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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:
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! O( s# o$ r0 k; y7 e0 ?! Q& b: C(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。)/ r, t- t( g$ G3 K0 G- ^& X( g+ c) [
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**** 12/18/15 18:43:33 ***** Pspice 16.6.0 (October 2012) ***** ID# 0 ********1 Q! i* v) L9 I
** 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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" u- O5 c' j7 O; w q- `******************************************************************************# q0 m6 k3 s% o# n8 p3 M, E
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** Creating circuit file "01.cir" $ L& G/ P, ?# V% Q
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS
* Z2 S& J. B* C" x3 D3 f*Libraries:
$ @5 V6 |* Z0 j* Profile Libraries :( K# A( [$ H+ R4 [
* Local Libraries :/ ?7 \* y- H. |' p
.LIB "E:/work/PSPice/PSpice_Module/AD8045/ad8045.lib" , O) f" _4 k2 p. g8 q
.LIB "E:/work/PSPice/PSpice_Module/PBF951/pbr951.lib"
8 m# {* [0 F! z+ g4 m e$ p.LIB "E:/work/PSPice/PSpice_Module/bfg520_xr/bfg520xr.lib"
% |4 n( i+ s3 s6 l* @% d$ b" M.LIB "e:/work/pspice/pspice_module/ada4610/ada4610.lib"
7 ]" e y& L8 @: G2 T- w/ Z.LIB "e:/work/pspice/pspice_module/bf998wr/m4.lib" ' d, k9 P- k$ s1 J1 j3 d
* From [PSPICE NETLIST] section of C:\Users\Administrator\AppData\Roaming\SPB_Data\cdssetup\orcad_PSpice/16.6.0/PSpice.ini file:
+ E8 e3 |3 r- E*Analysis directives: ; \- ]/ _4 e9 V. D, M: S0 Q( \
.AC DEC 10 10Hz 100000000Hz# f& i e, j- S1 e' R* K7 Z% a2 O- n
.OPTIONS ADVCONV! O% O. a+ q# E
.PROBE64 V(alias(*)) I(alias(*)) W(alias(*)) D(alias(*)) NOISE(alias(*)) 4 P$ b) T$ ?* J0 o I8 h
$
% g( G4 _( t0 f9 N. I5 d2 PERROR(ORPSIM-16058): Command ignored0 `. T- a' H$ @' t3 ?" d; n
.INC "..\SCHEMATIC1.net" 3 n. e. L) `* s% ^, v; C6 X6 o
0 M% i' p; x2 s) d
**** INCLUDING SCHEMATIC1.net ****
1 |6 L, t \/ X+ {, s: h& f/ S* source TEST30 r% v+ ~: N4 E4 G1 q
X_U3 N22677 N22309 VCC VEE N22589 ADA4610 & o9 z h" g$ ]! A* \7 S5 J
C_C9 N22335 N22327 1000p TC=0,0
0 ~/ R' J% q- Y- [, A! @X_M4 VEE N22683 VEE VEE BF998WR/PLP1 q- C3 g; a& q- G( u
R_R15 N22317 N22589 10k TC=0,0 & o; q' ~& X+ s9 _
R_R16 0 N22677 500k TC=0,0
/ k1 e6 V9 E5 F. t) }/ O$ L; @R_R19 N22309 N22387 500k TC=0,0
) O6 F, ~! ~0 q$ y3 W) CR_R20 0 N22309 500k TC=0,0
, T( i6 R' x$ _7 O3 V- ]R_R18 VEE N22387 500k TC=0,0
8 j4 \- L0 a/ c5 ]R_R13 N22677 N22335 500k TC=0,0
5 t$ m- A# l; T4 ^ | @R_R14 N22589 N22327 10k TC=0,0 ! Z. M0 ^% {) B. n3 C
X_M3 N22683 VCC N22327 N22327 BF998WR/PLP* F& S7 n1 L3 l. W
R_R17 0 N22317 10k TC=0,0
6 j- [/ A; }0 F2 M! KV_V7 VCC 0 5Vdc
' m1 @0 s- p. q+ FV_V8 0 VEE 5Vdc
0 I, N2 A& S) w, N- K0 LC_C10 N22309 N22317 1000p TC=0,0 % w6 Q6 R( c& X7 ^
C_C7 0 N35645 91p TC=0,0 + S3 N s& E1 u+ Z$ q/ D3 x
V_V2 VCC3 0 5Vdc
& _, S/ w) A' y: }. Y# ]C_C1 N35593 N35663 1p TC=0,0 9 S# d: e: R$ y% G; l& k& W2 A
C_C5 N35645 N35531 1p TC=0,0 - I1 L' ~; D! _: Z) `
C_C2 N35531 N35663 10p TC=0,0
: k8 N# U' K$ |, i Y8 X( E. OC_C4 N66667 N35531 1p TC=0,0 & ^5 r2 F W+ S% V7 j* d
V_V1 N35593 0 DC 0Vdc AC 10Vac
2 e! g; v ^) Z" U( ^C_C6 0 N35531 1p TC=0,0
$ v) U1 L- @# z) }R_R2 N35593 N66667 680k TC=0,0 6 _! z. T$ r$ @
R_R6 0 N35531 200k TC=0,0 9 `9 Z' t$ _: v' L: s, s' y2 T
R_R1 N35663 N35593 91 TC=0,0 3 \4 h& D% @0 a- p
R_R5 N35531 N35645 10 TC=0,0 6 g" Y# X( N3 S, l- {
V_V3 0 VEE3 5Vdc/ V S+ ^8 [7 D) ^3 `
C_C14 N44706 N44772 1p TC=0,0
4 d4 g5 C! y7 s8 o5 U7 S6 s, j: zC_C13 N44754 N44702 1p TC=0,0 5 ]4 _7 l0 v) g0 O
R_R24 N44702 N44754 10 TC=0,0
' a( c U& P' H3 f- S# vC_C11 N44702 N44772 10p TC=0,0
! X( B5 H& ]2 c9 `R_R22 0 N44702 100k TC=0,0
% B. Y: r8 x; a! _/ ^V_V10 N44706 0 DC 0Vdc AC 10Vac 5 t. m6 ?- i, r# x& i) R
R_R23 N44772 N44706 91 TC=0,0 " `$ y7 ~) c6 i W: m8 c
C_C15 0 N44702 1p TC=0,0
0 }3 w! b$ F- T( P" E0 eC_C16 0 N44754 91p TC=0,0 " J! R2 a) E9 Q/ S
C_C12 N44706 N44698 1p TC=0,0 2 K* u c8 b* r' Y4 O, x0 q8 p
R_R26 N44698 N44702 220k TC=0,0
7 |& f& ^2 {# ^) S) F2 L! t/ WR_R25 N44706 N44698 680k TC=0,0 , p0 K( ~# Z2 M- x# c' ?
C_C17 N44698 N44702 1p TC=0,0 : E) g# T. s9 W) ^# I* {
V_V9 N22335 0 DC 0Vdc AC 1Vac
3 \! |2 r8 t- {+ b9 Z- l2 yX_U8 VCC N22683 N22387 PBR9516 K: {' ^) f) W& v9 ]
R_R34 0 N64836 100k TC=0,0
2 }( _9 i3 c, g8 R( d0 F [ \6 RV_V13 N65556 0 DC 0Vdc AC 10Vac
6 E5 d4 _- I3 ?* l+ ~C_C25 0 N65078 1p TC=0,0 6 B( R/ q. Q( y' s& T0 w; V4 r
R_R39 N65606 N65556 90 TC=0,0
5 m1 Z5 _; r1 o! j8 {& |R_R28 N64854 N65118 100k TC=0,0 & F1 {/ f9 N, j7 E
X_M6 N65382 VCC4 N65084 N65084 BF998WR/PLP' h/ A* G3 S, C2 F8 M c
R_R37 N65556 N65078 900k TC=0,0 ( P7 y2 U# a. Q/ U7 m! h
R_R29 0 N64854 100k TC=0,0
7 j D% y4 H7 a4 m1 W0 X3 F5 mV_V11 VCC4 0 5Vdc
# f, J& `# g8 `$ f. AV_V12 0 VEE4 5Vdc3 z2 E. L9 s9 c" C
C_C22 N65556 N65078 1p TC=0,0 4 m" f$ U- V* ]& e) W$ S
C_C21 N65078 N65606 10p TC=0,0 ' d5 d8 S& l" { V
R_R33 N64836 N65078 100k TC=0,0
' B- ]4 R( ?# Q$ W9 W7 c. h0 [R_R30 N64844 N65304 10k TC=0,0
" v& V% @& |) n' ~( x L1 ~6 ], _1 bC_C23 N65594 N65078 1p TC=0,0 * }- q1 B! N/ Y/ n9 j: P
X_U10 N64836 N64854 VCC4 VEE4 N65304 ADA4610
8 J2 F+ t6 Z ~! M/ BR_R31 0 N64844 10k TC=0,0 7 |/ H$ y9 c( y: k" p; Y
X_U11 VCC4 N65382 N65118 PBR951
5 [2 K' v4 _. Q j1 _C_C19 N64854 N64844 2p TC=0,0
. W0 T5 o. g4 Z. nR_R40 N65078 N65594 10 TC=0,0 6 z) E5 x' Y# [( L# J$ s$ ?- j+ p3 \
C_C26 0 N65594 91p TC=0,0
& ~: X r+ T1 T+ IC_C20 N65078 N65084 2p TC=0,0
& a Z' T: L# p6 |X_M5 VEE4 N65382 VEE4 VEE4 BF998WR/PLP3 s% Z6 e! V! F
R_R32 N65304 N65084 10k TC=0,0
; P- L: w: |% \+ G! ]# m& QR_R38 0 N65078 200k TC=0,0 7 }( t( z# Q9 ~9 m* z
R_R35 N64854 N64844 10000k TC=0,0
; J% D. E2 |) J9 PR_R36 VEE4 N65118 1k TC=0,0
9 S; `; r/ t O" w2 I2 k: SC_C24 N65556 N65606 1p TC=0,0 0 B! p) _0 m$ o9 K
R_R41 0 N35593 100 TC=0,0 6 ?$ c: r- `2 V
R_R42 0 N35593 100 TC=0,0 ( ^$ Z( S4 i" u
R_R43 N66667 N35531 220k TC=0,0 - e( N8 D$ Z8 ]- ^' w5 N, H
C_C27 N35593 N66667 1p TC=0,0 - ~" i/ l- ~* I6 r( c9 N) H
R_R44 N68082 VCC3 1.1M TC=0,0 * s" J; P: D8 Q( {5 D7 {
R_R45 N35531 N68082 1.1M TC=0,0
* j, w* M5 V& u2 ?! p& ]2 uX_U12 N35531 N71678 N71678 VCC3 VEE3 AD8045
5 l8 F+ x: K0 t) O. `3 ^5 C.PARAM rx=500k: D, ~2 K! S6 m! V
**** RESUMING 01.cir ****: g1 |- `% T% P7 ~
.END
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**** EXPANSION OF SUBCIRCUIT X_U12 ****
R7 T6 ^$ V4 h% k- Z5 d r8 VX_U12.RCM15 N35531 X_U12.105 10MEG
5 w) s* A2 i+ d2 i$ }& qX_U12.RCM25 N71678 X_U12.105 10MEG
# t4 j$ v- R# g/ c( RX_U12.EOS N35531 X_U12.92 POLY 1 X_U12.300 X_U12.100 0 1
" Y8 ~; P; ? Y EX_U12.Q1 X_U12.5 X_U12.9 X_U12.7 X_U12.NPN
& M& s& N! U8 ?' g% rX_U12.Q2 X_U12.6 N71678 X_U12.8 X_U12.NPN
8 O4 D1 w. [8 b) O# [X_U12.RC1 VCC3 X_U12.5 537.15 T_ABS* ^0 u. e# N+ }5 O
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ERROR(ORPSIM-16145): unknown parameter
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