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如题,预算放大器的spice模型能否模拟它的噪声特性呢,比如max4212厂商提供的spice模型为* MAX4212 FAMILY MACROMODELS* M% l9 E$ j: ^4 d/ {
* -------------------------& |9 L0 a6 E0 p' n5 k# h
* FEATURES:! Y e: r# D. @: V! T4 @( e
* 300MHz -3dB Bandwidth4 u" c/ D3 K% E3 e: H# d8 J
* 600V/uS Slew Rate0 \: l4 g/ _& p! ^" q
* 5.5mA Typical Supply Current
+ m# R5 ]$ Y7 ~& m/ |! L1 y* 120mA Typical Output Current* z, D5 i4 ~" q6 w' ?9 [0 l
* Rail-to-Rail Outputs
) }9 w' H: v i; F& V* Available in 5-Pin SOT23-5 (MAX4212)
2 h" O& Z6 ?! T# M2 `: O7 ^ a*
" O2 r2 ^; Z O. u*; g y2 |% M& o5 k0 L* E! G
* PART NUMBER DESCRIPTION
' Z4 u1 u7 Y. i* ___________ _____________________________
/ r. w! a" E! a* MAX4212 300MHz, Rail-to-Rail Op Amps 9 k! P& z8 y6 o' Y- I
*
0 K$ o3 ~! s( ?5 n, r/ x*
, G/ M/ Q. ]/ m* ////////////// MAX4212 MACROMODEL //////////////////
. [8 {0 G8 P& H* a6 g7 q+ k+ X6 q*/ |( }9 c2 |, c( H$ X# w& i
* ====> REFER TO MAX4212 DATA SHEET <====& G, S& ?; u5 ~* Y. |! Y5 d3 Q
*
$ \. N% q" {* D' g6 X9 q- H/ m* connections: non-inverting input7 O9 |/ A" B |" H
* | inverting input
! d4 c( E! U# U* | | positive power supply" ~9 X; r; L8 E5 }6 D
* | | | negative power supply& w/ t) _- _5 b* ^" x0 c
* | | | | output
9 c, h* c/ v8 b* | | | | |
u4 I" g0 u& y3 H* | | | | |
K: n! N; i2 f. J1 F* | | | | |
8 P$ V i' n, ]$ k B. {: x* OUTPUT CONNECTS: 1 2 99 50 97& c1 D) m }7 e, `8 x3 Y7 J
*
) B; M/ v3 U) W. K* z& e*
% q, S9 T0 U; B. {! [8 t.SUBCKT MAX4212 1 2 99 50 97* {2 q0 Q, K$ I0 s
****************INPUT STAGE**********************; s9 C- l( |- k) l# s
I1 99 4 .5e-3
2 e0 Q, d& @8 ~9 H, K3 g8 iIBIASE 1 2 5.5ua+ ~0 V1 r; u, J& w' v, K
M1 5 2 4 99 MOSFET
( M! R# q) n: d1 T" d0 PR3 5 50 2828( {* W" w2 r4 k8 _( y
M2 6 7 4 99 MOSFET
# z8 i1 m* l9 Y+ \R4 6 50 2828
5 r Q* Z5 L( I' B/ ~/ aCI1 1 0 2P: I7 Z6 ~8 k. _3 c# a, Q/ X
CI2 2 0 2P
! Z# k! A& y- _! q/ M*DP1 1 99 DA
! o7 \, e# {: j0 Y*DP2 50 1 DA
/ j) s, A. p5 `6 f*DP3 2 99 DB1 N9 o6 f7 p5 z- q- o( N V
*DP4 50 2 DB! k' S0 ^7 H" ^
************************
/ E) U2 Y& I+ Y% B4 g************ GAIN, 1ST POLE, SLEW STAGE************4 x9 r: I7 d$ ^; k
EH 99 98 99 50 0.57 q' o, c/ ?3 D# m
G0 98 9 5 6 7.87e-3
% M4 [4 g$ r- h6 SVB 9 10 0V ( h; G3 i5 G3 u
R0 98 9 127E3
0 [ Q% x1 ~7 |' @4 T7 ]C3 10 98 1.488e-11
* J. \1 V8 S* D( L: w' f5 N*C3 10 98 1.166e-11
# q, d8 }" w6 Q3 H _- e*** ************ M2 y6 F- m. V# ^" e% R. J& S
D1 9 111 DP
8 m, w$ k& E2 v' wD2 112 9 DP7 d9 K' [+ ]6 {* w# l
V11 99 111 50MV
, U8 `- n$ }* m1 I9 y* {6 bV12 112 50 50MV! |8 y& [ Z5 t
************" s2 K2 t: n' o8 h% A9 }6 y
I2 99 50 5.1mA# A, b# g U! w; E7 _$ h
VOS 7 1 0v; ~- k; w6 b+ A/ n
******** POLE STAGE **********
5 g) o2 _; ]; R# `; MG3 98 15 10 98 1E-36 M* P8 W) D( x9 C
R12 98 15 1E3: [5 ^7 {4 E2 C9 |3 Y4 I& C' d
***************************
3 Y2 _* t0 ^+ [, t/ Y( V5 [( c9 |9 ~5 O*********** change for second pole1 B2 Q7 l f* L' [4 n3 y
C5 98 15 .48p; S1 H& a) [' F) B1 o
*
0 T+ @% y" O R' J*************OUTPUT STAGE****************$ r$ M* }& K- C$ \" s( y
F5 99 38 VA8 1
5 c9 _1 w6 E% P1 g' p3 [/ GD9 40 38 DX. E9 H8 B# f9 k, a$ d4 Q
D10 38 99 DX
. w8 ]( N' k. H/ v: E5 ~VA7 99 40 0
, e. o3 l5 r) I; _G12 98 32 15 98 1E-3
# [" U5 d5 Y9 `! C2 q" A. B, c* ^ INSERT NODE FROM LAST STAGE HERE* C+ V2 u8 Q; Y6 n3 E
R15 98 32 1E3
' c, e3 h! o, I0 ^' B*D3 32 36 Dx
# L8 c" H* p3 n+ ~3 b2 C*D4 37 32 Dx
7 x; q' V. D7 |4 [*V5 34 37 .3V# Y v* i% ~; M: Z; O
*V4 36 34 -.3V) N/ x6 J! n* |6 X3 L
*** V5,V4 SET ISC) a. e8 `& h$ I9 W! H9 H
R16 34 97 7.559 P6 T. X4 ~# u) X a- Z
E1 99 33 99 32 1
d6 O9 L+ E3 H! KVA8 33 34 0V1 G1 ~& k' l% z" ~: V/ S
******************************************1 Q5 \+ d. U, H& i: f
.MODEL DA D(IS=100E-14 RS=.5K)
3 f5 O2 T- s- g1 i.MODEL DB D(IS=100E-14 RS=.5K)* n: F3 @8 j# J; `- D% d! _ y
.MODEL DX D(IS=100E-14)
0 E2 k3 Z7 T/ x) t; ~8 Y4 j) e% `.MODEL Dp D(N=0.05)
/ n; k) B( g: S( r.MODEL MOSFET PMOS(VTO=0 KP=1.8E-3)8 g8 t+ Z5 N* c- w% k4 ]3 l, w
*VTO ESTABLISHES INPUT VOLT. RANGE , was -1.7 v( W/ }# H/ \2 a. l- r
**5 m% E, N" _7 }+ U
.ENDS; ~" C' ]5 p& t- e1 S
9 G: \& \9 ^9 \8 J5 S) o1 q
用cadence中提供的ac 分析中的noise分析对含有max4213的电路进行噪声分析时,仿真的噪声曲线包含了该芯片的噪声么
5 U& d7 O! g; N. E2 t小弟初学模拟电路,请各位大侠指教啊。多谢
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