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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% _7 f( n6 t" ]: z s: x
* -------------------------; P! j7 ~5 q7 i
* FEATURES:
% l8 E7 t- z0 w5 Y2 z" v" C* 300MHz -3dB Bandwidth- z9 y ^1 X, `1 R9 n/ m
* 600V/uS Slew Rate
: O7 F+ a' F' E, ~- \2 A* 5.5mA Typical Supply Current+ d; Q1 N. d& o" }, g( e0 i0 x. _
* 120mA Typical Output Current
3 T$ Y {8 W [; N* X3 ?& K* Rail-to-Rail Outputs, n; ? o+ u. n0 ^* T
* Available in 5-Pin SOT23-5 (MAX4212)
' M' ?0 ^, M4 L- ^6 ?*9 r6 Q) p. o- O ]9 t* ^! P3 n6 z/ M
*
" v! B- Q7 r7 R9 Y- U* l* PART NUMBER DESCRIPTION9 R: C r+ b- b7 S7 m0 Z
* ___________ _____________________________# U7 ^( a" ]/ K4 W% N
* MAX4212 300MHz, Rail-to-Rail Op Amps
. p+ V4 y! B9 ]2 @: H D3 A*
( z7 T! ? V6 g4 q- P3 _*
1 c o, Q$ U% {9 R1 u* ////////////// MAX4212 MACROMODEL //////////////////. }$ c9 C& ^+ {- i
*
" H, U: i y' t5 M* ====> REFER TO MAX4212 DATA SHEET <====. }- `: S& o" ^
*; ~0 n- F9 B0 A8 ?
* connections: non-inverting input
4 ~$ R6 g. [* A4 G+ e$ d, Y* | inverting input" B# B+ E$ s: |3 a
* | | positive power supply
, [( { R# x1 Z7 C, e* | | | negative power supply H; U: h. F" n3 b% [$ J
* | | | | output7 b, ]7 B% s& \( T* \7 P& j2 S
* | | | | |
$ W3 Z# _( D# ^! ?* | | | | |
) w; U2 e" U5 M/ H* e& z7 c+ d) X$ j, r* | | | | |+ S" B ]( v& l, R
* OUTPUT CONNECTS: 1 2 99 50 97
5 N" \0 _9 L$ |) z7 }! a& {) A. i3 E*
3 [9 U2 Z$ G9 R$ S1 D" ^! a0 x+ O*( E5 N* J. e& B, |3 s
.SUBCKT MAX4212 1 2 99 50 97* o2 r' C: K& ^9 O
****************INPUT STAGE**********************
6 ?9 O# s/ ?6 L% HI1 99 4 .5e-3# D+ ]: e, }7 S
IBIASE 1 2 5.5ua8 Q; @. o$ n* U1 d5 j0 w1 h, ^
M1 5 2 4 99 MOSFET
0 i: W9 |: S# @) d% a/ aR3 5 50 2828
1 {% w8 \# W0 b9 ^1 G8 n" z' kM2 6 7 4 99 MOSFET
1 `" }4 p/ T5 k jR4 6 50 2828* U1 S& f. ^) P5 _5 X/ k5 C
CI1 1 0 2P5 A: w# n) u# U @$ T& e: {# q4 D
CI2 2 0 2P* r( s& O4 ?2 w R9 z
*DP1 1 99 DA
9 h: b, N, ~# Y% X; O*DP2 50 1 DA$ ?1 J# V- R6 J+ {: M
*DP3 2 99 DB0 o! @2 `% O/ P; H. Q2 |, w, D
*DP4 50 2 DB
" m1 ?# W9 U! ~************************4 j+ c/ C2 j* X$ G
************ GAIN, 1ST POLE, SLEW STAGE************
& `2 F7 @0 J- [) }1 M- _EH 99 98 99 50 0.5. ]& y5 b" P% Y. H1 {
G0 98 9 5 6 7.87e-3
* r0 B Y3 h& }& c: a9 }! [VB 9 10 0V
. Q: ?/ e2 @7 s, aR0 98 9 127E3
: {$ R* U6 m; F" w" d/ SC3 10 98 1.488e-11
; r3 N7 A$ H) {. ~, z" l*C3 10 98 1.166e-11
- J- l9 t+ j; w* Q*** ***********
7 f% m& _8 Q u) h# L$ TD1 9 111 DP
" M3 s! ?! m0 V; k) k0 n0 l; CD2 112 9 DP7 e4 U6 J1 v* ?( z" O" K
V11 99 111 50MV
2 j5 u% ?. }% T: uV12 112 50 50MV
w2 z& j6 }2 ~% o- |. }* t! O8 O************, |2 j5 q* i% @' U4 H
I2 99 50 5.1mA' a2 d1 M$ y3 L( Q. X6 k! f- O
VOS 7 1 0v
6 N7 l$ ?2 W5 z& S; n9 ]& ^******** POLE STAGE **********
' w+ E3 s. L' iG3 98 15 10 98 1E-3
7 Z- `# s9 ~( z) h% C( iR12 98 15 1E3
/ c6 s* s+ r7 s/ j* r3 O/ R) v***************************
8 c7 d, s$ O E*********** change for second pole# s2 `; L4 q+ E7 p2 V: P
C5 98 15 .48p3 C" K, P+ S( k* x! F5 S# H9 m! }
* ; j- G$ k* U- W7 k2 _5 Z& T
*************OUTPUT STAGE****************& T$ y% g: Q u$ s$ Y- V) P
F5 99 38 VA8 1
5 D: N+ U5 d7 U: I# _: y8 ?D9 40 38 DX+ N* ]& k! t/ O
D10 38 99 DX- e) u9 Y- c% |) t
VA7 99 40 0" f1 _( P% X2 E" F' i7 a. r
G12 98 32 15 98 1E-3
3 z; ?8 G1 h& ^1 Z5 s+ _4 W% ?* ^ INSERT NODE FROM LAST STAGE HERE, l6 _: F, H3 c8 `
R15 98 32 1E3
I! r9 p4 u6 W( z4 G8 {*D3 32 36 Dx
0 @" ]; I1 ^5 v4 e*D4 37 32 Dx: p$ o" `" ~: q8 H+ E* B
*V5 34 37 .3V9 c! D2 i1 b: Y1 J- C3 ?
*V4 36 34 -.3V
) B u, D3 `+ U# t7 o4 g0 d- c*** V5,V4 SET ISC) C# e0 |* M# e. M
R16 34 97 7.55
2 O3 V0 B7 A# V4 ~; Z2 x. nE1 99 33 99 32 1
, F/ ?, |" O4 g% _8 N5 f( E3 YVA8 33 34 0V" W% q* G/ Y* d8 _3 ~0 x1 U
******************************************
" j% l3 @. D! _" N.MODEL DA D(IS=100E-14 RS=.5K)4 B- m6 c# M! |
.MODEL DB D(IS=100E-14 RS=.5K)2 _0 L: w& C# o% _/ K, H C# \6 c
.MODEL DX D(IS=100E-14)
( o2 E, V' o0 R1 F$ y0 Y.MODEL Dp D(N=0.05)
1 B7 }- C9 [" d.MODEL MOSFET PMOS(VTO=0 KP=1.8E-3)
) F6 \( E; L! x! L7 g*VTO ESTABLISHES INPUT VOLT. RANGE , was -1.75 K3 F* Z$ x8 s/ I5 s2 e: F
**
1 S2 m/ m2 F2 @( N.ENDS
7 l* k: g! Z( [* R# b; V, B
) w: I' ~, h, x4 q8 V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
" |2 j2 Y% \7 @$ |; C3 u: G小弟初学模拟电路，请各位大侠指教啊。多谢# O# x! K3 g" l I
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发表于 2011-6-15 16:24
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支持！
反对！