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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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! N8 ?8 _$ H3 k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:2 o8 }! G! L$ I0 F4 X3 u
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(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。)' L/ W0 I; ^# G
5 [8 H2 _/ b& B# @ I4 U**** 12/18/15 18:43:33 ***** PSpice 16.6.0 (October 2012) ***** ID# 0 ********
( J5 o. H5 W$ f9 X* t+ g( ~** Profile: "SCHEMATIC1-01" [ E:\work\simulation circuit\simulation circuit of me\test3-pspicefiles\schematic1\01.sim ]
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**** CIRCUIT DESCRIPTION
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******************************************************************************( }( G/ u$ R+ V/ A% G
M! r+ a4 X+ a
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** Creating circuit file "01.cir"
1 w$ J) O# _) |3 ~3 X** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS
+ Z" G5 v7 ~* V*Libraries:
1 S3 ?; S7 |) O, |* Profile Libraries :- l- ?) P. {/ V/ x
* Local Libraries :$ i7 Q- a/ w* i
.LIB "E:/work/PSPice/PSpice_Module/AD8045/ad8045.lib" ) L( y; g/ V- m9 O
.LIB "E:/work/PSPice/PSpice_Module/PBF951/pbr951.lib" ; s1 V- h0 v) S) ?: L5 _3 M
.LIB "E:/work/PSPice/PSpice_Module/bfg520_xr/bfg520xr.lib"
' ~9 h# j1 V* I) P. y# T8 V.LIB "e:/work/pspice/pspice_module/ada4610/ada4610.lib"
% r0 t$ H; B% l# C6 f.LIB "e:/work/pspice/pspice_module/bf998wr/m4.lib"
$ J) l# p0 O/ k! Z% g* From [PSPICE NETLIST] section of C:\Users\Administrator\AppData\Roaming\SPB_Data\cdssetup\OrCAD_PSpice/16.6.0/PSpice.ini file:* b" R/ Q) g" U$ G1 {; O
*Analysis directives: % j# F7 s. M- l7 K$ T
.AC DEC 10 10Hz 100000000Hz
$ S+ j5 t& v( f2 {& ^ X1 f.OPTIONS ADVCONV
! |3 X9 ^* T! |# U6 c6 D1 `# q.PROBE64 V(alias(*)) I(alias(*)) W(alias(*)) D(alias(*)) NOISE(alias(*)) 3 T q7 P3 d+ \- k6 V1 f
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ERROR(ORPSIM-16058): Command ignored
- h( O, E7 J( B7 L/ }3 c2 R.INC "..\SCHEMATIC1.net" + Z3 @4 G X( R
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**** INCLUDING SCHEMATIC1.net ****
/ r1 M; k- b9 J" z* source TEST3
5 `3 i q3 s8 R+ nX_U3 N22677 N22309 VCC VEE N22589 ADA4610 & O$ S5 _% s) |1 z& u
C_C9 N22335 N22327 1000p TC=0,0 ! ^" M/ v2 e5 @& s8 w
X_M4 VEE N22683 VEE VEE BF998WR/PLP$ q0 ?1 E' H8 G9 i Q0 h; R& O. G
R_R15 N22317 N22589 10k TC=0,0
9 k' @* i; V9 e p2 pR_R16 0 N22677 500k TC=0,0
4 S$ x: Z, @1 n2 {% b A6 ZR_R19 N22309 N22387 500k TC=0,0
' u4 x& e* y L; c7 Y; s( qR_R20 0 N22309 500k TC=0,0
, N( X9 `2 v% K, s- LR_R18 VEE N22387 500k TC=0,0 - B/ R* W- v5 O- O8 _6 `+ c6 f
R_R13 N22677 N22335 500k TC=0,0 u c% x' P" D7 G* ^+ q: e- H
R_R14 N22589 N22327 10k TC=0,0
* T: F+ X% `3 V) p, wX_M3 N22683 VCC N22327 N22327 BF998WR/PLP
0 c" h9 K/ F9 ]" q' wR_R17 0 N22317 10k TC=0,0 ; ?* ^) o) i, e' N% L, D) w
V_V7 VCC 0 5Vdc
! P& j4 w; e. y2 A3 g( D& uV_V8 0 VEE 5Vdc( b! f' Y) F/ O
C_C10 N22309 N22317 1000p TC=0,0
6 g0 n4 _* R8 R, K0 M: b. g% lC_C7 0 N35645 91p TC=0,0 % \5 U% H9 q! l2 Q! c- k
V_V2 VCC3 0 5Vdc8 |. f" J6 s3 r- \; h
C_C1 N35593 N35663 1p TC=0,0 0 ]% u9 E/ V! Y$ I- l' p+ a
C_C5 N35645 N35531 1p TC=0,0
0 J/ a& X, s3 V' {7 iC_C2 N35531 N35663 10p TC=0,0
8 g3 P) O. M% o4 H, D8 n6 CC_C4 N66667 N35531 1p TC=0,0
* ~6 t3 d9 [; b# vV_V1 N35593 0 DC 0Vdc AC 10Vac ' \4 o9 p1 Q6 x; ^* q* h# k# C
C_C6 0 N35531 1p TC=0,0
& V: i- `8 y0 C# d9 ]4 [R_R2 N35593 N66667 680k TC=0,0 M/ l6 \6 X e7 A
R_R6 0 N35531 200k TC=0,0
# f$ o% M' i x" u$ mR_R1 N35663 N35593 91 TC=0,0 : n6 [# c/ ?; T
R_R5 N35531 N35645 10 TC=0,0
' ~6 S8 w+ U4 z! VV_V3 0 VEE3 5Vdc
# Y+ d, L5 U2 o5 O9 U# iC_C14 N44706 N44772 1p TC=0,0
0 Z* w3 [ h: w% v8 G0 oC_C13 N44754 N44702 1p TC=0,0
' S; e7 U9 A5 {+ \ a% yR_R24 N44702 N44754 10 TC=0,0 ) _0 `) _3 c# t5 j! V
C_C11 N44702 N44772 10p TC=0,0
7 z F0 R6 p; @' pR_R22 0 N44702 100k TC=0,0 ' L' v; e/ A2 K* e
V_V10 N44706 0 DC 0Vdc AC 10Vac , U. K( D) O) R5 a' V
R_R23 N44772 N44706 91 TC=0,0 ; t ^ t1 }; ]! k% C- P+ V! D
C_C15 0 N44702 1p TC=0,0
& O: n# J# |4 k: O7 ^; F% Z% MC_C16 0 N44754 91p TC=0,0 . I, e' T: m1 A, X5 b
C_C12 N44706 N44698 1p TC=0,0
, i! D( X, c' f3 IR_R26 N44698 N44702 220k TC=0,0 ) z, V9 w6 F8 l0 E
R_R25 N44706 N44698 680k TC=0,0
8 k W& t5 w3 ZC_C17 N44698 N44702 1p TC=0,0
$ Q/ Z' ^% P# b1 z! z% S2 i1 uV_V9 N22335 0 DC 0Vdc AC 1Vac
( w, `' V }8 L3 w. T+ HX_U8 VCC N22683 N22387 PBR951
" I# x- g) X! ]4 }5 QR_R34 0 N64836 100k TC=0,0
$ d6 y' ]# C) \6 o& ^7 k+ CV_V13 N65556 0 DC 0Vdc AC 10Vac , U; e2 i0 _: v( i* H, I
C_C25 0 N65078 1p TC=0,0 ; a3 I, T: f7 c7 r' t
R_R39 N65606 N65556 90 TC=0,0
1 a7 B0 d9 I8 _' d" OR_R28 N64854 N65118 100k TC=0,0
9 O5 Q: v% y$ ?9 ?X_M6 N65382 VCC4 N65084 N65084 BF998WR/PLP
% O- O9 m! V+ b) i* @R_R37 N65556 N65078 900k TC=0,0 : h5 I( P) |) b% K. U
R_R29 0 N64854 100k TC=0,0
; o* C3 J; j. z eV_V11 VCC4 0 5Vdc
( V. k* c2 v& f! h9 h7 n9 JV_V12 0 VEE4 5Vdc
' x' {: `: _1 R I- @1 A* zC_C22 N65556 N65078 1p TC=0,0
' N3 j" W1 @5 XC_C21 N65078 N65606 10p TC=0,0
X0 ~2 ^2 W& _2 x- ]R_R33 N64836 N65078 100k TC=0,0 ! X$ j+ M5 t" `% r/ c3 ?5 q
R_R30 N64844 N65304 10k TC=0,0
) D$ |4 w; p. FC_C23 N65594 N65078 1p TC=0,0 ; R) {; t q$ U5 c* n
X_U10 N64836 N64854 VCC4 VEE4 N65304 ADA4610 9 B) T2 g- G$ G* x3 Z K( a" X& ]6 u
R_R31 0 N64844 10k TC=0,0 ! ]4 E: u- T$ q. ]; R5 k- p2 k
X_U11 VCC4 N65382 N65118 PBR951
* V: ^8 J& K7 w( B, N# V3 x/ F& sC_C19 N64854 N64844 2p TC=0,0 & F7 \$ i, T4 g" T2 H6 ]
R_R40 N65078 N65594 10 TC=0,0 % h% H0 z- [# p3 e: J' g
C_C26 0 N65594 91p TC=0,0 6 C5 h. Q& `+ M# D
C_C20 N65078 N65084 2p TC=0,0
( F$ [' ?( x* L" AX_M5 VEE4 N65382 VEE4 VEE4 BF998WR/PLP
& W! ~- B- M0 mR_R32 N65304 N65084 10k TC=0,0
- N/ ~' [; l+ _: d" QR_R38 0 N65078 200k TC=0,0
% @! w5 k4 y6 o; c) o# XR_R35 N64854 N64844 10000k TC=0,0
# ^$ V* \& F" |; sR_R36 VEE4 N65118 1k TC=0,0
: Y3 \% C4 u$ }9 b, OC_C24 N65556 N65606 1p TC=0,0
" z5 I$ `) ]4 y4 S* v. kR_R41 0 N35593 100 TC=0,0
/ G3 ~) p! |8 O& y3 [R_R42 0 N35593 100 TC=0,0
- Q3 F& f/ A1 ~6 n1 `6 v, PR_R43 N66667 N35531 220k TC=0,0
* |9 C* ~4 C O3 uC_C27 N35593 N66667 1p TC=0,0 + m3 z1 h( u' Q. W3 s
R_R44 N68082 VCC3 1.1M TC=0,0 + N% ]" l; m2 i1 d
R_R45 N35531 N68082 1.1M TC=0,0
% Y( n, J1 D* Z; a, K% V/ `X_U12 N35531 N71678 N71678 VCC3 VEE3 AD80450 P$ M3 d7 N% P6 O
.PARAM rx=500k
! Z; x" v# x: ~**** RESUMING 01.cir ****. {( ?- {7 }5 z5 f5 L
.END& J4 j3 f7 M1 a1 k
& ^9 h& Q- Z6 P2 C$ `**** EXPANSION OF SUBCIRCUIT X_U12 ****
3 ~6 u$ B: i$ x9 w: I/ dX_U12.RCM15 N35531 X_U12.105 10MEG1 ?0 g; f' x+ M+ G+ @' l+ J
X_U12.RCM25 N71678 X_U12.105 10MEG
" \% Y$ l K. x3 eX_U12.EOS N35531 X_U12.92 POLY 1 X_U12.300 X_U12.100 0 1! m" o+ t9 b. \
X_U12.Q1 X_U12.5 X_U12.9 X_U12.7 X_U12.NPN$ g; c" ~3 K( E/ R" X6 ]) I
X_U12.Q2 X_U12.6 N71678 X_U12.8 X_U12.NPN
8 B) i1 o) ?% n7 R7 ~/ Q8 d6 @X_U12.RC1 VCC3 X_U12.5 537.15 T_ABS! c& f) U6 i ~7 L
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ERROR(ORPSIM-16145): unknown parameter
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