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Silicided poly...silicon targe poly
: w& V {7 W: E+ yunsilicided poly...unsilicon targe Poly# [9 R4 J4 q! X3 I4 ]
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tc1 First-order temperature coefficient. (Default: resistor model parameter tc1r; 0 if no model is specified.)
4 c" d: j/ {6 Z" @6 ltc2 Second-order temperature coefficient. (Default: resistor model parameter tc2r; 0 if no model is specified.)
/ o# ^; w7 x3 ^' Nvc1 voltage across the first capacitor
# H6 I: C* \. T% E( a1 Cvc2 voltage across the second capacitor" J2 Q9 u. Q# ]3 C6 S& p- ^: w
1 B0 ?2 S$ u3 h- a0 N2 _; z- D0 aA two-terminal resistor.
$ ]( H* q8 W7 P* nThe resistance R is influenced by the temperature as follows:, ~6 U8 U& z- n. A% x# X5 v( X5 j
R = N (1 + AT + BT2)" d4 _* J. L N4 c5 _$ V
T = Ta – Tn F% V7 c5 |( ]. J+ d2 D
where N, A, B are device parameters described below; Ta (the “ambient” temperature) is set by the! X0 G9 Z6 X3 R2 f+ A2 V
.temp command; and Tn (the “nominal” temperature)# X# F4 F0 S9 _% S) j! V# l2 T
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9 \7 d/ z. O. y0 w3 [: s, a; O! w
This produces a resistor of resistance 30 kilohms at the nominal temperature tnom. If the temperature T
8 _; ]3 k1 F o; i+ ois different from tnom, the resistance is 30,000*(1+0.01*(T-tnom)+0.0001*(T-tnom)*(T-tnom)). For6 a# A" ]8 T) J; b/ | A
example, if the circuit temperature is 127 degrees and tnom is 27 degrees, the resistance is" c3 u2 v; y3 A. ~% h3 e8 p1 O# Q* m
30,000*(1+0.01*100+0.0001*100*100) = 90,000 Ohms.' }3 W( B, T& J8 E
2 W0 C5 X+ v5 \0 b: s6 U[ 本帖最後由 m851055 於 2007-7-30 08:50 PM 編輯 ] |
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