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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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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 c3 h5 m& k l" Q
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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。), A( k- ~" S3 n: j
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**** 12/18/15 18:43:33 ***** PSpice 16.6.0 (October 2012) ***** ID# 0 ********8 D8 r d0 z2 o- X
** Profile: "SCHEMATIC1-01" [ E:\work\simulation circuit\simulation circuit of me\test3-pspicefiles\schematic1\01.sim ]
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/ e& f7 Q6 C2 T' m* h, k. F**** CIRCUIT DESCRIPTION
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******************************************************************************9 D H, ^% X; N5 d
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** Creating circuit file "01.cir" " x, Z% j& z. a: I: F0 p! E
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS R f: b6 K `, {5 l( I5 h/ c! e
*Libraries:
0 n* C4 A) g3 R0 P1 f* Profile Libraries :1 l5 B% R5 l9 a3 t9 ?4 v6 z5 M
* Local Libraries :9 g1 v ^8 t+ B1 I$ \9 |) ]% @
.LIB "E:/work/PSPice/PSpice_Module/AD8045/ad8045.lib"
! k3 q! D7 @$ K.LIB "E:/work/PSPice/PSpice_Module/PBF951/pbr951.lib"
$ D# }5 O7 t' N.LIB "E:/work/PSPice/PSpice_Module/bfg520_xr/bfg520xr.lib"
. N% w# t# w7 M/ L& }" P.LIB "e:/work/pspice/pspice_module/ada4610/ada4610.lib"
0 G- g3 ]! P, r4 F* V, z/ }.LIB "e:/work/pspice/pspice_module/bf998wr/m4.lib" 1 o( y) J6 o; d) l! I6 ?0 t8 v
* From [PSPICE NETLIST] section of C:\Users\Administrator\AppData\Roaming\SPB_Data\cdssetup\OrCAD_PSpice/16.6.0/PSpice.ini file:6 v) `% L9 G0 c4 I1 U* J& m
*Analysis directives:
9 a1 [1 X9 `7 c# {7 N4 F.AC DEC 10 10Hz 100000000Hz$ H; L7 o R( U6 j j
.OPTIONS ADVCONV) M" @- w' E. A- h0 v
.PROBE64 V(alias(*)) I(alias(*)) W(alias(*)) D(alias(*)) NOISE(alias(*))
* I' T/ n. G4 S4 d6 ]$
3 F5 t; b7 o- @" dERROR(ORPSIM-16058): Command ignored/ o, r3 ~" P( J6 m
.INC "..\SCHEMATIC1.net" $ F3 Q/ u* I5 J$ N, {5 i z) O
. j- ]2 k7 M# @3 f% @1 `**** INCLUDING SCHEMATIC1.net ****8 r9 I8 l" m/ ^5 M
* source TEST3
% U# q7 I" _# f `X_U3 N22677 N22309 VCC VEE N22589 ADA4610
# S$ n7 M8 {' y: S o: R8 x9 J; RC_C9 N22335 N22327 1000p TC=0,0 1 y( d# n$ a2 x! Z0 \5 f) Q' _1 l
X_M4 VEE N22683 VEE VEE BF998WR/PLP7 U( M8 \7 t- I' F' R( G
R_R15 N22317 N22589 10k TC=0,0 * W0 |" M4 q- c7 s( h3 [7 f
R_R16 0 N22677 500k TC=0,0
: C0 q& h& k5 {7 N9 jR_R19 N22309 N22387 500k TC=0,0 / w B( i7 H, [
R_R20 0 N22309 500k TC=0,0 ; o3 J0 q/ Q/ ?' u1 d8 y$ s9 X+ C' C
R_R18 VEE N22387 500k TC=0,0
' a) G4 |" a C7 j6 b2 g. ER_R13 N22677 N22335 500k TC=0,0
- r+ Z5 T' v7 AR_R14 N22589 N22327 10k TC=0,0 4 i& r# S4 U+ O. g& \
X_M3 N22683 VCC N22327 N22327 BF998WR/PLP
4 W/ v3 ]- l u; H2 n3 b0 [R_R17 0 N22317 10k TC=0,0
7 ]. j% a( ^1 \6 m3 ^+ ~. O5 PV_V7 VCC 0 5Vdc( z! D% W& i$ @# v' O# U
V_V8 0 VEE 5Vdc
: K2 ~- g F) H4 V8 qC_C10 N22309 N22317 1000p TC=0,0
' I5 k; w$ J# L" F! S) M) EC_C7 0 N35645 91p TC=0,0 % `6 M8 I2 [% A- A/ ]
V_V2 VCC3 0 5Vdc1 {' P4 c6 o: C- c! q3 d
C_C1 N35593 N35663 1p TC=0,0 6 b7 k" d8 o3 }! q
C_C5 N35645 N35531 1p TC=0,0 9 C7 E4 C# V8 l2 Q( S
C_C2 N35531 N35663 10p TC=0,0
. q7 X' W+ }( c, A& Y* s! ZC_C4 N66667 N35531 1p TC=0,0
7 c8 X2 a! V' T: H3 A) c" \) Y. b% M$ @V_V1 N35593 0 DC 0Vdc AC 10Vac
, F8 F3 k4 t- E( p, L/ kC_C6 0 N35531 1p TC=0,0
; z) l9 ~9 B! ~ `# H3 iR_R2 N35593 N66667 680k TC=0,0
9 N7 a& t5 o. T* wR_R6 0 N35531 200k TC=0,0
: a, G$ g* ?0 Z" E" {5 y5 H TR_R1 N35663 N35593 91 TC=0,0 }& O* Z, }' Y# J, }3 i @, R# B
R_R5 N35531 N35645 10 TC=0,0
1 J2 ?! s# R- A( @4 {; K0 ?8 V6 {V_V3 0 VEE3 5Vdc
9 C3 u- i% B+ w9 q5 ^C_C14 N44706 N44772 1p TC=0,0 8 n7 u8 p7 _5 ]# N& r
C_C13 N44754 N44702 1p TC=0,0 . `: ^0 B% l: ~4 a5 o2 I" h) C
R_R24 N44702 N44754 10 TC=0,0
2 ~/ O q, A. ~1 E5 DC_C11 N44702 N44772 10p TC=0,0
; o1 Y* T: U( e* i/ Q, U/ N7 ^R_R22 0 N44702 100k TC=0,0 0 R# ~* v/ X# s
V_V10 N44706 0 DC 0Vdc AC 10Vac
/ @7 t6 e. H( R$ DR_R23 N44772 N44706 91 TC=0,0 8 M0 @: D6 t( A3 H9 y
C_C15 0 N44702 1p TC=0,0 9 k2 `- z; z+ P; \8 {
C_C16 0 N44754 91p TC=0,0
0 a- P' V! j- N: A7 pC_C12 N44706 N44698 1p TC=0,0 2 y% B d$ J+ N
R_R26 N44698 N44702 220k TC=0,0
! W: b# e0 [8 c# C6 ^ t' y* QR_R25 N44706 N44698 680k TC=0,0
7 {" C3 U$ k ZC_C17 N44698 N44702 1p TC=0,0
/ ~9 J" c1 E- w: @9 z7 `' s YV_V9 N22335 0 DC 0Vdc AC 1Vac ( a2 C8 G5 W2 f
X_U8 VCC N22683 N22387 PBR951
5 l% J4 v7 n7 E* n0 q RR_R34 0 N64836 100k TC=0,0
9 A" @" S' g c7 ?* q( x$ @1 V1 x/ VV_V13 N65556 0 DC 0Vdc AC 10Vac * s* A+ a* P6 Y, d; [; X4 {' @
C_C25 0 N65078 1p TC=0,0
/ u% f* g E6 T! q- ZR_R39 N65606 N65556 90 TC=0,0 2 _/ S2 ? k1 |/ Z; J1 J+ `& U. G2 E
R_R28 N64854 N65118 100k TC=0,0 8 R, o$ W# `" ` `) E
X_M6 N65382 VCC4 N65084 N65084 BF998WR/PLP
' z" R, O9 L! z2 UR_R37 N65556 N65078 900k TC=0,0
4 W# w" D+ z9 t" UR_R29 0 N64854 100k TC=0,0 & m4 C' {9 d6 W5 R
V_V11 VCC4 0 5Vdc
# f: L/ {) L& M3 MV_V12 0 VEE4 5Vdc2 B3 B7 `0 W% l3 Y4 C( A) F& e
C_C22 N65556 N65078 1p TC=0,0
& l3 T! ^0 }) x/ F5 }' wC_C21 N65078 N65606 10p TC=0,0
. s# {8 ?1 B s+ VR_R33 N64836 N65078 100k TC=0,0 / q$ W8 m& x4 d" o1 [, @2 ]
R_R30 N64844 N65304 10k TC=0,0
c# Y( m' V( S' E0 @C_C23 N65594 N65078 1p TC=0,0
; W( e0 U8 O# h4 c( r9 W7 s7 ?X_U10 N64836 N64854 VCC4 VEE4 N65304 ADA4610
/ ^: G9 m# D& H+ j! c. d6 fR_R31 0 N64844 10k TC=0,0
5 Z/ W9 |2 o6 l7 m' F) NX_U11 VCC4 N65382 N65118 PBR951
3 ~( b- z: c& CC_C19 N64854 N64844 2p TC=0,0 0 z# C2 _" O& d0 I, Q- x h
R_R40 N65078 N65594 10 TC=0,0 , @' b( _' q' g. m' l$ ^$ C
C_C26 0 N65594 91p TC=0,0 8 b q0 J3 P" M V
C_C20 N65078 N65084 2p TC=0,0
4 t7 `& X$ s% D* C( ~( _2 {X_M5 VEE4 N65382 VEE4 VEE4 BF998WR/PLP' f$ T+ Z2 O1 m: y+ q; A. ^* t- B+ c
R_R32 N65304 N65084 10k TC=0,0 ; g5 \6 c m `
R_R38 0 N65078 200k TC=0,0 7 Z" L" Q6 I- Q; S; J. m0 B
R_R35 N64854 N64844 10000k TC=0,0 : B& I* r8 m/ m) [
R_R36 VEE4 N65118 1k TC=0,0 , j* G; z, N' O
C_C24 N65556 N65606 1p TC=0,0 . E, T% j; r1 c" y$ w0 ?3 U
R_R41 0 N35593 100 TC=0,0 1 Y1 x5 L. y. d" a7 x
R_R42 0 N35593 100 TC=0,0 9 [7 W4 ~/ e0 _ {- E7 w6 s
R_R43 N66667 N35531 220k TC=0,0
1 i3 W" }: e% X1 O1 V( hC_C27 N35593 N66667 1p TC=0,0
8 W S# B$ L$ w& Z& WR_R44 N68082 VCC3 1.1M TC=0,0
0 ^0 E6 ~" X4 T& _; m. N6 w1 u9 V- SR_R45 N35531 N68082 1.1M TC=0,0 7 ?: A0 [9 v; L2 ?
X_U12 N35531 N71678 N71678 VCC3 VEE3 AD8045
8 V4 G, g- f5 R% B* N.PARAM rx=500k+ u. }( o/ h x5 g! X+ C
**** RESUMING 01.cir ****$ M* X# K1 @+ v% U& m* C$ o& ?8 e2 r
.END9 l V9 l$ P$ i& Z
9 v+ q% i) A5 l+ U**** EXPANSION OF SUBCIRCUIT X_U12 ****
% g! G- ]% i: D" f" ]6 E5 S9 _/ ]X_U12.RCM15 N35531 X_U12.105 10MEG
$ P& \* P6 B# |4 c( S3 Y2 ZX_U12.RCM25 N71678 X_U12.105 10MEG8 r* a* m& W2 H
X_U12.EOS N35531 X_U12.92 POLY 1 X_U12.300 X_U12.100 0 1
' t: t8 D2 u& z# ~X_U12.Q1 X_U12.5 X_U12.9 X_U12.7 X_U12.NPN0 r7 a5 ?2 v: p% E$ |3 v: s1 X
X_U12.Q2 X_U12.6 N71678 X_U12.8 X_U12.NPN3 |, ]% h" K4 j# _. E/ ^+ n. X
X_U12.RC1 VCC3 X_U12.5 537.15 T_ABS
+ C- V& Z2 j$ ^% \------------------------------$
6 Y* X$ D0 F2 E/ O( ZERROR(ORPSIM-16145): unknown parameter
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