|
|
Silicided poly...silicon targe poly9 T/ i5 e% A8 u- Z# X0 P
unsilicided poly...unsilicon targe Poly
C7 @8 R- u o" V( i
0 k& }$ g3 H# i( Y+ X( ktc1 First-order temperature coefficient. (Default: resistor model parameter tc1r; 0 if no model is specified.)* K1 @7 z/ V' B3 }
tc2 Second-order temperature coefficient. (Default: resistor model parameter tc2r; 0 if no model is specified.)
3 L" M4 [- V' G; ]vc1 voltage across the first capacitor6 R& S/ A) b) J0 w
vc2 voltage across the second capacitor; i* z( d" t0 \( X
* L5 c" p0 |, H7 E; u0 D+ pA two-terminal resistor.
1 ?. G' ~& ?) E8 p W# z, nThe resistance R is influenced by the temperature as follows:/ M) v/ A9 C# r. Y5 M5 d) h
R = N (1 + AT + BT2) d3 I' @7 }. h9 F' @
T = Ta – Tn# o: C4 K4 S6 H' ~( F) t- f
where N, A, B are device parameters described below; Ta (the “ambient” temperature) is set by the# m& K1 c. p2 T
.temp command; and Tn (the “nominal” temperature)
: k$ r3 d6 a" R" S" d- t1 v+ T* x' N, j1 d$ _1 I$ Q
1 ^0 t7 x% v( m& U; `; c! X) R& H3 JThis produces a resistor of resistance 30 kilohms at the nominal temperature tnom. If the temperature T2 m5 L% z5 m) ?; {7 X4 A
is different from tnom, the resistance is 30,000*(1+0.01*(T-tnom)+0.0001*(T-tnom)*(T-tnom)). For
- T# F( n0 ^. p+ A. Wexample, if the circuit temperature is 127 degrees and tnom is 27 degrees, the resistance is* _9 X% B' I; Y, X: W4 A- e4 A
30,000*(1+0.01*100+0.0001*100*100) = 90,000 Ohms.: j; M% d; q1 p
, f- i7 t! q8 j. f5 F6 y[ 本帖最後由 m851055 於 2007-7-30 08:50 PM 編輯 ] |
評分
-
查看全部評分
|
[複製鏈接]
IP卡
狗仔卡
發表於 2007-7-30 17:48:24
QQ好友和群
QQ空間
騰訊微博
騰訊朋友
收藏
分享
頂
踩
分享
提升卡
置頂卡
沉默卡
喧囂卡
變色卡
搶沙發
千斤頂
顯身卡
樓主