Designers often misunderstand current feedback amplifiers, although they have been: g. x) A+ K% y V8 a
available for many years. This application note will answer some questions and give a 2 L8 S2 w. n6 C7 o% Z* M9 ~jumpstart to apprehensive designers. 3 L. |& _, J2 v # y0 f- O! c) c! P# k' U( p1 Introduction b' `, K& P% G: E C
2 Current Feedback Amplifiers—Use Them Right!3 h- {, g4 D/ p( [# X
3 Gain Circuits # Y7 a" @- H' v( f1 m7 P, h5 k
4 Filter Circuits ' K! {' t9 ^* e3 a
4.1 Single Pole Filters ' X& l& k5 D0 j8 B- P) W, O5 H4.2 Double Pole Filters 5 }& f) c8 o' u# c u# N$ t4.2.1 Sallen-Key Filters , q: A1 h# m% V
4.2.2 Twin T Filters 9 B, D* X' d' t$ T5 u
4.3 Bandpass Filter 5 H' L4 S2 Q: u) [ P2 Y; W- _& }5 Summary + s- F+ b* h7 f/ k9 JAppendix A Current Feedback Amplifier Stability Model 6 n9 Z4 Y- h9 w" S- h1 }( H. p
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發表於 2008-9-5 22:04:27
Designers often misunderstand current feedback amplifiers, although they have been: g. x) A+ K% y V8 a
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