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你好請問版主知道rail to rail input stage fold casecode op UNITY-GAIN BANDWIDTH 200MHz 是否可行 Vdd=2.5v 我使用Razavi *rail to rail input fold casecode # L) u% h! u S! c, n; M
vcc vdd! gnd! 2.5. g# y/ ` t7 I# S1 L! t, }
.option post
/ C+ `1 e4 i: a8 A( \) L* u; {.global vdd! gnd!" d$ O9 k2 D& P% y
****first stage 9 K; T+ ]% M' a1 a$ x; V
mn1 2 vp 1 gnd! n l=0.7u w=10u m=70
B9 ?% t J$ t1 H" O1 Pmn2 3 vn 1 gnd! n l=0.7u w=10u m=70
: S2 i" _ S0 J( [mp1 5 vp 7 7 p l=0.7u w=10u m=80
+ C! G9 E' g% `" ~7 bmp2 6 vn 7 7 p l=0.7u w=10u m=80
# q( `, B' b9 C5 V4 F& U& \7 n# }% c; O& l5 B, R
m4 2 vpb1 vdd! vdd! p l=1u w=15u m=10
0 Q j- z! ]* O* q2 z( om5 3 vpb1 vdd! vdd! p l=1u w=15u m=10; [$ v6 I/ t. b' ^3 [" J6 \
m6 4 vpb2 2 vdd! p l=1u w=10u m=2
% d3 o7 a/ c* `# B) D1 @m7 vo vpb2 3 vdd! p l=1u w=10u m=2# G5 a8 j4 w9 e7 p( F
m8 4 vnb2 5 gnd! n l=1u w=10u m=4
' J4 V0 K2 K: rm9 vo vnb2 6 gnd! n l=1u w=10u m=47 ?! x# z' _5 r. D: T& ?7 p
m10 5 4 gnd! gnd! n l=1u w=7u m=10
; [* |6 x7 f/ E( Fm11 6 4 gnd! gnd! n l=1u w=7u m=10
. g+ j0 A5 K3 @( Q# l****bias
. q. m9 j$ L' v) O9 mvnb2 vnb2 gnd! 1.3
6 Z! j& R7 \0 H$ M: ?vpb1 vpb1 gnd! 1.6
! p4 }; L$ [. e% G% H* Uvpb2 vpb2 gnd! 0.6
' \% H% P$ V: z& [/ cIss1 1 gnd! 20u A: O0 Q) l( w. b8 m2 W% d& y2 x
Iss2 vdd! 7 20u U# d% [5 E( w7 \' U
. Z4 O U ~9 E" @' j. `# I****load7 }: A+ y8 i" u* u5 E
cl vo gnd! 1p3 m2 X v4 y: @0 K+ u& `0 g* {: t' h
" A5 N4 i/ t1 ^. U
.dc vp 0 2.5 1m
" W: Z- f. V2 v) ]vp vp vp1 sin(0 1m 1k) ac 10 A" V3 S1 W/ K2 c+ H
vp1 vp1 gnd! 2
1 K; A6 l7 z t# `, m: l" B& `& U9 uvn vn gnd! 2
5 \5 T) U7 _! E* F ]7 ~7 z.tran 1n 20u
$ q6 t/ d$ z* |* U8 p ].ac dec 10 1 100g. \* _: P7 W) D: N; v
.pz v(vo) vp ; W% Q! l! G* R7 d
.TF v(vo) vp& j5 a2 }; @3 S2 w/ V0 p
.print ac ga=par('vdb(vo)-vdb(vp)')+ L3 E0 D; C0 u
.print ac pa=par('vp(vo)')0 J5 o* m2 t% d# m' Z
" L/ G, ^. ~" ^+ ^
.op
, L5 e: P6 b+ F: e Z* W; d% o' q.lib ' xx035v.l' tt/ B- s) b" C6 K) Z7 p
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