Designers often misunderstand current feedback amplifiers, although they have been" |+ v& V; e5 ?( a9 i
available for many years. This application note will answer some questions and give a . A+ B0 `9 b5 o( [1 R Ujumpstart to apprehensive designers.. D) A' L% n: ^
4 ?8 G1 N' x' X+ x7 }. L1 Introduction 3 O5 W% g! C3 k2 n
2 Current Feedback Amplifiers—Use Them Right! 3 b( b+ L( V( n4 m7 S# ^2 ^; f3 Gain Circuits " F: C9 B% g9 T% b! b% L5 O- K) R
4 Filter Circuits 7 w; X4 r t' S& ]% d+ w! m
4.1 Single Pole Filters , f8 c0 l8 c2 ^7 D4.2 Double Pole Filters $ d$ k. A. v& P- B# g6 V
4.2.1 Sallen-Key Filters 7 z3 ~7 `% `, z6 s4.2.2 Twin T Filters ) U6 ^( z2 Q5 L9 c, M
4.3 Bandpass Filter # v( C6 q- \5 L- L/ {
5 Summary ' V7 ?9 J4 U0 F& v) \Appendix A Current Feedback Amplifier Stability Model n9 l1 t; V" x
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Designers often misunderstand current feedback amplifiers, although they have been" |+ v& V; e5 ?( a9 i
n9 l1 t; V" x
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