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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
4 t6 t+ p- K( h) d! Dvcc vdd! gnd! 2.5, m' Z0 e! T$ o4 u* R! a5 q
.option post
. B& v9 s" ?1 W, r) W* i.global vdd! gnd!+ H! t7 h% p$ g2 n+ k6 p: H1 m1 ]
****first stage " w' x5 Q) D1 L0 w3 _# @
mn1 2 vp 1 gnd! n l=0.7u w=10u m=703 Q1 Z3 H; Z$ D
mn2 3 vn 1 gnd! n l=0.7u w=10u m=70 V, m8 `( b+ N4 B. `. d& r5 W% [5 J
mp1 5 vp 7 7 p l=0.7u w=10u m=80
2 H9 t: o+ k& j5 Tmp2 6 vn 7 7 p l=0.7u w=10u m=80
' V5 h% Y5 |$ H/ o; r" a2 X$ Z* f9 B. s; c
m4 2 vpb1 vdd! vdd! p l=1u w=15u m=10
2 o, m8 @9 j) g9 Hm5 3 vpb1 vdd! vdd! p l=1u w=15u m=109 X1 ~- U6 L2 ]% V4 { I2 V6 k
m6 4 vpb2 2 vdd! p l=1u w=10u m=2
4 k- N- i" `; F1 Fm7 vo vpb2 3 vdd! p l=1u w=10u m=24 Z0 C! P: e; b" {" v) y; c, j
m8 4 vnb2 5 gnd! n l=1u w=10u m=4
7 f/ R' g, Q. |m9 vo vnb2 6 gnd! n l=1u w=10u m=4; T; h& g" f$ P3 l- W# ~# |
m10 5 4 gnd! gnd! n l=1u w=7u m=10
, ~+ N& Q R$ ]m11 6 4 gnd! gnd! n l=1u w=7u m=10
- `$ l& ^0 U, d* a$ T% q" y****bias 1 V' P% \+ \! f W! V. I
vnb2 vnb2 gnd! 1.3
! X) i6 Y; D' n+ f' Evpb1 vpb1 gnd! 1.6
. D) n! I6 R: E, j; uvpb2 vpb2 gnd! 0.6+ h2 g/ x; V$ {5 V
Iss1 1 gnd! 20u
4 ~) e& s: K+ p; pIss2 vdd! 7 20u
5 N9 G4 }; u2 Y: ` W' k- V0 N4 z' W+ I, e. |7 R' |
****load
& _" q- G4 a) y" c1 Fcl vo gnd! 1p' \ M# H8 q6 z' H3 ^. X0 A$ T
- B7 E. @+ N+ }9 [; ~& V {.dc vp 0 2.5 1m1 \ I/ F1 y/ C: h) m6 [
vp vp vp1 sin(0 1m 1k) ac 1
1 t* E c! x2 |, K% k; fvp1 vp1 gnd! 2 6 p/ E& ]) J* L4 T" `! G6 F) f
vn vn gnd! 2 " x+ s/ h( z& x
.tran 1n 20u
' t! {5 A) B0 T1 a+ v: l6 N/ J.ac dec 10 1 100g- E* l' ?2 W. F2 z: x- f
.pz v(vo) vp
1 A" M k/ r9 D- [.TF v(vo) vp
$ G# x4 h1 a/ d- s$ v) W4 S# X y.print ac ga=par('vdb(vo)-vdb(vp)')
' u* h! i) i7 Z2 q4 j+ i# Z- f.print ac pa=par('vp(vo)')* T6 O, J3 E: E3 K6 \6 ?
9 h: j' d0 n. A- U2 B& S
.op
, H& z% g) c1 i6 T, l& f.lib ' xx035v.l' tt6 ]# e& V3 ~9 Z3 e* S# u" T+ V9 G
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