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Silicided poly...silicon targe poly
B+ v( j- Q; Xunsilicided poly...unsilicon targe Poly
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! @+ X: |/ @! h4 r9 ktc1 First-order temperature coefficient. (Default: resistor model parameter tc1r; 0 if no model is specified.)
, {) x% ] @+ E8 gtc2 Second-order temperature coefficient. (Default: resistor model parameter tc2r; 0 if no model is specified.); B4 F' }/ C+ l; e. u6 A4 S/ z: T
vc1 voltage across the first capacitor! v* q. X. c" H" G4 {) E
vc2 voltage across the second capacitor
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9 z' U( E. ?( y- \3 zA two-terminal resistor.
+ k( C" Q1 @" P* QThe resistance R is influenced by the temperature as follows:6 ^# r8 e$ m' N% _. }5 C+ r+ L
R = N (1 + AT + BT2): k% U* a- t/ j; S
T = Ta – Tn* ]0 |) J7 ?2 w
where N, A, B are device parameters described below; Ta (the “ambient” temperature) is set by the
/ Z- ^* r* z; p2 E3 \4 c+ ?.temp command; and Tn (the “nominal” temperature)
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/ R; h) k$ g; H* H- e6 G4 }! e# t: n4 Q+ @( r* @+ [
This produces a resistor of resistance 30 kilohms at the nominal temperature tnom. If the temperature T/ T- R+ p. v# y+ z: @
is different from tnom, the resistance is 30,000*(1+0.01*(T-tnom)+0.0001*(T-tnom)*(T-tnom)). For
' O$ `9 C- T+ i; Qexample, if the circuit temperature is 127 degrees and tnom is 27 degrees, the resistance is0 @) j) a; g, ]: C! I! f3 X
30,000*(1+0.01*100+0.0001*100*100) = 90,000 Ohms.
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[ 本帖最後由 m851055 於 2007-7-30 08:50 PM 編輯 ] |
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