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Design Manager

Del Valle, Texas, United States
July 15, 2018

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Aparajan Ganesan

**** ***** ** ***, ******, TX **719


Skype ID: Spinoza178


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 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


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


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


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.


MSEE, State University of New York, Stony Brook, NY, 1976

BSEE, Indian Institute of Technology (IIT), Madras, India, 1975


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


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

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