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Silicided poly...silicon targe poly
) N8 f" I9 P' D3 z" L& ounsilicided poly...unsilicon targe Poly
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4 g% Y' x7 ~5 ttc1 First-order temperature coefficient. (Default: resistor model parameter tc1r; 0 if no model is specified.)6 e9 X$ _6 a3 o; P9 B2 H+ b# g) ^
tc2 Second-order temperature coefficient. (Default: resistor model parameter tc2r; 0 if no model is specified.)5 F/ o, i. n$ Q* s
vc1 voltage across the first capacitor9 [0 _. M( |, b
vc2 voltage across the second capacitor+ W* I/ d7 j/ B+ X2 r, N
* e ~. G6 ]- R" I" dA two-terminal resistor.
5 O$ ^) {! H+ LThe resistance R is influenced by the temperature as follows:
' ^% y& m3 m( ^4 J2 Q. ~# \4 QR = N (1 + AT + BT2)
0 W1 v0 ~( B# R6 x% vT = Ta – Tn
; F( W1 _9 l, m v( y* Uwhere N, A, B are device parameters described below; Ta (the “ambient” temperature) is set by the' y S& ?4 e0 V8 I7 L1 F
.temp command; and Tn (the “nominal” temperature)( r2 T8 O# I# r+ ?' A2 _3 k" l
. C9 Z, w+ T F+ L" s; G8 w. P! L1 f
This produces a resistor of resistance 30 kilohms at the nominal temperature tnom. If the temperature T
8 Q* e: w6 w& y; w% qis different from tnom, the resistance is 30,000*(1+0.01*(T-tnom)+0.0001*(T-tnom)*(T-tnom)). For
1 t, [& g: w8 q+ v7 D; Lexample, if the circuit temperature is 127 degrees and tnom is 27 degrees, the resistance is
( s& u" C4 P3 D7 ^4 L" K30,000*(1+0.01*100+0.0001*100*100) = 90,000 Ohms.
; ^. X, m* B7 m# w7 _7 @+ P0 v* F9 u, g5 O& C
[ 本帖最後由 m851055 於 2007-7-30 08:50 PM 編輯 ] |
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