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Silicided poly...silicon targe poly
' O& T: B& Z: O$ K* z2 dunsilicided poly...unsilicon targe Poly& @3 A. c' j/ O! X7 V) S9 W" c
( I! N9 T3 T; T& Otc1 First-order temperature coefficient. (Default: resistor model parameter tc1r; 0 if no model is specified.)" D6 p0 i0 G7 ?" k7 ~4 X
tc2 Second-order temperature coefficient. (Default: resistor model parameter tc2r; 0 if no model is specified.)0 y- P8 ?2 |- h3 P. H- Y
vc1 voltage across the first capacitor
6 p. K% t7 W% v- B4 a" r; Rvc2 voltage across the second capacitor. @! ^/ q0 S% b1 {( s
' M% M, v& |( \; o: E
A two-terminal resistor.
, Z8 y! H; r3 J* vThe resistance R is influenced by the temperature as follows:. ?+ s b# v- Z+ {6 L
R = N (1 + AT + BT2)
- T: q$ ]) E# G7 X* OT = Ta – Tn
' l/ a1 ^: k) K* |! M5 Rwhere N, A, B are device parameters described below; Ta (the “ambient” temperature) is set by the% ]$ d3 n X$ [ i7 ]4 K
.temp command; and Tn (the “nominal” temperature)
, b: {8 d* ]% p% L4 a/ p6 P; f6 d
6 p5 {% h" r6 e1 m f5 I2 M6 X; G4 X, H& J% k/ |
This produces a resistor of resistance 30 kilohms at the nominal temperature tnom. If the temperature T
$ g7 X+ [( X+ L" M3 y# |! @is different from tnom, the resistance is 30,000*(1+0.01*(T-tnom)+0.0001*(T-tnom)*(T-tnom)). For
$ N, `: x' F2 _) t% @3 bexample, if the circuit temperature is 127 degrees and tnom is 27 degrees, the resistance is
, J8 Q% A: q. U$ y; X) m30,000*(1+0.01*100+0.0001*100*100) = 90,000 Ohms.( s! H' C z8 X
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[ 本帖最後由 m851055 於 2007-7-30 08:50 PM 編輯 ] |
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