Aparajan Ganesan
**** ***** ** ***, ******, TX **719
***@******.**.***
Skype ID: Spinoza178
BOTTOM LINE
Won the top 100 products award from electronic design
Well known in the industry for breakthrough products such as:
oSingle Chip Modems
oHigh Precision Delta Sigma A/Ds
oClosed captioning for Broadcast TV
oThe 8-pin CD Stereo D/A
oThe CMOS Electret and The Expander
oThe Single Chip CMOS Telephone
oThe CALAMP
oThe Composite Video Decoder
oVarious Codecs
oThe CMOS Channel Service Unit, etc.
Reputation for delivering cutting edge products many years ahead of competitors
Has trained and taught engineers working in different companies all over the world
Has extensive teaching experience as an adjunct faculty throughout his career in many universities
Is a specialist in Mixed Signal System Theory, Architecture and Circuit Design
WORK EXPERIENCE
Ganesan Designs 07/93 – Present
Since 1993, involved in defining, designing and marketing audio, video, radio multimedia, power supervisors, disk-drive, datacom, telecom, etc. products
Used CMOS, Bipolar and BiCMOS technologies
Clients include Texas Instruments, Intel, Motorola, Tanner Research, Samsung, GEC Plessey, etc.
The last contract worked on was a power management chip for solid state drives
oInvolved an hysterectic control architecture
oHad all the power transistors integrated and used a copper pillar RDL technology and had an EEPROM chip on chip in addition
oThe chip supports 4 buck regulators and one boost regulator and a whole bunch of programmable functions like start up, in rush current, etc.
oThe most difficult aspects of the design were:
Keeping the high voltage transients acceptable
Keeping the sleep mode current low
Fast response to transient load changes
Meeting the cross regulation requirements which turned out to be a bear
oChip is going though its 3rd iteration now; being made in Dongbu's BiCMOS
Prior to this, worked on a USB current limited switch
Prior to that, worked on a novel CSA (current sense amplifier architecture)
oThis involved sensing millivolts of differential voltages in the presence of +20 to -4 v of common mode voltages and some nasty terminal conditions for enterprise systems, etc.
Prior to that, worked on a ramp less Class D amplifier
Prior to that, worked on a fly-back adapter for a power supply for a drill
Prior to that, worked on high-capacitive drive opamp
Prior to that, worked on a technology scalable 10-bit pipe lined A/D converter
Crystal Semiconductor 09/91 – 06/93
Engineering Manager / Sr. Technologist
Responsible for display and audio products
Involved in defining, designing and marketing audio, video and multi-media products
Extratek, Inc. 11/90 – 09/91
Vice President of Technology
Consulted in the design, test, integration and manufacturing of Mixed Mode Circuits
Analog Devices, Semiconductor Division, Wilmington, MA 08/86 – 11/90
Director of Communication Products (08/88 – 11/90)
Involved with a product family that involved the integration of high performance A/D, D/A, analog filters and drivers (>93db, >20Khz) along with complex Digital Signal Processors
In addition, worked as a senior technologist and helped other ailing product lines
oThe development of higher order delta-sigma A/D and D/A converters as part of this work has been of a fundamental nature
Started a design center for ADI in Japan
Further, served as a Company consultant for strategic markets, signal processing and CMOS circuit design
Engineering Manager (08/86 – 08/88)
Involved in the definition and design of standard products, which included DiA converters, A/D converters, S/H amplifiers and Voltage References
oThis involved the management of 40 folks including CAD and layout
oThis product line at a revenue of 90M+ a year was the largest product line in the company
Also also involved with bipolar, cmos and bicmos technologies and their characterization as a part of this function
Further, helped the corporation invest in emerging ventures of significance as part of their diversification team
One of 2 folks who got ADI into the Digital Audio business
Architected some of the earliest HDTV components for NHK in Japan
AT&T Bell Labs, Middletown, NJ 06/84 – 07/86
Associate Department Head
Involved in the design and development of Integrated Circuits for Data Communications and CAD tools
In addition, had responsibility for strategic planning and external vendor negotiations for the entire data communications laboratory
ICs developed under my responsibility include Switched Capacitor Modems, Integrated Digital Echo Canceller, 14bit A/D and D/A front ends with filters and timing recovery, Modem Interface Circuits which all went into volume production
AT&'I` Bell Labs, Indianapolis, IN 03/82 – 05/84
Supervisor
Involved in the development of low voltage CMOS circuits and technology for telephone applications which worked over a 1 to l2V range
Work included the design of a low cost preamp for electrets, a voice-activated expander for electrets, DTMF generators, Dial Pulse Polarity Guard Switches, Active networks, Tone Ringers, etc.
Also helped develop a modular HV capability to a standard 12V CMOS technology
RCA, Somerville, NJ 10/81 – 02/82
Group Leader
Involved in the design of automotive and Telecom Circuits
Led a set of designers for developing a CODEC and a SLIC
AT&T Bell Laboratories, Holmdel, NJ 03/80 – 10/81
Member Technical Staff, Analog IC Design Group
Fundamental work in the area of switched capacitor networks
Work included design of opamps, comparators, zero-crossing detectors, Schmidt triggers, Filters, oscillators, implementing them in monolithic form and supervising their layout
General Instrument Corporation, Hicksville, NY 06/77 – 03/80
Engineering Manager, CAD Design, Development & Modeling Group
Involved in the characterization and model development for MOS and MNOS devices, supported design and test software and was involved in advanced circuit concepts
In addition, had engineering responsibility for the design and trimming of thick film hybrids
TEACHING EXPERIENCE 06/76 – Present
Throughout this period, served as an adjunct faculty at several schools teaching courses in IC design, MOS modeling and CAD
These include:
oSUNY @ Stonybrook
oSUNY @ Farmingdale
oFairleigh Dickinson
oUniv of MASS @ Lowell
oTexas A&M, etc.
EDUCATION
MSEE, State University of New York, Stony Brook, NY, 1976
BSEE, Indian Institute of Technology (IIT), Madras, India, 1975
PUBLICATIONS
1.Eric Berman, Apparajan Ganesan, William Jorden, Philip Mclaughlin, William Posner, “Video signal data and composite synchronization extraction circuit for on-screen display U. S. Patent No. 5,404,172, April 1995
2.D. G. Marsh and Apparajan Ganesan, “Means of integrating a Microphone in a Standard Integrated Circuit Process”, U. S. Patent No. 7,317,234, January 2008
3.D. G. Marsh and Apparajan Ganesan, “Low noise resistorless band gap reference” U. S. Patent No. 6,864,741, March 2005
4.Karl Renner and Apparajan Ganesan,”Automatic AGC bias voltage calibration in a video decoder”, U. S. Patent No. 6,219,107, April 2001
5.Apparajan Ganesan and Robert Libert, “ CMOS voltage reference with stacked base to emitter voltages” U. S. Patent No. RE35,951, November 1998
6.Frank Sweeny and Apparajan Ganesan, “ Circuit and Method for providing a known logic state at insufficient supply voltage”, U. S. Patent No. 5,550,486 August 1996
7.Apparajan Ganesan, Paul Ferguson and David H. Robertson, “Gain LinearityCorrection for MOS Circuits”, U. S. Patent No. 5,331,221, July 1994
8.Paul Ferguson, Apparajan Ganesan and Robert W. Adams, “Sigma Delta Modulator”, U. S. Patent No. 5,311,181, May 1994
9.Numerous Short courses for MEAD and for Industrial Clients including TI, ADI, Motorola, Samsung, Plessey and Silicon Systems
10.TVP S100 and 6100: Video Encoder and Decoder COMDEX 1997, Texas Instruments Inc.
11.F. Krummenacher, R. Vafadar, A Ganesan and V. Valence, " A High Performance Aumzzeroed CMOS OpAmp with 50microv Offset", ISSCC Digest of Technical Papers, Feb. l997
12.Frank J. Sweeney & Apparajan Ganesan, " Circuit And Method For Providing A Known Logic State At Insufficient Supply Voltage", U. S. Patent No. 5,550,486, August 1996
13.E. B. Berman, A. Ganesan, W. B. H. Jordan, P. R. McLaughlin and W. R. Postner, "Video Signal Data and Composite Synchrimimtion Extraction Circuit for On Screen Display", US; Patent No. 5,404,172, April 1995
14.F. You, S. Embabi, E. Sanchez Sinencio and A Ganesan, "A Design Scheme to Stabilize the Active Gain Enhancement Amplifier", IEEE lnternational Symposium on Circuits and Systems, April 1995
15.K. R. Laker, A. Ganesan and P. E. Fleischer, “ Design and Implementation Of cascaded Switched-Capacitor Delay Equalizers”, IEEE Trans. on Circuits and Systems, Vol. CAS 32, No. 7, pp. 700-711, July 1985
16.S. D. Willingham, K. W. Martin and A Ganesan, “A BiCMOS Low Distortion 8-MHz Low Pass Filter ", IEEE J. Solid-State Circuits, VOL. 28, NO. 12, Dec. 1993
17.A Ganesan, "Testing and Practical Aspects of Data Converters", Integrated A/D and D/A converters: The State of the Art, Lausanne, Switzerland, July 5-9, 1993
18.A Ganesan and R. Liebert,"CMOS voltage reference with stacked base to emitter voltages", US. Patent No. 5,126,653
19.A Ganesan and R. A Morrison, " CMOS Circuit Overvoltage Protection", U. S. Patent No. 4,573,099
20.A Ganesan and W. A Weise, " Method and Apparatus for Capacitive Keyboard Scaiming", U. S. Patent N0. 4,651,133
21.K L. Burscn, S. O. Campbell, A Ganesan and R. A Morrison, "Frcquency Comparator Circuits", U. S. Patent No. 4,677,322
22.P. F. Ferguson, A Ganesan and R. W. Adams, "Sigme Delta Modulators with Distributed Prefiltering and Feedback", U. S. Patent No. 5,055,843
23.R. W. Adams, P. F. Ferguson, Jr., A. Ganesan, S. Vincelette, A Volpe and R. Libert, “Theory and Practical implementation of a Fifth-Order Sigma-Delta A/D Converter", Journal of the Audio Engineering Society, Vol. 39, No. 7/8, 1991 July/August
24.A Ganesan, "Testing and Practical Aspects of Data Converters", Integrated A/D and D/A converters: The State of the Art, Portland, Oregon, July 15-19, 1991
25.Shinichi Hisano, A Ganesan and Tom Guy. " High Resolution D/A Converter Operable With Single Supply Voltage " U. S. patent No. 5,01 0,337
26.AD1879. F. Goodenough, "High Resolution ADCs Up Dynamic Range In More Applications", Electronic Design, April l 1, 1991
27.P. Ferguson, Jr., A Ganesan, R. Adams, S. Vincelette, R. Libert, A. Volpe, D. Andreas, A Charpentler, J Dettorro, " An 18-bit 20 KHzDua1 Sigma Delta A/D Converter ”, ISSCC Digest of Technical Papers, p. 68-69; Feb., 1991
28.R. W. Adams, P. Ferguson and A Ganesan, " Design of Single-bit Noise Shaping Loops with Higher Order Loop Filters", 89th convention of the Audio Engineering Society, September 1990
29.A Ganesan, "Testing and Practical Aspects of Date Converters", Integrated A/D and DIA converters: The State of the Art, Lausanne, Switzerland, July 2-6, 1990
30.P. Ferguson, A Ganesam and R. W. Adams, ” Higher Order Delta Sigma Modulators”, ISCAS, May 1989
31.A. Ganesari, "l988 Technology Forecast: A D and D A Converters To leap In Resolution And Speed", Electronic Desigi, p. 106, January 7, 1988
32.J. H. Fischer, J. L. Sonntag, J. S. Levranchuck, D. P. Ciolini, A Ganesan, D. G. Marsh, W. E. Kessler, J. Plany and L. H. Young, ”Line and Reciever Interface Circuit for High Speed Voice Band Modcms", IEEE J. Solid State Circuits, vol. SC-22, pp. 982-989, December 1987
33.V. R. Saari, D. G. Marsh, D. J. McGuire and A Ganesan, 'A Programmable CMOS Trensciever with 45 dB Automatic Equelimticm", CICC Digest of Technical Papers, May 1987
34.J. Fischer, J. Sonntag, J. Levmnchuk, D. Ciclini, A Ganesan, D. Marsh, W. Keasler, I. Plany, L. Young, " Line and Reciever Interface Circuit for High Speed Voiceband Modems ", IS SCC Digest of Technical Papers, p. 298-299; Feb., 1987
35.R. G. Beale, A Ganesen, G. J. Kustke, P. H. Floyd and D. P. Ciolini, 'ICs for Data Communicetions", IEEE Int. Symp. Circuits Syst., May 1986
36.A J . Kessler and A Ganesan, " An Introduction to standard cel1 VLSI design" IEEE Potentials, pp. 33-36, Oct. 1985
37.K.L. Burson, H. Brown, A Ganesan, "A CMOS preamplifier for an Electret Microphone Application", Proc. IEEE Midwest Symp. On Circuits Syst., Aug. 1985
38.KR. Laker, A. Ganesan and P. E. Fleischer. "Design and Implementation of Cascaded Switched-Capacitor Delay Equa1izers", IEEE Trans. Circuits Syst., Vol. CAS-32, PP- 700 711, July 1985
39.P. E. Fleischer, A.Ganesa.n and K. R. Laker, "A Switched Capacitor Oscillator with Precision Amplitude Control and Guaranteed Start Up", IEEE J. Solid State Circuits, vol. SC-20, pp. 641-647, April 1985
40.A. I. Kessler and A Genesan, " Standard Cell VLSI Design z A Tutorial ", IEEE Circuits and Devices Magazine, pp. 17-34, Jan. 1985
41.K L. Burson, S. H.Esrly and A. Ganesan., " Switched Capacitor Techniques for High Frequency Filters", IEEE Int. Symp. Circuits May 1984
42.K. R. Laker, A Ganesan and P. E. Fleischer, " Design and Implementation of Cascaded Switched Capacitor Delay Equalizers”, IEEE Int. Symp. Circuits Syst., May 1984
43.P. E. Fleischer, A Ganesan and K. R. Laker, " A Switched Capacitor Oscillator with precision Amplitude Control and Guaranteed Start-Up", Proc. ISCAS, May 1984
44.A Ganesan, " Analog Integrated Circuits; Past and Future Trends ", Proc. IEEE Midwest Symp. on Circuits Syst., Aug. 1983
45.K. R. Laker, P. E. Fleischer and A. Ganesan, " Parasitic Insensitive, Biphase Switched Capacitor Filters Realized with One Operational Amplifier per Pole Pair ", B.S.,T.J., 61, pp. 685-708, May/June 1982
46.P. E. Fleischer, A. Ganesan and J.Tow, " Comments on Low-noise state space realization of band-pass active filter", Electronics Letters, 18, No.3, pp. 149, Feb. 4, 1982
47.P. E. Fleischer, A Ganesan and K. R. Laker, "Parasitic Compensated Switched Capacitor Circuits", Electronics Letters, 17, No.24, pp. 929-931, Nov. 26, 1981
48.P. E. Fleischer, A. Gamesan and K. R. Laker, "Effects of Finite Opamp Gain and Bandwidth On Switched Capacitor Filters", Proc. ISCAS, April 1981
49.K. R. Laker, P. E. Fleischer and A Gamesan, " Parasitic Insensitive Switched Capacitor Biquads: A Review," Proc. 1981 IEEE ISCAS, pp 423
50."Monolithic active filters come on strong " Interview tc EDN, March 20, 1980
51.S. S. L. Chang and A. Ganesan, " A Dynamic Interactive Model of Electrical Utility and Community ", Pittsburgh Simulation and Modelling Conti, May 1977
52.R. G. Beale and A Ganesan, " Schmitt Triger Circuit", U. S. patent No. 4581545
53.R. G. Beale and A. Ganesan " Switched Current Mirror ", U. S. patent No. 4544878
54.Ganesan, "Switched Capacitor Circuits " U S. Patent No. 4531106
55.P. E. Fleischer, A Ganesan and K R. Laker, " Switched Capacitor Oscillator Formed by a Damped Resonator with Saturable Feedback", U S. Patent N0. 4492935
56.K L. Burson, S. H. Early & Apparajan Ganesan, " CMOS OPERATIONAL AMPLIFIER ", U. S. patent No. 4,554,515
PAT. NO. – TITLE
1.1 7,317,234 Means of integrating a microphone in a standard integrated circuit process
2.6,864,741 Low noise resistorless band gap reference
3.6,219,107 Automatic AGC bias voltage calibration in a video decoder
4.5,864,310 Wireless receiver with offset compensation using flash-ADC
5.RE35,951 CMOS voltage reference with stacked base-to-emitter voltages
6.5,550,486 Circuit and method for providing a known logic state at insufficient supply voltage
7.5,517,149 Gain linearity correction circuit for MOS circuits
8.5,404,172 Video signal data and composite synchronization extraction circuit for on-screen display
9.5,331,221 Gain linearity correction for MOS circuits
10.5,311,181 Sigma delta modulator
11.5,126,653 CMOS voltage reference with stacked base-to-emitter voltages
12.5,055,843 Sigma delta modulator with distributed prefiltering and feedback
13.5,010,337 High resolution D/A converter operable with single supply voltage
14.4,677,322 Frequency comparator circuits
15.4,651,133 Method and apparatus for capacitive keyboard scanning
16.4,581,545 Schmitt trigger circuit
17.4,573,099 CMOS Circuit overvoltage protection
18.4,554,515 CMOS Operational amplifier
19.4,544,878 Switched current mirror
20.4,531,106 Switched capacitor circuits
21.4,492,935 Switched capacitor oscillator formed by a damped resonator with saturable feedback