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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 MACROMODELS1 r8 d" |0 T) O# {
* -------------------------8 D5 s9 r; @5 ?- X* {) O
* FEATURES:: [. S7 X% G7 }5 T5 E# S$ h X' ~* x
* 300MHz -3dB Bandwidth
( Q$ W/ g" C6 T# {- ^& p& A+ ~* 600V/uS Slew Rate
) i1 O% |. l' ~( b2 I$ F" d2 \1 n& f* 5.5mA Typical Supply Current
7 C9 n4 B1 `8 _; b* 120mA Typical Output Current3 y2 m- p( C: k3 O. O
* Rail-to-Rail Outputs- D% ?2 _6 S7 e L9 [: \/ `
* Available in 5-Pin SOT23-5 (MAX4212)8 I! @5 L7 i$ m
* c( z1 O" t7 u o/ P H3 I3 D
*
7 z# G, Y: p% [# k" \$ L5 N9 @* PART NUMBER DESCRIPTION! ~: ?2 {* G+ X% L G
* ___________ _____________________________
J2 Y5 k) A) e, z; c* MAX4212 300MHz, Rail-to-Rail Op Amps
t- _) u7 P& D; x. g*
& i7 d: ~# a/ Y*
5 [- m1 E; i m5 w* ////////////// MAX4212 MACROMODEL //////////////////
. ~# @+ H% E: H*
: @" ^! V: [/ a* ^1 q8 q$ n* ====> REFER TO MAX4212 DATA SHEET <====
3 U7 U1 e3 ]5 q; a' M6 Q*
& C, K" u8 ~( A1 s! q* connections: non-inverting input) b) C. X, [7 z
* | inverting input( O9 {" Z8 o: h) v5 D4 Z7 Y, `
* | | positive power supply
7 [9 G! i5 d5 x, h4 F* | | | negative power supply
1 H/ j9 q$ Z6 |9 ]* | | | | output j6 h2 }* Z3 P; x
* | | | | |2 k8 F1 [4 T9 u. [
* | | | | |7 w9 f2 o/ i; _" G
* | | | | |/ ^9 C! J3 l! `: M$ N3 _
* OUTPUT CONNECTS: 1 2 99 50 97
. C, x1 W, Y# s* O! z*
1 O6 b( F# c: }6 d6 `8 l I*
2 D- k4 a1 u3 ~.SUBCKT MAX4212 1 2 99 50 97
: g- N5 v* F* D****************INPUT STAGE**********************0 d" m# z4 b8 h4 Y. z' ]
I1 99 4 .5e-3
5 Y! o. W0 ]! V) [* B3 NIBIASE 1 2 5.5ua
" \" y) I0 f0 O* DM1 5 2 4 99 MOSFET
3 [5 W$ C2 L! P! \: Y& fR3 5 50 2828! {3 }6 a5 o# X' s9 @& [
M2 6 7 4 99 MOSFET
, V% _" j; t0 z, Z0 B0 HR4 6 50 2828
! ~& t1 P" B% m' h/ vCI1 1 0 2P8 M: j9 g' @- P- `/ e
CI2 2 0 2P
" t0 X$ V5 _; {3 H2 f8 y*DP1 1 99 DA
, }' R7 H2 F" B- y1 N6 ?*DP2 50 1 DA% P+ s' a* s/ N) k l
*DP3 2 99 DB6 p/ ^% p1 ~8 z7 w [, U
*DP4 50 2 DB
& C1 b# `, Q! i9 t, b7 m. E************************ y0 _/ a6 j) }3 E) t- u
************ GAIN, 1ST POLE, SLEW STAGE************! m: F5 y/ z- ~
EH 99 98 99 50 0.5; o8 w) o$ d, m& y: x
G0 98 9 5 6 7.87e-3
' m! h% P4 B5 Y( L0 V! \- NVB 9 10 0V ! r# Y" J/ _! @, F
R0 98 9 127E3
& F5 Q* h" G" \5 c) hC3 10 98 1.488e-11* w0 f+ L& K5 m% n
*C3 10 98 1.166e-11
$ U2 u* g7 g% J# V: p*** ************ f1 q* N/ t9 _$ t6 O- q5 F
D1 9 111 DP0 M3 }7 b8 F; O5 ]+ i
D2 112 9 DP2 R* Z/ p6 ^9 V( i. P. g3 I
V11 99 111 50MV
4 ^( {% @/ F& w( b; X7 |0 ?V12 112 50 50MV4 T4 F; w% J. U) O
************
' a8 f9 t' T+ I) b3 c5 x4 u9 z2 mI2 99 50 5.1mA
h% i/ q- C9 w2 ~0 a! CVOS 7 1 0v% V$ G/ J" r. x6 p+ y* n, Q
******** POLE STAGE **********
9 W2 f: t4 i: U+ ~" [G3 98 15 10 98 1E-3
! |2 m9 ]+ e1 N; ]R12 98 15 1E3
y' P( ^! J2 F. A0 j% z& A***************************% t( ~4 [$ D& W4 D3 b- G5 t
*********** change for second pole
* H! E$ f; L( ]8 y4 UC5 98 15 .48p; e" Y# W* x3 f, S/ j
* % i! C& b6 I9 D$ N+ \( A+ ?
*************OUTPUT STAGE****************+ q) _( X7 p* v, s5 m3 p* ]! I
F5 99 38 VA8 10 m2 d" ]# J; j+ ^
D9 40 38 DX# |/ Y N/ Y% \) y
D10 38 99 DX3 R& c' k# \$ T( }8 P8 ~/ _$ @
VA7 99 40 0
0 q- J% _) m3 d* i+ `! QG12 98 32 15 98 1E-3
7 Q' {# m' C7 t2 k2 o( U* ^ INSERT NODE FROM LAST STAGE HERE: ]# M; [1 s) g' ~6 C; V
R15 98 32 1E3
) e b O( x3 Q E! t*D3 32 36 Dx
2 H! M8 k5 S. L* G" {, K) x1 t5 H*D4 37 32 Dx: v) X W u/ s7 h" P
*V5 34 37 .3V
2 Q& L5 H" `1 T$ \' }*V4 36 34 -.3V
5 U$ l- A3 E* K$ M*** V5,V4 SET ISC
! u% D( @9 t( H! X. X1 iR16 34 97 7.55& }6 S5 F; B: c
E1 99 33 99 32 1
. m" ?- C8 ~$ m$ m# nVA8 33 34 0V
M, N2 M" D: x' H6 {; }+ g3 M: F******************************************" D. L2 S6 A5 X- }; \
.MODEL DA D(IS=100E-14 RS=.5K)
& r) G' U% l- R/ r5 X/ v0 I.MODEL DB D(IS=100E-14 RS=.5K)
0 M: e2 G" @7 G B: E; Y.MODEL DX D(IS=100E-14)
+ H8 n9 G G. |9 I5 N1 i+ q.MODEL Dp D(N=0.05)
! h$ l; h ?0 `* s: u.MODEL MOSFET PMOS(VTO=0 KP=1.8E-3)0 D# v M7 x: a# x' q y
*VTO ESTABLISHES INPUT VOLT. RANGE , was -1.7
?4 b( T# ]: G4 q" ^! g**% j2 ~3 A' J1 @, s
.ENDS' i2 U! Y" z$ k0 e4 ~, Q8 p- u* n
# E0 H0 X g5 c9 a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- P$ p: x; D9 k; @6 n& ~
小弟初学模拟电路,请各位大侠指教啊。多谢6 d4 D0 }1 P+ ]6 t8 z
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