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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:
) H+ Z" m' b# }* u* TS393 spice macromodel
* X# j. s, h* X3 Y* CONNECTIONS :
6 S" ]% g# t! }9 [* 1 NON-INVERTING INPUT
' S+ f- j5 L5 [$ f3 Z6 V* 2 INVERTING INPUT
8 s( {5 O9 k4 R4 d- }9 y* 3 POSITIVE POWER SUPPLY
# A. L1 C7 p: U9 q' p* 4 NEGATIVE POWER SUPPLY! i1 I! ^+ F7 p! \. R; s/ c
* 5 OUTPUT
0 U# k1 l4 |6 w* O: ^- X
3 u4 t: h. u" c% E3 f* n但是后面的内容没有3、4、5脚,却是这样写的:9 Q4 B/ }. m9 m. }: s6 Q
.SUBCKT TS393 2 1 44 55 33
2 q( X$ v6 [4 S7 ^* Z
! J5 \- p) K4 r/ l: ~% S; \/ V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?' W% G; K( n$ t+ M" B
7 W. Y# f4 f- F& ?9 p. C$ L4 b谢谢!
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- i1 ]( d. l. {9 }, K附TS393的spice模型:
8 c8 Y$ u C/ y$ u
' b5 S8 b% p2 Q/ m* WARNING : please consider following remarks before usage( u! }1 f6 H- _$ Y0 {% ^
*9 D. B9 {) T1 z( u( ^8 x( S: ?
* 1) All models are a tradeoff between accuracy and complexity (ie. simulation
( n5 {' f1 q/ A: O* time).
' h. k6 r: l. Y- k, y+ g0 {* 2) Macromodels are not a substitute to breadboarding, they rather confirm the0 l+ b" D4 Y6 Z; B" _) c
* validity of a design approach and help to select surrounding component values.. J" G/ a6 L6 [ T! j. s
*
@) C M: t, v: w( m+ h* 3) A macromodel emulates the NOMINAL peRFormance of a TYPICAL device within # j2 u; ~4 Q/ j x' i' a6 z- @! d
* SPECIFIED OPERATING CONDITIONS (ie. temperature, supply voltage, etc.).
3 R! b/ J: G6 P; [9 _! x* Thus the macromodel is often not as exhaustive as the datasheet, its goal
# M a# B3 M! _1 `9 T+ }* _6 o, @* is to illustrate the main parameters of the product.
5 E, G8 x9 d+ ~0 ~% g# r* X# o*
* Q6 i7 m$ o1 H6 c y* p( w4 ?* 4) Data issued from macromodels used outside of its specified conditions1 y" B5 s% B, V# Q$ I
* (Vcc, Temperature, etc) or even worse: outside of the device operating
{. D2 C- Q& ~5 F0 l! M* conditions (Vcc, Vicm, etc) are not reliable in any way.
$ a6 f$ Y: r2 q/ p4 W*-----------------------------------------------------------------------------------------& @5 W2 C& @# g( z
* TS393 spice macromodel- W- N$ z- h% n' I R- u& U; ?
* CONNECTIONS :
3 P9 s2 u- u8 I( b0 j* 1 NON-INVERTING INPUT) i5 \8 @( M2 z2 p! u
* 2 INVERTING INPUT+ R- m( v" g' A9 r& z2 C
* 3 POSITIVE POWER SUPPLY
" f! I) e, f( r+ ^& _; d* 4 NEGATIVE POWER SUPPLY
$ d2 |/ e" V' a" Y6 b5 V8 h* 5 OUTPUT' _. V. w. p& a+ V
*
" ^& c2 T4 S6 c% _ O, V' t**********************************************************
/ j: O! D. w9 Z; f. |+ o$ O.SUBCKT TS393 2 1 44 55 336 c5 S& g( Y' t- g! v
EVCCP 4 0 44 0 1.0
/ U! w( c8 G d& YEVCCN 5 0 55 0 1.0; |) [# [; v8 C- ?8 M; y' c9 I1 f& a# G
VREADIO 3 33 DC 0
% D9 M+ L- G! MG_ICCSAT 44 55 VALUE= {7.5E-6 + 5.0E-7*V(44,55)}
6 u1 X! ^' H. v8 LG_IOUT_SINKED 55 0 VALUE={IF (V(1)<V(2), 0, I(VreadIo))}
$ {& Z/ B. y# } D4 k. S, A1 U.MODEL MDTH D IS=1E-11 KF=1.050321E-32 CJO=10F
; r% W: t6 P4 a' H& d.MODEL DIDEAL D N=0.1 IS=1E-08. E2 p* E1 L2 g3 v0 b2 h
* INPUT STAGE* Z' k4 N1 b! C( r4 v
CIP 2 5 1.000000E-12- I& Q8 U* B# u# s
CIN 1 5 1.000000E-12
' O# Y* s' `8 h$ B9 i5 P1 zEIP 10 0 2 0 1
3 ?7 I( K5 J2 g: E: i7 `) \6 } JEIN 16 0 1 0 1
7 B8 m9 X: N; M+ R3 D5 a4 k" E0 y! sRIP 10 11 6.500000E+01
' ^8 q1 N! I- ]& t" M1 [' o; qRIN 15 16 6.500000E+01* s0 n/ B, J2 @, |
RIS 11 15 1.939046E+02
# W: X8 K( N* ~0 X; eDIP 11 12 MDTH 400E-12
1 F* i8 s. _5 [& ], I/ ], n/ q+ s* @; QDIN 15 14 MDTH 400E-12# T% A1 L' E9 A: f7 u4 \) E
VOFP 12 13 DC 0.000000E+00& ]" l$ W- Z; a: z
VOFN 13 14 DC 0
) ]4 t& S! ~* y) @% L3 qIPOL 13 0 100E-06* [3 j2 ]8 ]! ^8 l4 N. J
CPS 11 15 8.5E-095 H& p# O# E G5 t$ n% [: r* y
DINN 17 13 MDTH 400E-12: _5 Y, r! }! I0 m5 e
VIN 17 5 0.000000e+00
# t! R |* u3 x/ PDINR 15 18 MDTH 400E-12
4 L9 N* w6 I: E. C( VVIP 4 18 1.200000E+00
# q2 ?: k' h; }FCP 4 5 VOFP 0.00 7 ^( e0 z8 N$ z! d. Y" d$ @4 A
FCN 5 4 VOFN 0.00 4 X% v: c! w( J& ]* D' J
FIBP 2 0 VOFN 2.000000E-08/ g/ d; `& {4 `2 \8 D
FIBN 0 1 VOFP 2.000000E-083 M; K* P' H' i6 U9 w3 `' a; o
* AMPLIFYING STAGE1 D( z- E5 J3 A* W) H/ d
RG1 5 19 2.8E+05
7 w) o, Z- D4 J ^( MRG2 4 19 2.8E+05
$ x, ^0 b0 d) ADONM 21 19 MDTH 400E-12' ~) P A' q! z0 S* d0 p9 O# s( M
HONM 21 27 VOUT 3000( U% y7 C* d( H, ? V, ?' s8 L
VINM 5 27 135
4 f: K6 v' E, q2 VDOP 19 25 MDTH 400E-12) H4 ~! @) T) c9 w" n' u% a
VOP 4 25 1.097- l; a/ I8 L, X' l* |% F
DON 24 19 MDTH 400E-121 \$ S( ]: x7 [6 E2 M
VON 24 5 1.097
1 U- q& j6 C& n* Z7 X8 lFIP 0 19 VOFP 104 2 V2 x$ V9 [. Z4 j$ J. \
FIN 0 19 VOFN 104
" V3 C$ _7 j# L+ @EOUT 26 23 19 5 1
. K0 j; F1 D1 j/ w) N- C9 ]VOUT 23 5 0V: \1 I: R! O5 E- O+ U% s: d
RFUIT 126 5 2.5E+09
. Y9 k2 _! C: D' kDOUT 126 26 DIDEAL 400E-121 u( u6 g* n5 l
ROUT 126 3 28.331 S: ^2 g8 f' T; ^; \; e
.ENDS
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