|
Silicided poly...silicon targe poly
8 z8 a, y: |0 R2 z' U: nunsilicided poly...unsilicon targe Poly
; o1 ]2 C* j5 I% v7 H5 R/ f& ~5 }( T2 V% _6 B$ D
tc1 First-order temperature coefficient. (Default: resistor model parameter tc1r; 0 if no model is specified.)/ p$ L& N" L0 @* D
tc2 Second-order temperature coefficient. (Default: resistor model parameter tc2r; 0 if no model is specified.)
2 ~/ z+ _9 j5 h* Y* T8 jvc1 voltage across the first capacitor
; T) l) W4 f, y# {8 Hvc2 voltage across the second capacitor
6 m# [3 H3 n9 r. j; f3 b+ J- @% a1 j
A two-terminal resistor.
- D# _2 K7 O% F! W" i! v4 hThe resistance R is influenced by the temperature as follows:0 Z$ i9 {; Q3 D; N5 O0 y" [) e
R = N (1 + AT + BT2)" B$ X3 k+ p# d, v1 ?% a
T = Ta – Tn
& _. s# R P l4 H0 h, d k mwhere N, A, B are device parameters described below; Ta (the “ambient” temperature) is set by the, c1 c" U) x7 f
.temp command; and Tn (the “nominal” temperature)9 A4 Y9 ` P4 P2 | [4 n
! j; Z# a- E' y o. a7 t! f; y. x
& N2 o9 M6 }, u' q J) v
This produces a resistor of resistance 30 kilohms at the nominal temperature tnom. If the temperature T
6 ]- Y, `$ {0 U2 u/ h! {is different from tnom, the resistance is 30,000*(1+0.01*(T-tnom)+0.0001*(T-tnom)*(T-tnom)). For; e# U- I8 w4 h. d6 N" O1 `/ q( `
example, if the circuit temperature is 127 degrees and tnom is 27 degrees, the resistance is) k& O, ~1 W3 z2 K
30,000*(1+0.01*100+0.0001*100*100) = 90,000 Ohms.
0 ~; |2 I9 L+ N& J: I4 Z5 c9 K
" p0 F# h3 ~ y8 J" n[ 本帖最後由 m851055 於 2007-7-30 08:50 PM 編輯 ] |
評分
-
查看全部評分
|