|
EDA365欢迎您!
您需要 登录 才可以下载或查看,没有帐号?注册
x
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
( A* N, ? c) [" }* -------------------------
, X. z# i1 [9 I- ~( R# x4 ?* FEATURES:1 P& R2 e1 u+ G& A3 ^' k4 j
* 300MHz -3dB Bandwidth4 u) u: [' A7 H5 N! l
* 600V/uS Slew Rate9 b5 P7 S9 D3 U* e. c e' i+ `3 `! E
* 5.5mA Typical Supply Current
4 Q, F* a8 w8 |5 A* 120mA Typical Output Current$ r% z4 F' L: y! ?
* Rail-to-Rail Outputs
8 r9 {# E( J) U2 m* Available in 5-Pin SOT23-5 (MAX4212)
& u- F% t' s4 m) e8 S5 L*+ x) C; v5 ~' @) P
*: |' D1 m* i0 D; k* s
* PART NUMBER DESCRIPTION
( P) L, s! q& t+ f, k( }* ___________ _____________________________
3 H$ g" K7 s6 d% P. N/ u) T* MAX4212 300MHz, Rail-to-Rail Op Amps
' Z: c2 k0 B, o6 x+ L3 R*4 M- X' @6 Z4 F7 K
*7 h, q8 p2 y8 z, e2 g+ o" s
* ////////////// MAX4212 MACROMODEL ////////////////// |5 B) U F7 X7 A+ Y
*+ \3 Q) ~" Y) v0 G# U
* ====> REFER TO MAX4212 DATA SHEET <====
1 j8 o! Q# ~3 F$ b p/ p*
. Y7 m7 R$ M: B# _/ o* connections: non-inverting input9 r9 [5 K+ r; N; h! H
* | inverting input
) b3 n2 c8 D# ~5 ^1 W- Z* | | positive power supply. _& o# s3 D/ A- A
* | | | negative power supply
/ n0 H% {5 H2 F# H! b" j: f5 s* | | | | output% ^; j$ V7 W1 u5 O$ f: }- O
* | | | | |
+ f/ ?: S% y( w6 H, H W+ j* | | | | |
# u% U& U$ W8 r- K$ s! r4 e+ b* | | | | |
7 z' V) z7 O! T* OUTPUT CONNECTS: 1 2 99 50 97- U# p) Y5 Z! |# C2 S/ l2 r, [" c
* p8 v0 i; [- t! B* y8 `+ F* K
*/ K% ~$ a4 ~5 R; I
.SUBCKT MAX4212 1 2 99 50 974 M8 H" O* j' w7 I, ~! s& x8 u
****************INPUT STAGE**********************" n: ]# v8 }3 u3 a1 N* O4 _
I1 99 4 .5e-3/ |8 j, L. H) L! f
IBIASE 1 2 5.5ua4 J0 B; q: F- l/ t
M1 5 2 4 99 MOSFET
! F7 E' T. B: T2 M* jR3 5 50 2828
! ~* G Z' s5 G' ~7 e5 u" GM2 6 7 4 99 MOSFET
4 s; R0 q5 B: X: v, S t1 E, ?4 |R4 6 50 2828% V! D5 Q) c$ E- I+ R+ A
CI1 1 0 2P
6 d0 Y# ?. X* s+ `CI2 2 0 2P- P) k E9 {9 L5 o6 i
*DP1 1 99 DA9 c8 P5 d$ S: Y8 J
*DP2 50 1 DA
) u8 b7 s% P2 n2 a9 ]*DP3 2 99 DB
[# T- m: _# E2 t6 O7 O5 m, O*DP4 50 2 DB" b0 [* }7 W. ^ c3 w1 p3 k
************************7 S5 v9 D9 z0 S- s
************ GAIN, 1ST POLE, SLEW STAGE************7 |$ c1 I. @0 d2 F% S* y i, r
EH 99 98 99 50 0.5/ G; F: l t9 V$ e; V
G0 98 9 5 6 7.87e-3; ~- V( j! Q* L' M2 ^ p6 O7 W
VB 9 10 0V ! H: T4 v* @ \5 m
R0 98 9 127E32 W# o+ m, T( Y8 k7 D
C3 10 98 1.488e-114 u* a2 L I+ c) y2 | f
*C3 10 98 1.166e-11% x1 v( s; j2 ]2 T; W6 }; O
*** ***********8 ?! z# {' i0 \6 X9 ]4 p/ D$ t
D1 9 111 DP t- R4 h$ Z [9 U. L5 C
D2 112 9 DP
, k5 C9 i* N4 F$ a. s1 VV11 99 111 50MV# {+ V! l% { C3 m1 B L/ N2 S
V12 112 50 50MV1 V! x* W4 t, C
************
) k/ i6 f$ c' G) N7 SI2 99 50 5.1mA
5 v% Y! n* L. [9 q4 B1 FVOS 7 1 0v
; t% k- K$ {" i; A******** POLE STAGE **********9 V$ _. \0 L0 c6 q
G3 98 15 10 98 1E-3
, Z# r C* r' y D6 m, g0 s, [R12 98 15 1E3
. `/ U5 x) n5 Q; ^9 p4 f1 f9 E7 N9 _***************************
D4 @ w9 j7 s! y*********** change for second pole
" d8 m. Y4 g$ D/ _6 I; K4 U% G% Q8 }C5 98 15 .48p
8 S( O0 {- ~8 a5 h*
' X6 h [7 Q% R' l' g& p, [4 z*************OUTPUT STAGE****************# R. n \% w- k$ Y" n7 K' v8 q
F5 99 38 VA8 1$ |9 Y2 \1 C+ i
D9 40 38 DX
; d) R: b, L$ D+ {9 CD10 38 99 DX0 ~' ]3 X9 D% ~0 I
VA7 99 40 0' R9 O4 l; B4 o% \! Z2 o* G
G12 98 32 15 98 1E-3( o/ O- \: J3 X( b, _3 z
* ^ INSERT NODE FROM LAST STAGE HERE; ?" q0 W3 }* H- f
R15 98 32 1E35 E7 l0 r: ^' S
*D3 32 36 Dx
2 M: h$ }' W" p2 P*D4 37 32 Dx
* A4 f' B, r; z, V7 ]" i*V5 34 37 .3V! p/ R" | w+ g E
*V4 36 34 -.3V5 @: R8 k, Z1 n8 S! M: P( ?1 n$ I% ?& I
*** V5,V4 SET ISC7 Y4 ~0 j! @, O# j- g
R16 34 97 7.55
7 d6 ]* g6 t$ M1 j3 CE1 99 33 99 32 1: _) x; f1 s* Q$ r- x; c& v, \; h
VA8 33 34 0V
, X& T8 W5 W5 q( Y" M******************************************( g6 F; J: o. p8 j" [% n
.MODEL DA D(IS=100E-14 RS=.5K)
8 G8 l4 H# C4 E8 r0 g. L8 {.MODEL DB D(IS=100E-14 RS=.5K), U0 e p& v3 |0 P
.MODEL DX D(IS=100E-14)
7 x, k4 H( }% i I n, P) o.MODEL Dp D(N=0.05)
) h5 A$ q8 ^$ n) `' F! `/ {% \6 Q) ?.MODEL MOSFET PMOS(VTO=0 KP=1.8E-3)* J& o! u; g# W
*VTO ESTABLISHES INPUT VOLT. RANGE , was -1.7! Q. [# J5 c& v$ D4 a6 w- C
**
" J6 y4 ]1 J" e1 S9 P9 _* o.ENDS% i- N9 K! b9 ^0 V) R8 U$ U
7 y" |( \2 c5 z: b! f: S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3 M) u3 p6 T2 m: o6 K
小弟初学模拟电路,请各位大侠指教啊。多谢+ {/ f2 q4 b4 e% A4 W# `
|
|