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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
" m5 D# w+ I: d3 Z) ]* -------------------------$ w+ E0 Y& R) ?4 y( W4 l* q
* FEATURES:. F! T$ H6 J: M3 K. u; N4 V
* 300MHz -3dB Bandwidth
9 w/ p8 n9 l, h6 N% [( c( m* 600V/uS Slew Rate
! y$ m/ Q; ]) f* 5.5mA Typical Supply Current) g) \4 y0 G& z8 _2 g5 H m9 M7 U: I
* 120mA Typical Output Current/ R& t. U5 Q5 t# ]
* Rail-to-Rail Outputs* S# |8 G# t! B& `' u2 w/ n
* Available in 5-Pin SOT23-5 (MAX4212)
7 E/ S, q; M$ W2 @8 \*
; M; J; D; u6 o7 Q# q/ S$ I*. {# k- i9 k; o
* PART NUMBER DESCRIPTION
' E. `) _& Z' ^+ v1 q2 w0 M6 f7 l* ___________ _____________________________" z( l9 M6 w/ G9 n+ H
* MAX4212 300MHz, Rail-to-Rail Op Amps
1 R# }7 W* ]' ?2 M*+ W$ v) t# t7 ?
*+ |' Q p: v! G- \. o5 t
* ////////////// MAX4212 MACROMODEL //////////////////
* D. b( A! E" ?% T# E) P1 O*
* l1 S3 g" w3 A* ====> REFER TO MAX4212 DATA SHEET <====4 B9 b6 |8 F1 _* i, ?- d
*
1 |( {0 k5 D0 z3 g% k) X# A* connections: non-inverting input
- O7 P3 V. j \9 C# ^1 W4 P* | inverting input
: b. z) H! {" N* | | positive power supply
5 `, ~" n% j1 l6 S C0 ^/ c* | | | negative power supply" Z( i5 n7 W$ G8 O/ C
* | | | | output
; c( j+ p' z7 n1 U* | | | | |
$ m! u) v1 A D& n* R- g2 S7 R* | | | | |9 G, W5 c+ [# c' T v
* | | | | |
- Z; b$ f& g/ P6 d6 I ]- Z* OUTPUT CONNECTS: 1 2 99 50 974 |7 D* V3 J, q* q& B' f
*
/ E+ R2 ?% `3 H9 D*9 w1 y/ ^( E8 {9 H
.SUBCKT MAX4212 1 2 99 50 979 D7 \: X/ T& f2 ~% s9 {: B
****************INPUT STAGE**********************
; J2 O' Z3 H/ p4 `7 U1 f! G8 aI1 99 4 .5e-3' q& T! ^8 C: ]2 B" [
IBIASE 1 2 5.5ua
! v% A6 t1 j& UM1 5 2 4 99 MOSFET- z4 k) _2 j( f' {# y/ h0 `$ E
R3 5 50 2828+ R0 [# ^6 Z+ B+ E7 K) {1 b
M2 6 7 4 99 MOSFET
4 H# y$ R9 u8 a/ d* J3 B2 `; uR4 6 50 2828! t3 Y0 c/ R. E1 V5 z1 ^1 {
CI1 1 0 2P- o/ B4 b( [" d, z0 D* L3 N. N
CI2 2 0 2P( e+ ^$ d" h1 y& H$ x( k+ A
*DP1 1 99 DA
' D+ l0 R: @9 d2 j" |1 o# {# _*DP2 50 1 DA
0 K: p( K0 p! Q5 `% v& S*DP3 2 99 DB
" m0 }/ \% G% h( P; R. `*DP4 50 2 DB. g$ J: o2 ]& ~5 s r
************************' j' r0 h7 F1 k
************ GAIN, 1ST POLE, SLEW STAGE************% j; r3 P" I- h* N2 @' H
EH 99 98 99 50 0.5
9 |6 O9 \# c- a; ^& c( h3 I* PG0 98 9 5 6 7.87e-3
+ ~8 e/ X( `* i( x, tVB 9 10 0V ' z& p% }* e: [# ]7 _( R
R0 98 9 127E3! \! O. g0 N1 ]
C3 10 98 1.488e-110 ], Q6 j4 ?/ Y* Z, n! b
*C3 10 98 1.166e-11/ N; n( M3 }3 B# h7 u1 H* x# J9 r+ o9 t u
*** ***********4 X3 Z! m5 S' ~& C1 J
D1 9 111 DP
) L$ F0 o1 B) I% O6 eD2 112 9 DP
) Q! }8 s/ u# A* ~2 {, QV11 99 111 50MV+ @/ S# A$ `# h0 Q( z' z- [3 a
V12 112 50 50MV
- ~7 q: t2 K" i4 K$ k5 A************
' ]2 z* w, K8 F9 k9 jI2 99 50 5.1mA
; w- B3 _# k' \VOS 7 1 0v
1 X3 R% W6 f% g) p# e******** POLE STAGE **********
' ]! V7 N, Q/ w' @4 R6 iG3 98 15 10 98 1E-3* S- ]8 D8 t! t \% R, N4 u U
R12 98 15 1E3" q( @9 {, Z( n. v: W
***************************! q$ L r$ I/ f: Y! T8 n' {
*********** change for second pole
' g/ m- h+ c, N* x) P* w7 ~! WC5 98 15 .48p( `7 ~4 u' E( T
* ( f; D. h) }) s# N
*************OUTPUT STAGE****************
5 ^3 V6 V* k! a4 k' P0 ?% @ ZF5 99 38 VA8 1- o, Z p. S6 |7 y8 \7 V5 B
D9 40 38 DX& J+ ]8 Y( G4 [% t W: {# ]
D10 38 99 DX- U2 p5 ~9 O# Z& q! O8 M. |/ N1 u
VA7 99 40 0: v: E. @4 u& E2 B+ }. n! O5 O
G12 98 32 15 98 1E-3* a* Y# o1 R# y" M Q: z! h6 k+ f
* ^ INSERT NODE FROM LAST STAGE HERE7 C/ T4 E( Q5 v3 |. ~1 K
R15 98 32 1E3
) c1 m5 l! X7 Y*D3 32 36 Dx
4 f- B9 G5 R& c" H*D4 37 32 Dx8 l8 l1 p# y) R7 f& T
*V5 34 37 .3V
: S, E. Z# k# }/ O3 o*V4 36 34 -.3V
% ?1 X/ L6 f! @*** V5,V4 SET ISC# @$ p+ O. A7 o9 V9 B
R16 34 97 7.55- |' ~/ H- U1 F) Y# ` W
E1 99 33 99 32 1) }8 ~( B b6 V
VA8 33 34 0V
# |3 l, K- _/ {, u, k******************************************; D8 D( ?+ E1 [" k# [
.MODEL DA D(IS=100E-14 RS=.5K)
8 R* F' }7 D# b/ O! V.MODEL DB D(IS=100E-14 RS=.5K)# E, Z% T/ A" h+ H; P* w
.MODEL DX D(IS=100E-14)2 n6 ^; S8 Q4 I( ?& i8 P {: N
.MODEL Dp D(N=0.05)4 N9 s K# {# @* { _+ e0 ]( i
.MODEL MOSFET PMOS(VTO=0 KP=1.8E-3)
' P% k5 e7 v! i, X" v: v*VTO ESTABLISHES INPUT VOLT. RANGE , was -1.73 G; p# F& x1 u5 x" G
**
8 _9 o4 V; f* @+ F.ENDS
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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 n* C- ^4 ?. T5 M, i1 O& |小弟初学模拟电路,请各位大侠指教啊。多谢* a% T/ a' F! x
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