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电路是一个很简单的分压电路加一个运放,如下:! U* @3 V1 p* t3 H7 g" z
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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:8 ~* A Q P" Y! t7 F& j
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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。)4 @, O2 l( c8 V- s8 A% w
1 {! x3 O# [4 K5 x) s**** 12/18/15 18:43:33 ***** PSpice 16.6.0 (October 2012) ***** ID# 0 ********
" |5 e+ p( ?. Q9 ?5 \% w, v** Profile: "SCHEMATIC1-01" [ E:\work\simulation circuit\simulation circuit of me\test3-pspicefiles\schematic1\01.sim ] . E* L \5 v# X! x' l, `5 r$ @
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**** CIRCUIT DESCRIPTION
% C" |" q6 _% Z1 Z+ v7 N& L* T
1 z* M9 G3 G" X8 B9 f( }******************************************************************************
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** Creating circuit file "01.cir" 1 y( ?7 _$ U, g9 h- x( o
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS
+ J4 Q2 i/ q6 _& r! T! C*Libraries:
5 O3 S/ c# S% h2 g- ~6 |, R* Profile Libraries :
( R$ _5 l6 D, Z, }1 e* ~* Local Libraries :2 R4 {: j+ A) s9 O8 Y8 z) z
.LIB "E:/work/PSPice/PSpice_Module/AD8045/ad8045.lib" * B8 y1 J! t/ d* l7 w( ?
.LIB "E:/work/PSPice/PSpice_Module/PBF951/pbr951.lib"
7 s7 U% k U. V" S& t$ }) T.LIB "E:/work/PSPice/PSpice_Module/bfg520_xr/bfg520xr.lib" & _8 t- W+ W0 k6 [
.LIB "e:/work/pspice/pspice_module/ada4610/ada4610.lib"
+ D' n* k4 G! m& w& d6 ?* `1 F$ k.LIB "e:/work/pspice/pspice_module/bf998wr/m4.lib" 5 f$ I/ W) Y% {0 I$ o( }+ ^, s- B
* From [PSPICE NETLIST] section of C:\Users\Administrator\AppData\Roaming\SPB_Data\cdssetup\OrCAD_PSpice/16.6.0/PSpice.ini file:
! N8 y' E* ^4 \* u8 E*Analysis directives: 5 j% h+ W, H& E/ t' K5 S" D- @
.AC DEC 10 10Hz 100000000Hz- T. S [2 l; V! _5 }6 D
.OPTIONS ADVCONV
" N% K, |0 g( T+ e C: [+ j.PROBE64 V(alias(*)) I(alias(*)) W(alias(*)) D(alias(*)) NOISE(alias(*)) - e6 u a" v H$ L' v! }5 Q# w9 d
$3 a7 u7 C; x7 G9 f- d
ERROR(ORPSIM-16058): Command ignored
0 T1 y8 k, J+ z, p0 d3 T.INC "..\SCHEMATIC1.net"
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1 Z+ U0 B i e! V/ h( H**** INCLUDING SCHEMATIC1.net ****, Z6 I$ y: |& z1 U
* source TEST3
* p, I4 k; y/ R% ]X_U3 N22677 N22309 VCC VEE N22589 ADA4610 0 P) `# |, n9 t/ @" t
C_C9 N22335 N22327 1000p TC=0,0 ; D0 d: W+ Y# z8 |& i# R8 N8 N
X_M4 VEE N22683 VEE VEE BF998WR/PLP. K. y& ]6 U! s
R_R15 N22317 N22589 10k TC=0,0
0 J3 S; M Y- ?3 O8 @1 z9 QR_R16 0 N22677 500k TC=0,0 " u6 P. P6 R7 y) ?1 b
R_R19 N22309 N22387 500k TC=0,0
3 Y+ K' e4 C2 \/ n* @8 c1 b1 gR_R20 0 N22309 500k TC=0,0 2 [8 q( Q9 O( o( j8 x( ?/ ^9 _* S
R_R18 VEE N22387 500k TC=0,0
9 w% V9 d. g3 b6 cR_R13 N22677 N22335 500k TC=0,0
0 o' F; v) m7 s& I( i) l6 WR_R14 N22589 N22327 10k TC=0,0 " p% r+ j7 Y6 F# r
X_M3 N22683 VCC N22327 N22327 BF998WR/PLP) \6 t- ]$ j0 N6 }/ h
R_R17 0 N22317 10k TC=0,0
+ w/ o4 G9 r( i; G" f5 `* x s# iV_V7 VCC 0 5Vdc
. U& |, u! k, q6 X, JV_V8 0 VEE 5Vdc4 k1 l% S" k% ~5 Q' y. U
C_C10 N22309 N22317 1000p TC=0,0 ! Y6 e3 M7 s! `7 q( R# N! o
C_C7 0 N35645 91p TC=0,0 9 P* _1 f8 }& r; x- K1 o4 G& k0 m
V_V2 VCC3 0 5Vdc1 Q0 j g9 `( \& Q$ K: t! x8 E
C_C1 N35593 N35663 1p TC=0,0
0 [* ?/ x1 d' I' NC_C5 N35645 N35531 1p TC=0,0
8 k/ S, c5 T1 P# @% W/ FC_C2 N35531 N35663 10p TC=0,0
; y( b9 [2 [5 F* M6 fC_C4 N66667 N35531 1p TC=0,0
6 W5 n1 u) \! F0 l: M2 q2 O' P! zV_V1 N35593 0 DC 0Vdc AC 10Vac , y3 w9 J4 S" j+ j/ i) O" U S% f
C_C6 0 N35531 1p TC=0,0 - I$ `# ^4 b5 A$ \' d% p
R_R2 N35593 N66667 680k TC=0,0
; I3 Z/ [1 }( W: x- s/ B8 TR_R6 0 N35531 200k TC=0,0 , i3 N6 c( m$ W# }; w# O
R_R1 N35663 N35593 91 TC=0,0 , n4 v+ o" o1 i0 n) s; _5 e
R_R5 N35531 N35645 10 TC=0,0 ' m( n* k1 X* |7 s) E& x
V_V3 0 VEE3 5Vdc
0 O; o, h) B. t" H! K6 OC_C14 N44706 N44772 1p TC=0,0 ; i* q. J1 [/ C
C_C13 N44754 N44702 1p TC=0,0
: N! B) u) i. n& ]: Z* m( \8 ZR_R24 N44702 N44754 10 TC=0,0
4 N2 ]/ a" F" }8 G6 R* V% Q+ sC_C11 N44702 N44772 10p TC=0,0 + s9 B+ K1 t, \! p' k" G4 {
R_R22 0 N44702 100k TC=0,0
( a( B" M) Y4 `5 pV_V10 N44706 0 DC 0Vdc AC 10Vac
" \7 h5 J( X, P# ?/ {9 `R_R23 N44772 N44706 91 TC=0,0
; I& w$ W T2 E8 jC_C15 0 N44702 1p TC=0,0
, }6 h% W" h0 N" a0 XC_C16 0 N44754 91p TC=0,0 " Z/ I+ e$ F- }. X: `2 s
C_C12 N44706 N44698 1p TC=0,0 5 l. _; y! H, t' Q9 Z _
R_R26 N44698 N44702 220k TC=0,0 : o' `, {7 w' Q( P
R_R25 N44706 N44698 680k TC=0,0
. o8 ]0 {6 y5 c1 n* g+ F0 o j" c1 lC_C17 N44698 N44702 1p TC=0,0 - [0 K8 N# ?+ f0 E7 t- b3 P: a9 b5 g
V_V9 N22335 0 DC 0Vdc AC 1Vac
- f; A& h5 U% K9 [6 n, c# F BX_U8 VCC N22683 N22387 PBR951
( a8 E' v. K0 F& y& E& h" d8 PR_R34 0 N64836 100k TC=0,0
' ?1 O! T/ g; }- k$ bV_V13 N65556 0 DC 0Vdc AC 10Vac
z6 f9 u0 p( P3 M' }1 j0 w" m7 c, q& DC_C25 0 N65078 1p TC=0,0 % [+ k. K+ ~# w- l
R_R39 N65606 N65556 90 TC=0,0 ) @: o5 ^* t4 o3 [$ B) b
R_R28 N64854 N65118 100k TC=0,0 7 R8 f/ [# S# N4 w2 v- D: i
X_M6 N65382 VCC4 N65084 N65084 BF998WR/PLP
6 W! u( S W" h4 H4 M5 Q+ ~0 SR_R37 N65556 N65078 900k TC=0,0
A! ]" V3 h# HR_R29 0 N64854 100k TC=0,0 3 I5 `+ _( Z) O
V_V11 VCC4 0 5Vdc3 o# H, ?9 i2 i. T
V_V12 0 VEE4 5Vdc
6 d! O. b3 s9 ~8 Z- g$ H" OC_C22 N65556 N65078 1p TC=0,0 6 @# x0 x+ X8 o' H' v. e
C_C21 N65078 N65606 10p TC=0,0 5 V; v4 I. A% h) a
R_R33 N64836 N65078 100k TC=0,0
' h- V. \) O9 l8 W4 n' N7 CR_R30 N64844 N65304 10k TC=0,0
7 T4 ]% `5 w2 d: \1 }C_C23 N65594 N65078 1p TC=0,0
; l% S, B4 |9 {( N$ EX_U10 N64836 N64854 VCC4 VEE4 N65304 ADA4610
: {* } c8 V1 s# }! J9 }: p. o; OR_R31 0 N64844 10k TC=0,0 % q0 ~8 S8 A) s# f% f9 ~
X_U11 VCC4 N65382 N65118 PBR951
3 w: o7 e6 |- r/ p( \7 d$ T. PC_C19 N64854 N64844 2p TC=0,0 8 O& u" Y% ?6 i- [; |5 q4 } d
R_R40 N65078 N65594 10 TC=0,0
) h4 T$ k- \" Z* F l' ?C_C26 0 N65594 91p TC=0,0 & s! Q2 T/ r- i Z+ K+ o8 D! Q4 O
C_C20 N65078 N65084 2p TC=0,0 . z2 d- p) h z* d# j
X_M5 VEE4 N65382 VEE4 VEE4 BF998WR/PLP/ L0 ~+ b( \0 A3 ^& ]1 e* K
R_R32 N65304 N65084 10k TC=0,0 ; r* k T* f& ]. ^0 b! I* r
R_R38 0 N65078 200k TC=0,0 ( \; \3 a% E9 }( l6 y- S
R_R35 N64854 N64844 10000k TC=0,0
- ~6 i4 c3 o9 w- \R_R36 VEE4 N65118 1k TC=0,0
5 [9 B1 v4 |, ~# [9 j# W6 qC_C24 N65556 N65606 1p TC=0,0 . b9 `3 N' t5 T0 |9 ?* ^, a
R_R41 0 N35593 100 TC=0,0 ( _) B, e8 O4 G+ R$ u5 I- c9 M
R_R42 0 N35593 100 TC=0,0
1 U& d9 T& ?' K0 J7 qR_R43 N66667 N35531 220k TC=0,0
( g8 W: [! @! w3 LC_C27 N35593 N66667 1p TC=0,0 ' r4 F: U% f8 ?, L+ l
R_R44 N68082 VCC3 1.1M TC=0,0
. {; m( {$ C: W* M jR_R45 N35531 N68082 1.1M TC=0,0
% _! p0 U/ z3 z1 i( `X_U12 N35531 N71678 N71678 VCC3 VEE3 AD8045* Y9 W }' D0 `; y6 D
.PARAM rx=500k& ]( R. x9 y3 b. J, j
**** RESUMING 01.cir ***** d) y0 \1 w( p* r- A
.END
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' G0 [- \- M3 m) D- V6 G8 \**** EXPANSION OF SUBCIRCUIT X_U12 ****
! f: r# b* J& S# EX_U12.RCM15 N35531 X_U12.105 10MEG
# n i+ U1 V+ I) mX_U12.RCM25 N71678 X_U12.105 10MEG
$ c4 Y% b3 G' U* j' f% mX_U12.EOS N35531 X_U12.92 POLY 1 X_U12.300 X_U12.100 0 1
U: ~/ M% z+ }! L1 kX_U12.Q1 X_U12.5 X_U12.9 X_U12.7 X_U12.NPN6 d0 |0 b7 H2 |. M: A4 F
X_U12.Q2 X_U12.6 N71678 X_U12.8 X_U12.NPN
6 \7 `, f0 c; m0 K& M4 sX_U12.RC1 VCC3 X_U12.5 537.15 T_ABS
_/ M4 F$ \- q9 u: K! x; I------------------------------$6 P& {) J2 A& p+ y* e3 e* ?
ERROR(ORPSIM-16145): unknown parameter- p/ J6 N4 J7 O9 c
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