|
Silicided poly...silicon targe poly
2 p, G( m0 G+ P; s* ^unsilicided poly...unsilicon targe Poly
' L1 F# l7 Z: v0 i6 D) x' F) r8 b, u0 o( M7 M# _' q
tc1 First-order temperature coefficient. (Default: resistor model parameter tc1r; 0 if no model is specified.)
+ A& y5 |) f; h4 j0 ntc2 Second-order temperature coefficient. (Default: resistor model parameter tc2r; 0 if no model is specified.)4 Y% @" N( |) @/ h2 F
vc1 voltage across the first capacitor
; x% `$ S% W _vc2 voltage across the second capacitor, q6 C! u8 g% W) {
x% Y3 X: O4 l: }. `* b8 n
A two-terminal resistor., z! w4 M$ U5 i2 r
The resistance R is influenced by the temperature as follows: X. v' a* c9 d; w5 J& @
R = N (1 + AT + BT2)! O( x: l. P6 C- A6 h1 z
T = Ta – Tn# W: y+ M- J A w$ h2 x' }. u
where N, A, B are device parameters described below; Ta (the “ambient” temperature) is set by the4 N- L2 l* b& ^6 W3 b6 t) U5 S
.temp command; and Tn (the “nominal” temperature)
7 I+ C5 `* A3 I) F5 X6 |$ E9 i( q8 S0 J' Q
" u: v% Y/ X3 l0 TThis produces a resistor of resistance 30 kilohms at the nominal temperature tnom. If the temperature T5 C5 C7 j! C; E' Q5 q/ P
is different from tnom, the resistance is 30,000*(1+0.01*(T-tnom)+0.0001*(T-tnom)*(T-tnom)). For
/ E2 V9 k4 e) r1 v/ T- s% }! eexample, if the circuit temperature is 127 degrees and tnom is 27 degrees, the resistance is% e. f) p! l& d3 M1 C
30,000*(1+0.01*100+0.0001*100*100) = 90,000 Ohms.
; Y1 M/ A) q Q( K( c; ^5 ^. e
) g+ U: R; y8 j: ~1 [' N[ 本帖最後由 m851055 於 2007-7-30 08:50 PM 編輯 ] |
評分
-
查看全部評分
|