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nalog circuits are fascinating artifacts. They manipulate signals
whose informa-
Ationcontentisrichcomparedtodigitalsignalsthatcarryminimalamountofinf-
mation;theyaredelicateinthatanyperturbationduetoparasiticelements,todelays,to
interactionswithotherelementsandwiththeenvironmentmaycauseasigni?cantloss
ofinformation.
Thedif?cultyindealingwiththeseartifactsistoprotectthemfromall
possibleattacks, evenminorones, fromthephysicalworld.
Theironyisthattheyare
oftenusedtofunnelinformationfromandtothephysicalworldtoandfromtheabstr-
tionofthedigitalworldandforthisfunction, theyareirreplaceable.
Nowonderthen that analog designers form a club of extraordinary
gentlemen where art (or magic?) ratherthanscienceisthesharedtrade.
Theyaredif?culttotrainsinceexperienceand intuitionarethetraitsthat
characterize them. Andthey have dif?cultiesinexplaining what is the
process they use to reach satisfactory results. Tools used for
design (s- ulation) are mainly replacing the test benches of an
experimental lab. However, the growing complexity of the integrated
systems being designed today together with the increasing fragility
of analog components brought about by shrinking geometries and
reducedpowerconsumptionisposingseverechallengestotraditionalanalogdesigners
to produce satisfactory results in a short time. At the same time,
the need for expe- enced analog designers has increased constantly
since almost all designs, because of
integration,docontainanalogcomponents.
Thissituationhascreatedastronginterest in developing design
methodologies and supporting tools that are based on rigorous,
mathematically literate, approaches. Doing so will make it possible
to leverage the
expertiseofseasonedanalogdesignersandtotrainnewgenerationsfasterandbetter.
Inthepast, severalattemptshavebeenmadeinacademia
andindustrytocreatethese methodologies and to extend the set of
tools available. They have had questionable acceptance in the
analog design community. However, recently, a ?urry of start-ups
andincreasedinvestmentbyEDAcompaniesinnoveltoolssignalasigni?cantchange
inmarketattentiontotheanalogdomain.
Ipersonallybelievethattosubstantially- prove quality and design
time, tools are simply insuf?cient. A design methodology based on a
hierarchy of abstraction layers, successive re?nement between two
ad- cent layers, and extensive veri?cation at every layer is
necessary. To do so, we need to build theories and models that have
strong mathematical foundations. The analog design technology
community is as strong as it has ever been.
nalog circuits are fascinating artifacts. They manipulate signals
whose informa-
Ationcontentisrichcomparedtodigitalsignalsthatcarryminimalamountofinf-
mation;theyaredelicateinthatanyperturbationduetoparasiticelements,
todelays, to
interactionswithotherelementsandwiththeenvironmentmaycauseasigni?cantloss
ofinformation.
Thedif?cultyindealingwiththeseartifactsistoprotectthemfromall
possibleattacks, evenminorones, fromthephysicalworld.
Theironyisthattheyare
oftenusedtofunnelinformationfromandtothephysicalworldtoandfromtheabstr-
tionofthedigitalworldandforthisfunction, theyareirreplaceable.
Nowonderthen that analog designers form a club of extraordinary
gentlemen where art (or magic?) ratherthanscienceisthesharedtrade.
Theyaredif?culttotrainsinceexperienceand intuitionarethetraitsthat
characterize them. Andthey have dif?cultiesinexplaining what is the
process they use to reach satisfactory results. Tools used for
design (s- ulation) are mainly replacing the test benches of an
experimental lab. However, the growing complexity of the integrated
systems being designed today together with the increasing fragility
of analog components brought about by shrinking geometries and
reducedpowerconsumptionisposingseverechallengestotraditionalanalogdesigners
to produce satisfactory results in a short time. At the same time,
the need for expe- enced analog designers has increased constantly
since almost all designs, because of integration,
docontainanalogcomponents. Thissituationhascreatedastronginterest
in developing design methodologies and supporting tools that are
based on rigorous, mathematically literate, approaches. Doing so
will make it possible to leverage the
expertiseofseasonedanalogdesignersandtotrainnewgenerationsfasterandbetter.
Inthepast, severalattemptshavebeenmadeinacademia
andindustrytocreatethese methodologies and to extend the set of
tools available. They have had questionable acceptance in the
analog design community. However, recently, a ?urry of start-ups
andincreasedinvestmentbyEDAcompaniesinnoveltoolssignalasigni?cantchange
inmarketattentiontotheanalogdomain.
Ipersonallybelievethattosubstantially- prove quality and design
time, tools are simply insuf?cient. A design methodology based on a
hierarchy of abstraction layers, successive re?nement between two
ad- cent layers, and extensive veri?cation at every layer is
necessary. To do so, we need to build theories and models that have
strong mathematical foundations. The analog design technology
community is as strong as it has ever be
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