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电路是一个很简单的分压电路加一个运放,如下:
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' O4 X/ r% D8 x- k- ^$ M& a% n1 z运放选用的是ad8045,从网上下载的spice model文件,然后点击仿真,想要得到输出信号的频响曲线,因此仿真用的是交流扫频,没想到仿真结果如下:9 O, J2 \. L* {, X0 D/ Z
x& e# Z0 y3 i6 ?. Z3 }; f( F6 B% H(在下初学cadence,这个仿真问题确实弄了好几天没有找到解决方法,求大神帮忙解答,感激涕零。)
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* g% S6 X, R. S! U2 e( y' h**** 12/18/15 18:43:33 ***** PSpice 16.6.0 (October 2012) ***** ID# 0 ********
' m5 }) v+ ?# {$ F) [& K0 r** Profile: "SCHEMATIC1-01" [ E:\work\simulation circuit\simulation circuit of me\test3-pspicefiles\schematic1\01.sim ] 6 Q6 S$ x5 b) u" ]) m, v! ]
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**** CIRCUIT DESCRIPTION7 [ s+ h( r2 L& e) m* F. O
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******************************************************************************
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2 C% N m! P9 U9 X; v ^7 J** Creating circuit file "01.cir" + n/ _3 h( K( J/ R# w
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS: _4 J: \+ T, R) ]+ N, I7 K }+ Q
*Libraries:
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* Local Libraries :
8 ?' n, ~* y$ J1 e/ J8 m+ a7 X* p.LIB "E:/work/PSPice/PSpice_Module/AD8045/ad8045.lib"
$ l3 e$ Z5 y5 z2 y- ~; y.LIB "E:/work/PSPice/PSpice_Module/PBF951/pbr951.lib" % i/ p5 ?! W2 ~. k3 ^
.LIB "E:/work/PSPice/PSpice_Module/bfg520_xr/bfg520xr.lib"
: A8 M0 [/ V: f- ~" Q.LIB "e:/work/pspice/pspice_module/ada4610/ada4610.lib" & ^9 h( r' z. L
.LIB "e:/work/pspice/pspice_module/bf998wr/m4.lib"
5 M; A- _7 z0 o- U' I" V D0 o* From [PSPICE NETLIST] section of C:\Users\Administrator\AppData\Roaming\SPB_Data\cdssetup\OrCAD_PSpice/16.6.0/PSpice.ini file:
1 [7 k }$ F& t0 }$ j*Analysis directives: # d5 T9 X8 t6 K5 Y9 j3 w3 Q1 Q3 _
.AC DEC 10 10Hz 100000000Hz. w* B8 D+ z$ D7 i) n
.OPTIONS ADVCONV' P: N9 a; Q8 t: A
.PROBE64 V(alias(*)) I(alias(*)) W(alias(*)) D(alias(*)) NOISE(alias(*)) ) K" W, ?: I" a, m9 a& w3 B
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ERROR(ORPSIM-16058): Command ignored* g% y P% Q- u, Y7 `8 {
.INC "..\SCHEMATIC1.net" 5 V1 v9 t% v5 Z& d) U% e
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**** INCLUDING SCHEMATIC1.net ****
q5 N4 Z4 b$ l# h! l1 \" l- W* source TEST3
' @5 D( F( _% j% ]/ lX_U3 N22677 N22309 VCC VEE N22589 ADA4610
4 T2 q& q6 Z/ O- }% W1 GC_C9 N22335 N22327 1000p TC=0,0 # h+ `* I }5 ~% G9 Y
X_M4 VEE N22683 VEE VEE BF998WR/PLP# P `! }/ `8 \
R_R15 N22317 N22589 10k TC=0,0
% {1 p1 t8 c5 ~R_R16 0 N22677 500k TC=0,0
8 ~- r. I% Y+ q$ o* y3 K9 F' [R_R19 N22309 N22387 500k TC=0,0
( t5 C9 E$ z: q8 c" e) o0 XR_R20 0 N22309 500k TC=0,0
% j- e5 ?8 p+ D/ m) }R_R18 VEE N22387 500k TC=0,0 3 F6 W. w- R( C3 V% L
R_R13 N22677 N22335 500k TC=0,0
2 J; w( M2 L$ B$ @R_R14 N22589 N22327 10k TC=0,0
! U9 Z0 x @% m! O0 S f5 v: gX_M3 N22683 VCC N22327 N22327 BF998WR/PLP+ q) D; V! M3 y! \$ W
R_R17 0 N22317 10k TC=0,0
5 e1 x2 K( N2 z7 `! n2 N5 {V_V7 VCC 0 5Vdc
/ M) V7 r1 c# p1 w4 g; U( E4 pV_V8 0 VEE 5Vdc( s5 _7 }+ X: W+ i; [9 ?! J8 G
C_C10 N22309 N22317 1000p TC=0,0 5 D9 P* Q0 m1 M$ B+ y4 ~* d
C_C7 0 N35645 91p TC=0,0 6 l4 ~5 `6 n5 T. r' K8 _( ^* `! a/ u# }
V_V2 VCC3 0 5Vdc) _4 B. V( v" u* {0 p
C_C1 N35593 N35663 1p TC=0,0
( |1 J2 v2 F# }- G# kC_C5 N35645 N35531 1p TC=0,0 ! x! f4 q) m p! g T
C_C2 N35531 N35663 10p TC=0,0 ( |1 M' J2 `$ H" s9 e" _
C_C4 N66667 N35531 1p TC=0,0
0 ~" v( `/ T" f$ a" X8 Q; tV_V1 N35593 0 DC 0Vdc AC 10Vac
! r4 W4 p0 p% G9 H1 ]* mC_C6 0 N35531 1p TC=0,0
& n% a1 e( a7 qR_R2 N35593 N66667 680k TC=0,0 , C/ E" M' d$ V* `3 d& @
R_R6 0 N35531 200k TC=0,0
% R. c9 ~6 F0 i; ER_R1 N35663 N35593 91 TC=0,0 8 K- L. O" o6 v, x5 S8 K. K2 ]
R_R5 N35531 N35645 10 TC=0,0
6 {$ G" U# g6 [0 W3 R- [, ]V_V3 0 VEE3 5Vdc
0 `2 H$ N+ N) c+ B9 @C_C14 N44706 N44772 1p TC=0,0
$ D8 e7 C% n6 b8 sC_C13 N44754 N44702 1p TC=0,0 8 U% W" V% \* |4 D7 v0 b" N
R_R24 N44702 N44754 10 TC=0,0
9 ]+ Z, X1 ]4 o; e/ U: R: ]( bC_C11 N44702 N44772 10p TC=0,0 : d7 G$ L& m' O3 d9 Q
R_R22 0 N44702 100k TC=0,0
/ c: v5 B9 }1 f/ yV_V10 N44706 0 DC 0Vdc AC 10Vac ) a5 H4 |1 D4 k- d, \7 x
R_R23 N44772 N44706 91 TC=0,0 ' A4 t) o: [1 Q" V1 h
C_C15 0 N44702 1p TC=0,0 ( @4 [# u. \6 |. v7 j
C_C16 0 N44754 91p TC=0,0
/ \ [+ I9 m( }2 r" EC_C12 N44706 N44698 1p TC=0,0 1 [ f% x& A- N% b) e; Z% X
R_R26 N44698 N44702 220k TC=0,0
4 s; j+ h5 F$ Z9 D! T" r2 U7 F3 QR_R25 N44706 N44698 680k TC=0,0
( O) t `" y" O' M$ A. ]) p% \* nC_C17 N44698 N44702 1p TC=0,0 % Y! l" [: G: u% Z. X, l* z/ Z% B
V_V9 N22335 0 DC 0Vdc AC 1Vac , i3 f+ ~4 F9 a9 w) J9 _
X_U8 VCC N22683 N22387 PBR951
) X. P- `% _' u" l0 J8 ^R_R34 0 N64836 100k TC=0,0
7 r% G, A3 `% `- rV_V13 N65556 0 DC 0Vdc AC 10Vac 9 j3 d" C& W0 ]+ t, S) ]
C_C25 0 N65078 1p TC=0,0
5 _# o3 H5 V& H" q, `R_R39 N65606 N65556 90 TC=0,0 / U! g- Q1 ]3 `3 g/ j" I9 d$ o, K
R_R28 N64854 N65118 100k TC=0,0 4 }0 k9 h0 s& m& ^
X_M6 N65382 VCC4 N65084 N65084 BF998WR/PLP
# B! J. j$ I, _. D8 n8 i# O5 FR_R37 N65556 N65078 900k TC=0,0
# p% w( \; Y3 A% y8 \1 I" wR_R29 0 N64854 100k TC=0,0
( c4 ~- g! |5 `( d4 H7 [5 CV_V11 VCC4 0 5Vdc2 }2 x# Y+ V" t4 P( ^
V_V12 0 VEE4 5Vdc
- a" e. e P* W. ]C_C22 N65556 N65078 1p TC=0,0
! Y# i c- ]- V7 B& ]: dC_C21 N65078 N65606 10p TC=0,0
2 g9 Z- j+ N5 |9 n7 S6 t% MR_R33 N64836 N65078 100k TC=0,0
^+ x/ Z2 G, [6 ?$ {1 Z9 ZR_R30 N64844 N65304 10k TC=0,0 9 X2 K6 T- A- ^8 F
C_C23 N65594 N65078 1p TC=0,0 7 t' d D H+ e7 x0 R; r
X_U10 N64836 N64854 VCC4 VEE4 N65304 ADA4610
. I3 e7 Y3 H; Q2 Q* ]R_R31 0 N64844 10k TC=0,0
- Z3 I7 z" }5 }X_U11 VCC4 N65382 N65118 PBR951
* I( u' b% O8 ]! `# [C_C19 N64854 N64844 2p TC=0,0 * J; Y# w& H) B. w1 w( S& U/ Q
R_R40 N65078 N65594 10 TC=0,0
2 |# v8 g) Y `$ YC_C26 0 N65594 91p TC=0,0 4 ^1 s5 O8 z5 J5 X) w7 N8 k
C_C20 N65078 N65084 2p TC=0,0 , X' f6 z3 o( @+ y3 H
X_M5 VEE4 N65382 VEE4 VEE4 BF998WR/PLP
; \7 n$ b8 {0 E; b! _3 B! HR_R32 N65304 N65084 10k TC=0,0
/ G9 k& I- g/ j5 n5 F6 M; bR_R38 0 N65078 200k TC=0,0
7 Q; a" V' i6 D/ r8 Q( i% AR_R35 N64854 N64844 10000k TC=0,0
# O& ^% ?4 e! xR_R36 VEE4 N65118 1k TC=0,0
7 [8 e1 B# X4 f9 m7 U$ `. YC_C24 N65556 N65606 1p TC=0,0 ; j* F5 D! [5 X ~: m
R_R41 0 N35593 100 TC=0,0
1 ?9 `0 M1 v U) [4 W% lR_R42 0 N35593 100 TC=0,0 1 X. V! ]* V0 r- b, u# Q+ _
R_R43 N66667 N35531 220k TC=0,0 " ~; y7 q5 H: b% X! l7 n
C_C27 N35593 N66667 1p TC=0,0
' }9 v" I/ j! A& s+ ~4 V* ? I: |R_R44 N68082 VCC3 1.1M TC=0,0
$ s2 L9 {- P; jR_R45 N35531 N68082 1.1M TC=0,0 % Q' ^ ~$ R6 ^( _' M$ a$ i
X_U12 N35531 N71678 N71678 VCC3 VEE3 AD8045
- r" n1 D5 K& _% o0 F) A7 G.PARAM rx=500k5 ]' n: Z9 L4 G- N/ k
**** RESUMING 01.cir ****2 B k3 `0 x# J- ~. ^% d
.END
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**** EXPANSION OF SUBCIRCUIT X_U12 ****# Z, ?5 Q& ^ y
X_U12.RCM15 N35531 X_U12.105 10MEG
O3 w) ]5 J* h8 l1 |- j" kX_U12.RCM25 N71678 X_U12.105 10MEG- \5 c7 M, U9 Y7 p
X_U12.EOS N35531 X_U12.92 POLY 1 X_U12.300 X_U12.100 0 14 d8 ~5 L/ n2 `2 [
X_U12.Q1 X_U12.5 X_U12.9 X_U12.7 X_U12.NPN
1 h6 U) S; g+ S& u, C: C2 t( b- wX_U12.Q2 X_U12.6 N71678 X_U12.8 X_U12.NPN" g# I$ d- t7 @# r
X_U12.RC1 VCC3 X_U12.5 537.15 T_ABS3 L+ k6 d# f3 ^; ]; y0 ?
------------------------------$) P% ^7 d4 {+ D' V3 D% B! C) ]( y H
ERROR(ORPSIM-16145): unknown parameter/ }+ S/ j2 C0 R0 l; h( q W
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