模拟电路设计第1章.ppt

Design of Analog CMOS Integrated CircuitsBy Behzad Razavi2001Chapter 1Introduction to Analog DesignCopyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.2Why Analog?Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.3Digital CommunicationsCopyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.4Digital CommunicationsCopyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.5Disk Drive ElectronicsCopyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.6Wireless CommunicationsCopyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.7Optical ReceiversCopyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.8SensorsCopyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.9Why 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.Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.10Why is analog design challenging?(cont.)Analog circuits are much more sensitive to second-order device effectsHigh performance analog circuit design can rarely be automated-typically require hand-crafted design and layoutModeling and simulation of analog circuits is still problematic,requiring experience and intutionCopyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.11Economic forces require the development of analog circuits in mainstream digital processesEconomic forces pushing the integration of analog and digital functions onto a single substrateMany levels of abstraction are requiredWhy is analog design challenging?(cont.)Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.12Digital 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.)Copyright The McGraw-Hill Companies,Inc.Permission required for reproduction or display.Slides prepared by Travis N.Blalock,University of Virginia.13