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小弟設計了一個.35製程的OPA,其SP檔撰寫如下:5 u* M& x/ v% a. D* f
+ D5 V7 C i7 z; o*****************Two-Stage Amp********************
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{8 E1 o7 i/ b- |- W.global vdd gnd ( W# a3 Q2 u; i/ P9 H: S
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Vdd vdd 0 3.3v
2 i# n; F: ?1 IVGnd gnd 0 0v* ?5 q! n1 O6 _, ~0 U3 H6 A
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* ~0 A" P9 w+ P w.subckt opa vinp vinn vout ' S5 W% C) F+ e C4 C2 N
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vvbp vbp 0 1.2 ]7 X+ g' n3 M7 P( a! S
vvbn vbn 0 10 |% E' s: \( ]9 s/ ~' E& T
+ J+ s/ ^- D1 m. @4 j- r @! [+ ~CL vout 0 2p
( g4 T9 }( F4 cCC vout nod6 4p
. v1 ]* L- \" E4 b: k# sR1 nod6 nod3 5003.79
/ {3 F# t- k7 _0 b; F: aIref vdd nod5 dc 20uA0 r5 U& W2 q7 c' _1 }4 @: }
2 S5 }2 Q) `" xMp1 vdd nod1 nod1 vdd pch w=10u l=1u m=2
! Z. a! I* P3 C Y! G+ EMp2 vdd nod1 nod3 vdd pch w=10u l=1u m=29 E9 s: ^4 ]3 S7 |% B
Mp3 nod7 nod3 vout vdd pch w=10u l=1u m=237 C2 ~6 ^; b; M m
Mp4 vdd vbp nod7 vdd pch w=10u l=1u m=22
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l4 S4 q* U7 v& WMn1 nod1 vinn nod4 gnd nch w=10u l=1u m=1
% [9 o% y" `" `. K2 O: |+ cMn2 nod3 vinp nod4 gnd nch w=10u l=1u m=1
" b0 ^: `( A5 bMn3 nod5 nod5 gnd gnd nch w=10u l=1u m=1
" h! y9 X& U. R! f3 _# QMn4 nod4 nod5 gnd gnd nch w=10u l=1u m=1
/ t& O4 `1 D7 T) [! B X* |Mn5 nod8 nod5 gnd gnd nch w=10u l=1u m=6
, [9 n. T! Q& P6 ^Mn6 vout vbn nod8 gnd nch w=10u l=1u m=6 ' ?5 d* y4 J/ e
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xopa vinp vinn vout opa
( c( x. w4 s+ g: b! k***********gain************
5 h4 ?. n( M. mvinn vinn 0 dc 1v ac 0v & J+ {+ D% a' {! p% n- |
vinp vinp 0 dc 1v ac 1v
; o2 Y$ r1 K! V1 ], d***************************- S1 h6 I' }! i3 L+ ?# l M
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.ac dec 10 10 5000MEG
" U7 E. ?. ]" K6 x.print vdb(vout)) o, B+ Z1 e0 V; x% p5 T+ M5 |7 N
.op
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2 o7 ^) n4 V7 ]; N: T.protect
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.unprotect! i- ?! [$ S o/ J
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.end
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請問將此SP檔改成.18製程有什麼注意事項嗎?- @2 v9 J" q* T3 u1 u
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另外將工作電壓調降至1.8V之後,其他的輸入訊號以及偏壓是否也需要更動?
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希望板上的各位高手可以為小弟解答,謝謝! |
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