member, The Analog VLSI Lab, The Ohio State University, Columbus IEEE Student member, Communications, Circuits and Systems Societies E-mail: [email protected] Phone: 614-961-6149 Residence: 1444D, Worthington Ave, Columbus, Ohio-43201, USA Web page : bala.co.nr Goal- To be a part of a team of highly motivated designers in a company that provides excellent learning opportunities and in turn satisfy the thirst for knowledge. Keywords - Analog Circuit Design, VLSI, RF Circuit Design, High Speed Analog to Digital Converters, Phase Locked Loops, VHDL, RTL, Logic Design, Cadence, Layout Design, Clock and Data Recovery, TSMC 0.18um, DNA Classification, bio-technology, image processing.. MASTER OF SCIENCE (M.S.) Aug’07 – Dec’08 (Expected) • Majoring in Analog VLSI. Pursuing M.S. at The Analog VLSI Lab, The Department of Electrical and Computer Engineering, The Ohio State University, Columbus, Ohio, USA. CGPA: 3.76 / 4 (Up to 3 quarters; Joined OSU in Fall 07). TOEFL CBT Score: 283/ 300 GRE Score: 1360/1600 (Verbal: 560/800, Quantitative: 800/800, Essay: 4.5/6) SPEAK test: 260/300 BACHELOR OF ENGINEERING (B.E.) July’03 – May’07 • B.E. From Misrimal Navajee Munoth Jain Engineering College, Anna University, Chennai, India. Rank in the Department of ECE: 6th out of 99 students. COMPUTER SKILLS Skills/Tools • Cadence (Virtuoso, Spectre, Analog Design Environment and Virtuoso Layout Editor), TopSpice • Advanced Design Systems (ADS) from Agilent for RF Circuit Design. • Matlab versions 5, 5.5, 6, 6.1, 6.5, 7.2 • FPGA system design using Altera Quartus, AHDL, VHDL, Modelsim; RTL and gate level design. • Technologies worked on: 0.18um CMOS from TSMC, 0.35um CMOS from TSMC and 0.5um CMOS from NCSU. • C, HTML. Operating Systems • Microsoft Windows (3.1, 95, 98, ME, XP, Vista) • Macintosh OSX (basic knowledge) • Linux (Ubuntu, Red Hat) RELEVANT COURSE WORK Fall’07 Sep’07 – Dec’07 • Introduction to Analog Integrated Circuits, Introduction to Digital Signal Processing, Microwave Circuits Winter’07 Jan’08 – Mar’08 • Low Power Mixed Signal VLSI Design, Microwave Transistor Amplifiers and Oscillators, Digital Logic Lab Spring’07 Apr’08 – June’08 • Introduction to RF Integrated Circuits, Digital and Mixed Signal VLSI Design, Analog VLSI Design, Seminar on Bio Medical Imaging. Fall’08 Sep’08 – Dec’08 • Advanced Computer Design. • Thesis: A 6-bit, 4Gsps Sub-ranging Flash ADC in 0.18um CMOS with digitally controlled speed and power. RESEARCH Research Interests Aug’07 - Dec’08 High Speed Analog to Digital Converters, Phase Locked Loops, Bio-Technology, Image Processing. Member of the research group of The Analog VLSI Laboratory founded and directed by Professor Mohammed Ismail. CURRENT AREAS OF WORK Mar’08 – Dec’08 Flash Analog to Digital Converter: • Developed a High Speed CMOS subranging Flash ADC for UWB applications. 2 stage sub ranging 6 bits 2.5 Gsps Flash consuming 30mW with digital speed and power setting. Jun’08 – Sep’08 Phase Locked Loops: • Developed and optimized the phase locked loop for a clock and data recovery circuit working at 2 Gbps and a clocking frequency of 2 GHz in a 0.35um CMOS technology for a Clock and Data Recovery System. IEEE RECOGNISED PUBLICATIONS • Balasubramanian Sivakumar, Athreya Vydhyanathan, Mohammed Ismail, (2008), “A 1.33 Gsps 5-bit 2 Stage Pipelined Flash Analog to Digital Converter for UWB Applications Targeting 8 stage Time Interleaving Architecture”, MNRC 2008, Ottawa, Canada, October 14-15, 2008. [Also selected at WASET 2008, Venice, Italy; ICACTE 08, Pukhet, Thailand]. • Balasubramanian Sivakumar, Shankar Thirunakarasu, (2008), “Current Pumping and Voltage Pulling, an Application to a 2.5 Gsps Flash ADC”, published at ICACTE 2008, Pukhet, Thailand, December 20-22, 2008. [Also selected at WASET 08, Venice, Italy]. • Balasubramanian Sivakumar, Bharath Anand, Winston Paul, (2007), “Development of Protocol for Multi-User Wireless CDMA Computer Network with Variable Data Rate and Dynamic Code Length Allocation in Ad-Hoc Mode”, ICCIMA, Sivakasi, India, Dec 14-15, 2007. • Balasubramanian Sivakumar, (2005), “Image Encryption Using Infinte Series Convergence”, The International Conference on Systems Engineering, 2005 (ICSENG’05), University of Nevada, Las Vegas, USA, Aug.16-18, 2005. PROJECTS COMPLTED • Developed a 1.33 GSPS, 5 bit pipelined flash ADC aimed at time interleaved architecture having eight levels of interleaving, developed layout, performed corner and Monte Carlo simulations. • Constructed a Narrow Band Filter at 2.4 GHz, with a bandwidth of 22MHz, for an 802.11 filter. • Constructed a Class F Amplifier for a microwave circuit operating at 2 GHz. • Developed the protocol, software(in Matlab) and simulated the hardware(in VHDL) for a wireless computer network working with symbol synchronous CDMA technology in Ad Hoc mode with dynamic code and code length allocation for variable data rates for my final year project in under graduate. • Constructed a low power, medium range FM signal and speech transmitter for the 3rd semester mini project in under graduate. PREVIOUS WORK • Image processing in medical imaging, to detect fractures, tumors etc. Image encryption through scrambling using an infinite series and its convergence value as an encipher algorithm which was developed. This algorithm produces zero error decryption. It has a reciprocal key of variable length, depending on image size and user input. It is usually around 88 bits, i.e. an 88 bit key. • Data compression using polynomial, Gaussian, Bessel function approximations of data and positions. These processes are only very good approximations but not accurate. This method promises to provide a compression ratio such that it requires only around 90 coefficients in the place of data lengths much larger than 1.5*10^7. POSITIONS HELD • Author for the Matlab tutorial for Electronz, the ECE department News Letter in MNMJEC. • Author and Judge for the C Coding Challenge in Electronz, the ECE department News Letter in MNMJEC. • Received an invitation to join the International High IQ Society, after securing an IQ Score of 134. • Editor for Electronz, the ECE department News Letter in MNMJEC. • Organizer for the LAN games for the ECE department symposium in MNMJEC. • Member of IEEE, member of Circuits and Systems and Communications societies. SUMMER INTERNSHIP Jun’08 – Sep’08 Summer Internship at The Integrated Systems Lab at Anna University, India worked under Prof. P.V.Ramakrishna. Worked on optimization of PLLs, Matlab modeling of filters, matching networks for Low Noise Amplifiers and bio-technology. References: Prof. Mohammed Ismail.