Solid State Circuits Society

June 17, 2004

Our speaker was  Bhupendra K. Ahuja (Xicor, Inc.), and the topic of his presentation was
“MicroPower Precision Floating Gate Voltage Reference“

Abstract

Precision Voltage references are integral part of any data acquisition system. As opposed to using conventional techniques of Bandgap or Buried Zener, Xicor engineers have come up with very high precision analog voltage references using Floating Gate Analog (FGA^TM ) CMOS technology. By precisely setting a known charge onto an on chip capacitor and buffering its output, a wide range of reference voltages can be programmed. The presentation will provide details on the design techniques and process technology. FGA^TM voltage references feature very high initial accuracy (0.2mV), very low temperature coefficient of ~1ppm/degC, excellent long term stability of less than 10ppm/1000hours, low noise and excellent line and load regulation, at the lowest power consumption currently (500nA typical) available. These voltage references enable advanced applications for precision industrial & portable systems operating at significantly higher accuracy and lower power levels than can be achieved with conventional technologies.

Biography

Bhupendra K. Ahuja (BK) received the B.S. (EE) from the Indian Institute of Technology, Kanpur, India, in 1973 and the M.S. and Ph.D. degrees in Electronics Engineering from Carleton University, Ottawa, Canada, in 1976, and 1978. He started his professional career at Bell Laboratories, Murray Hill, NJ working on the single-chip CMOS codec/filter IC design. From 1980 thru 1992, he worked at Intel Corporation, as a Project Manager for advanced telecommunications products such CODECs and MODEMs. Later, he helped set up Circuit Design Methodology and also designed Clock Generation/ Distribution/Skew Control PLL circuits for first generation Pentium microprocessor. After leaving Intel, he worked at several smaller and startup companies (NeoMagic, Tripath and Genesis Microchip) in Bay area developing Low power high speed mixed analog chips for PC Graphics controller, DVD decoders, ADSL line driver and DVI interface for Flat Panels. From 1999 thru 2002, he worked at Exar corp. as Sr. Director of Engineering leading designs of Communications and Video IC products. Since 2003, he is working at Xicor, Inc. as Director of Design Engineering on high precision analog CMOS products. Dr. Ahuja is a Senior Member of IEEE and has published numerous papers and received several patents in the area of Analog IC designs.

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