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如果有了一个器件的Spice模型文件,如何才能知道它和符号管脚的对应关系呢?比如下面是在官网下载的TS393的Spice模型文件,文件前面写的是:
) w7 a# T, g* Q8 X* `9 T6 O5 [' u! k$ X* TS393 spice macromodel
( q+ W9 F2 C( [2 O* CONNECTIONS :
, D0 S; L& B) S" z+ |* 1 NON-INVERTING INPUT
, A, `2 D7 A; n, m- |1 [8 U0 V* 2 INVERTING INPUT5 ?: C* s, r! \0 o) @. ^
* 3 POSITIVE POWER SUPPLY
4 P; @! u: f: u& _: @* 4 NEGATIVE POWER SUPPLY
) ~/ }/ I" ~/ p$ T% r# v0 V% [* 5 OUTPUT
6 w8 l O9 W8 k/ F. S- y2 Z- m1 m0 T. b7 U: S! `# J2 t
但是后面的内容没有3、4、5脚,却是这样写的:* Z1 a: X) {* K X: o3 t, ~
.SUBCKT TS393 2 1 44 55 33
! A5 {5 f* O0 A: L$ J
5 q) i p9 z& f8 E' R9 n把这个模型导入仿真软件时,显示的管脚号也是2、1、 44、55、33,那么问题来了,这些管脚号和这个比较器的NON-INVERTING INPUT(同相端)、INVERTING INPUT(反相端)、POSITIVE POWER SUPPLY(电源正端)、NEGATIVE POWER SUPPLY(电源负端)、OUTPUT(输出端)是如何对应的呢?这里有什么规则吗?! v: L8 R8 W# Y' Z$ x
% N4 b6 C: C6 @. S* G; |谢谢!
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附TS393的spice模型:1 e) {5 P" [: {6 e
8 W! x5 H3 x' j0 x* }- b* WARNING : please consider following remarks before usage
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* 1) All models are a tradeoff between accuracy and complexity (ie. simulation
: X1 {" F! v- K" A+ g: Y2 I* time).$ t: S% j# e& f/ d" X, k
* 2) Macromodels are not a substitute to breadboarding, they rather confirm the
3 Z8 \: E- Q/ j; l1 j# y% E* validity of a design approach and help to select surrounding component values.
: B7 a% A. v' j% d( [5 y# D0 f9 [" }*
8 p: G S9 O' d* 3) A macromodel emulates the NOMINAL performance of a TYPICAL device within
" ~5 y& ?. D" W3 A6 V3 ?2 @. W* SPECIFIED OPERATING CONDITIONS (ie. temperature, supply voltage, etc.).
/ v" M H% x5 j) d4 a* Y* Thus the macromodel is often not as exhaustive as the datasheet, its goal
% z8 a0 q6 h. E$ j, t4 S; }: T6 _3 t* is to illustrate the main parameters of the product.
! x* ^5 b. {. a U*
- ^5 O5 ^, K: x$ q6 `6 P5 `* 4) Data issued from macromodels used outside of its specified conditions( ^1 `! ^# }5 Q% u+ X( T
* (Vcc, Temperature, etc) or even worse: outside of the device operating
* l0 K! k2 e' e7 L' x1 R* conditions (Vcc, Vicm, etc) are not reliable in any way.- n1 w' ?; M% m5 w! Z
*-----------------------------------------------------------------------------------------' W5 U5 N* E9 M! }0 v
* TS393 spice macromodel3 s+ g, P' m3 G i
* CONNECTIONS :
8 U1 P) L* N6 A$ r# o. a8 z" y/ P* 1 NON-INVERTING INPUT3 [1 r; O! M! R+ t* {) M
* 2 INVERTING INPUT
5 v" _% z5 L+ l! h4 w) a* O8 i4 s* 3 POSITIVE POWER SUPPLY7 @- D4 r0 O7 f% Z
* 4 NEGATIVE POWER SUPPLY
! C1 K# T! P8 `* v* 5 OUTPUT$ n; K: `; t1 H& l% x" U
*
5 j. c" I, q$ ?$ B" l**********************************************************3 }; [! \9 l1 k) a0 K/ \5 q5 j" F2 n
.SUBCKT TS393 2 1 44 55 33
, e( k) N# I3 u/ A& `# c# fEVCCP 4 0 44 0 1.0. ]5 i. u- n" j) {9 F& F! {+ |" @7 A
EVCCN 5 0 55 0 1.0
8 ^7 ?1 A8 \' _6 V# }VREADIO 3 33 DC 0
: H% ?3 V! e" \( TG_ICCSAT 44 55 VALUE= {7.5E-6 + 5.0E-7*V(44,55)}3 L+ J1 b1 v+ K: P7 t4 y. a% F) ?% Y, [
G_IOUT_SINKED 55 0 VALUE={IF (V(1)<V(2), 0, I(VreadIo))}
" v" g3 b) X, t/ Q9 x$ W; Z, H.MODEL MDTH D IS=1E-11 KF=1.050321E-32 CJO=10F
* s p D5 v3 Z.MODEL DIDEAL D N=0.1 IS=1E-08% I/ c* Z/ s6 }4 ?8 h# d- t
* INPUT STAGE( \8 y9 h% Q4 U
CIP 2 5 1.000000E-12
( B+ e# N& Z: a7 XCIN 1 5 1.000000E-12
3 f( V! C: U& w- y3 R) ?EIP 10 0 2 0 1
: w8 `' A6 M& g: z( l% d6 \. \EIN 16 0 1 0 1 r7 `$ P' ]" M _" P
RIP 10 11 6.500000E+016 w3 s6 N: C, l3 ~' \8 n
RIN 15 16 6.500000E+019 N' ~7 w5 H" P) }. T% R
RIS 11 15 1.939046E+02% s7 j3 L+ U: N% j# V
DIP 11 12 MDTH 400E-12/ E' H. {# w1 [0 a
DIN 15 14 MDTH 400E-12
5 X% c t& x7 q7 CVOFP 12 13 DC 0.000000E+00- y" d# E/ o2 G: x
VOFN 13 14 DC 0: @0 A: h6 `+ O' N a, P3 T3 d7 X5 O
IPOL 13 0 100E-06
( Y$ b) H) p6 }4 S% }: n! Y. CCPS 11 15 8.5E-09) O3 R& Y {3 l' y; E
DINN 17 13 MDTH 400E-12
" E3 A, f/ ?' E$ L# W# I: L$ _! SVIN 17 5 0.000000e+00
3 @( {' H1 E" c, M& G: F; hDINR 15 18 MDTH 400E-126 @9 u% T; x7 F( p/ _
VIP 4 18 1.200000E+007 E! B: K2 `0 f$ p% g
FCP 4 5 VOFP 0.00 # ?) n5 H# P) X. w1 B# x h
FCN 5 4 VOFN 0.00
9 U! t' s7 u3 c1 f) a/ MFIBP 2 0 VOFN 2.000000E-08
+ _4 h% t1 p: b1 g8 HFIBN 0 1 VOFP 2.000000E-08
- ^* q$ N# k& a' F; w! O9 F8 j" B) Q* AMPLIFYING STAGE
|- C$ M+ S6 H( Y$ t' g, Y' oRG1 5 19 2.8E+055 @# Q, Q$ i6 z: E/ q N
RG2 4 19 2.8E+05+ _- \7 m% z, A$ l
DONM 21 19 MDTH 400E-12* e3 k- V5 N8 Y8 C7 O9 [0 Y' t% K
HONM 21 27 VOUT 3000$ }- u+ `+ k) }5 E% ^0 w
VINM 5 27 135) z; b9 k% D1 o# w/ l0 G5 c: x
DOP 19 25 MDTH 400E-12
9 h4 w! z" Z) `) G3 _! i- iVOP 4 25 1.097
; G6 ~3 _8 _# K7 S4 e2 W* l" {DON 24 19 MDTH 400E-12
) g2 ?2 W" c! c+ X5 V, xVON 24 5 1.0979 d5 F& z8 R: M4 ]3 n
FIP 0 19 VOFP 104
; z/ N, p3 S! l0 UFIN 0 19 VOFN 104& h7 @) C2 `0 x; h5 a, @
EOUT 26 23 19 5 1
) a t* m O( Y1 BVOUT 23 5 0V
/ f/ h/ Q+ J. LRFUIT 126 5 2.5E+09" }3 w' L( S# E' D) `$ }3 @0 P
DOUT 126 26 DIDEAL 400E-127 l% U- _* e8 ~ Q7 @
ROUT 126 3 28.33
; o( X8 n& i8 W& P! K s.ENDS
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