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
(FGATM ) 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. FGATM
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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