COMMON -MODE FEEDBACK ___a tutorial

kevinwjs

Why do we need to use Common-Mode Feedback Circuits ?
• In the past, circuits have mainly one input and one output and both
referred to ground.
• Low voltage power supply make single ended circuits very difficult
to perform optimally. An alternative to single-ended circuits is to
use fully differential circuits.
• To double the output swing a fully differential circuit are used.
• The output terminals of fully differential circuits are equal and
opposite polarity.
• Additional properties of fully differential circuits are: improved
output swing, linearity and common-mode rejection ratio.
• How are the differential outputs referred to ?
• How are the common-mode signals eliminated in a Fully differential
circuit ?
CMFB.pdf (870.82 KB , 下载次数: 267 )

2009-9-16 14:54 上传

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averyer

谢谢楼主分享~~~

sspa

谢谢分享

langtaosha

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shadowsun

好东西啦，谢谢了

shadowsun

好东西啦，谢谢了

sssh

总觉得以前有人发过

jesseyu

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zhaoxiaoshu

Thanks for sharing!!!!

totalsea

谢谢楼主的分享