The proliferation of wireless communication is driving a
need for very low cost CMOS radios in a number of high volume
applications from cellular phones to WLANS. With the advancement
of digital CMOS, people have speculated on the feasibility
of a "Digital Radio" in which an ADC digitizes the
signal at RF. Such radios are still a long time in the future.
However, there are other approaches to "Digital Radio"
which take advantage of deep submicron CMOS. Because deep
submicron CMOS can be clocked at a few GHz, this enables "conventional"
sampled data analog signal processing techniques to be extended
to the GHz range. Sampled data analog techniques can be used
to filter the RF signal and mix it to baseband or low IF.
This Digital Radio Architecture (DRA) will enable the vision
where very low cost radios are integrated together with digital
processors in deep submicron CMOS for wireless internet applications.
Dennis Buss is currently Vice President of Silicon Technology
Development at Texas Instruments Incorporated with responsibility
for Technology Computer Aided Design (TCAD) and Mixed Signal
Technology. Dennis began his industrial career at Texas Instruments
in July 1969. During the next 18 years, Dennis was TI Fellow
and later Vice President and Director of TI's Semiconductor
Process and Design Center. Between 1987 and 1997, Dennis was
Vice President of technology at Analog Devices. He returned
to Texas Instruments in December 1997. Dennis received his
BS, MS and Ph.D. in Electrical Engineering from MIT in 1963,
1965 and 1968. He served twice on the Electrical Engineering
faculty at MIT in 1968-1969 and 1974-1975. He is an IEEE Fellow
and the recipient of the 1985 Herschel Award and the 1987
Jack A. Morton Award for his pioneering work on HgCdTe Infra-Red
monolithic focal plane technology. In February 2000, Dennis
was selected by the Electron Devices Society to be one of
the recipients of an IEEE Third Millennium Medal.