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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:
5 P/ T# [& g& Y7 p! P* }) o* TS393 spice macromodel
4 P P* i; ~2 a+ n. ]6 y& }- c$ \* CONNECTIONS :+ R H/ ~+ w4 m* ]
* 1 NON-INVERTING INPUT3 Z8 p% d1 e3 f c9 g$ C" F( e8 V
* 2 INVERTING INPUT
$ i8 F/ R+ y: v: G* 3 POSITIVE POWER SUPPLY
8 t- }9 G3 E. M4 v' q' S( L& B( _* 4 NEGATIVE POWER SUPPLY9 X$ s9 \. }. ~1 m" p
* 5 OUTPUT
9 ?! Z4 R1 s, z
/ ?$ i. {& I/ | _+ p/ R# s8 z$ W8 u. n但是后面的内容没有3、4、5脚,却是这样写的:
8 K8 N% @0 r3 y1 j6 S2 e.SUBCKT TS393 2 1 44 55 33& L) {. w, A L3 z; _2 n; y+ \
) {! X' Y0 D: J( x0 t% B
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?
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$ X7 M# x5 C. Y+ n谢谢!( o, R) |! V; Q
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附TS393的spice模型:6 z7 y9 I; Y R0 T! t
( z4 `+ Q, I! B! w* {! i3 g* WARNING : please consider following remarks before usage
$ ?1 E8 e p; Y9 X- h*$ v' \) I8 { n$ X4 K3 n4 Z/ v
* 1) All models are a tradeoff between accuracy and complexity (ie. simulation
: T$ h- `8 ~, A3 ?% H' i% u* time).
3 u- ~1 i% D$ Y4 H4 u* 2) Macromodels are not a substitute to breadboarding, they rather confirm the
2 f& q$ m9 h# p# r* validity of a design approach and help to select surrounding component values.
: w# A! {0 A0 J' M*- v1 L2 c' P2 P0 v5 M+ f! s
* 3) A macromodel emulates the NOMINAL peRFormance of a TYPICAL device within
/ I6 d. i4 l6 p7 Y# S# x% I* f, ~* SPECIFIED OPERATING CONDITIONS (ie. temperature, supply voltage, etc.).4 g5 n) y+ @8 M8 O$ c/ @8 r
* Thus the macromodel is often not as exhaustive as the datasheet, its goal
F3 D8 Y/ Y& |6 L c. Z/ I1 m# d* is to illustrate the main parameters of the product.6 Q' l0 R' y& {* q( h/ u1 j: j
*' @0 ~: b& q) w! U' s* b: y! }' q
* 4) Data issued from macromodels used outside of its specified conditions$ S) v/ `+ a# \8 j$ R4 j' G
* (Vcc, Temperature, etc) or even worse: outside of the device operating
' _/ k8 m% x. h% Q6 z" m' e8 k* conditions (Vcc, Vicm, etc) are not reliable in any way.+ u1 P" V2 Q5 i9 `7 {
*-----------------------------------------------------------------------------------------
: U8 J2 e0 t9 ?( T. b2 x" {% O. _* TS393 spice macromodel6 t6 E5 e! o; v9 L- ]! i$ V
* CONNECTIONS :, y/ O Y4 V- S8 [% A' ?+ ~
* 1 NON-INVERTING INPUT
: v% ] O5 ~/ B3 b* 2 INVERTING INPUT
. ?9 C& q! o1 V* _- I: H* s* 3 POSITIVE POWER SUPPLY
& ~- z; O; ^' j e1 V* 4 NEGATIVE POWER SUPPLY
6 ?% u( r5 O1 O' a5 Z7 |8 l* 5 OUTPUT
8 P0 d6 c1 _+ U$ S. n*& ?: P. d% ^8 L' R9 \ e y
**********************************************************8 G% q7 ]( f1 u( K
.SUBCKT TS393 2 1 44 55 33" S0 F' a( H! O' }4 y' Q) c
EVCCP 4 0 44 0 1.0" u: N) z7 D; d+ K/ p0 j9 d
EVCCN 5 0 55 0 1.0
. q, J- ~9 G% l1 n% |VREADIO 3 33 DC 07 r |6 f5 a- E4 T
G_ICCSAT 44 55 VALUE= {7.5E-6 + 5.0E-7*V(44,55)}
( V6 X# B8 F# I3 K) X1 ~1 e. j8 JG_IOUT_SINKED 55 0 VALUE={IF (V(1)<V(2), 0, I(VreadIo))}
! S# }' G# V2 i7 f.MODEL MDTH D IS=1E-11 KF=1.050321E-32 CJO=10F! R! O) W: D- Z6 i" Z9 ~
.MODEL DIDEAL D N=0.1 IS=1E-08
/ W1 V0 `3 l% {6 Y; Q& x. \* INPUT STAGE
% x% _0 c6 O) Z4 n/ t0 JCIP 2 5 1.000000E-12
0 d, |/ B# Q" P. c7 I1 {" w4 A9 OCIN 1 5 1.000000E-121 _# B; N/ q+ b' V- `$ n5 g6 E0 _
EIP 10 0 2 0 15 G S% G4 A4 U+ z5 }& Y& S
EIN 16 0 1 0 1# z$ ?% [: B/ t7 F# h
RIP 10 11 6.500000E+01
! H& P4 q7 w+ ]# E. jRIN 15 16 6.500000E+01
, t5 S& M( [4 pRIS 11 15 1.939046E+02 n# c7 ~$ O" ?4 G
DIP 11 12 MDTH 400E-12
' d& d4 p, {7 x3 B, p, Y+ |DIN 15 14 MDTH 400E-12" v" n/ @. o0 h
VOFP 12 13 DC 0.000000E+00/ \) |7 x3 r- P) y
VOFN 13 14 DC 04 ~6 `$ y9 q3 w$ J8 _. w
IPOL 13 0 100E-06 U* B/ x& ^ r; f- m
CPS 11 15 8.5E-095 Z( _7 F# p+ P+ K# M2 a
DINN 17 13 MDTH 400E-12) B/ q, J8 M& {
VIN 17 5 0.000000e+00. h4 [- u9 A3 v7 h
DINR 15 18 MDTH 400E-12. W8 q. X( o) j( J1 ?
VIP 4 18 1.200000E+00
9 c" g& }8 o& W+ r( h. S) I! P4 i0 eFCP 4 5 VOFP 0.00 a' R7 B4 n/ e1 s. N: i5 X
FCN 5 4 VOFN 0.00 ) F! Y9 `1 A& d `
FIBP 2 0 VOFN 2.000000E-08( i5 y: }+ {, Y i! ^ W
FIBN 0 1 VOFP 2.000000E-080 |! h* q Z1 H9 M. Z& q8 I
* AMPLIFYING STAGE0 B, X+ v6 }1 v- `& H( {% {+ l! D
RG1 5 19 2.8E+05
. x" l( C, [+ ]2 V! bRG2 4 19 2.8E+05( y" @- R( R; f, m
DONM 21 19 MDTH 400E-12
; U, P2 U: w* ^' h$ t$ `( IHONM 21 27 VOUT 30008 V3 X; l5 z# U
VINM 5 27 135
& I! W3 F! y4 TDOP 19 25 MDTH 400E-12
7 U2 d3 X2 o) [7 W! m" DVOP 4 25 1.097
8 x4 v* [7 P; A/ }" ]3 SDON 24 19 MDTH 400E-12
D" Y- u* o7 DVON 24 5 1.097' q* a7 D( G( k8 M" f
FIP 0 19 VOFP 104 ! k6 R$ m) {' z3 G5 }/ D5 J9 F
FIN 0 19 VOFN 104; _! T/ h+ D& d5 `4 E( |. d! b0 e# r
EOUT 26 23 19 5 1
( w9 u% i3 z7 R8 KVOUT 23 5 0V7 k, f7 Y. I6 r( n5 q @
RFUIT 126 5 2.5E+09$ u* j' A: ~: Z F% S
DOUT 126 26 DIDEAL 400E-12
9 m: ~) k% ?9 FROUT 126 3 28.33
6 g3 U+ V& z1 }.ENDS
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