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Contents; l- ]# h0 y* T4 X9 w
1 Introduction .................................................................................................................................. 3
# g8 f/ o% P& a. D# ]+ \1.1 Split Supply vs Single Supply.................................................................................................... 3
( {& j! [4 U' m% n1.2 Virtual Ground.......................................................................................................................... 4
K0 `8 i' f" w+ S+ ]! E1.3 AC-Coupling ............................................................................................................................. 4
0 w% [* n: _$ e1.4 Combining Op-Amp Stages ...................................................................................................... 5
Y1 `' k- D/ ^% w/ y, V1.5 Selecting Resistor and Capacitor Values .................................................................................. 5 t. ^) H! g/ n1 x
2 Basic Circuits ............................................................................................................................... 5
6 H, v0 L% @3 c4 G# i& e& i2.1 Gain......................................................................................................................................... 5
4 ]: ]5 L# ?' F3 g! R' I2.2 Attenuation ............................................................................................................................... 64 P# A g9 ^3 y* v9 k
2.3 Summing ................................................................................................................................. 9
5 {! Q- w; m {2.4 Difference Amplifier .................................................................................................................. 9) W1 J# [2 V( Z/ H
2.5 Simulated Inductor.................................................................................................................... 9% @9 ?! D7 ~6 Z0 w( \
2.6 Instrumentation Amplifiers ...................................................................................................... 10
, U+ m& J2 G8 _7 ^4 m3 Filter Circuits ............................................................................................................................... 120 S1 u5 H2 ] R9 g- ~
3.1 Single Pole Circuits................................................................................................................. 13+ v0 w: g* U0 `
3.1.1 Low Pass Filter Circuits .............................................................................................................13
/ O( f$ [: y- H3.1.2 High Pass Filter Circuits.............................................................................................................13
4 w m w& w* b( i3.1.3 All-Pass Filter ............................................................................................................................14
8 w9 m8 `0 _6 x- \3.2 Double-Pole Circuits ............................................................................................................... 15' b8 ^3 O. H$ i1 i, o0 r
3.2.1 Sallen-Key................................................................................................................................15
* m: A8 T' p" K7 I2 g3.2.2 Multiple Feedback (MFB)...........................................................................................................16
9 i$ {3 }3 u' a, h* I; ^ Q M5 v+ o' H3.2.3 Twin T ......................................................................................................................................17& t5 e# H3 g- I v; B
3.2.4 Fliege .......................................................................................................................................20
+ E d: j0 [4 s( ^3.2.5 Akerberg-Mossberg Filter ..........................................................................................................22/ C- ]$ E9 x6 r5 C5 ~" Z
3.2.6 BiQuad .....................................................................................................................................24 S$ K: T3 q5 c ?: O( M
3.2.7 State Variable...........................................................................................................................257 L [. e: Q" W* f& _9 U
4 References.................................................................................................................................. 25
2 x& | |& s7 ?+ ^3 }Appendix A – Standard Resistor and Capacitor Values ................................................................. 26
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pdf 附件如後: 27頁
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[ 本帖最後由 sjhor 於 2007-5-11 10:12 PM 編輯 ] |
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