Advanced Analog Integrated Cir

Advanced Analog Integrated Circuits
Why is analog design challenging?
􀁺 Digital circuits deal primarily with speed power
tradeoff.
􀁺 Analog circuits deal with multi-dimensional
tradeoff of speed, power, gain, precision,
supply, …
􀁺 Due to speed and precision requirements, analog
circuits are much more sensitive to noise,
crosstalk, and other interferers.
Why is analog design challenging? (cont.)
􀁺 Analog circuits are much more sensitive to
second-order device effects
􀁺 High performance analog circuit design can rarely
be automated - typically require hand-crafted
design and layout
􀁺 Modeling and simulation of analog circuits is still
problematic, requiring experience and instruction
Why is analog design challenging? (cont.)
􀁺 Economic forces is pushing the integration of
analog and digital functions onto a single
substrate
􀁺 Many levels of abstraction are required