monolithic technology


• Bipolar
– Workhorse of “old” analog
– Available from a handful of vendors
– Speed/power advantage over CMOS (diminishing)
– Low integration density
• Standard CMOS
– Suitable for most analog designs
– Best for combining analog and digital
– Highest integration density
– Widely available
– Short life cycle (3 years/generation)
• BiCMOS
– Complex process, viability uncertain
• Silicon on insulator (SOI)
– Modest speed advantage for digital
– Drawbacks for analog
• SiGe
– Complexity equivalent to BiCMOS
– Extremely fast bipolar device plus submicorn CMOS
– Availability increasing
• GaAs
– Unsuitable for wideband analo