) N l: ~+ ~; v7 U" }+ n ( i6 b" r, l" ^5 Y 1 w3 x' Y! Q) e0 u. c( N m$ T' g8 X% B% f- ^
[ 本帖最後由 sjhor 於 2009-3-17 06:38 PM 編輯 ]作者: wuwen 時間: 2007-10-30 02:13 PM 標題: On chip 10 Ohm Resistor Before we look for trimming, let us review the following:- g" t0 w% U$ B5 d* Q
1. What is the technology used here ( B* p) I3 [( V0 A2. What type of resistors you have* E! d/ Z, ?! j' g+ t. q8 }
3. What is the sheet resistance/ area+ t* `+ [) E: b/ _: |- m, V$ {
4. What are the fluctuation of these resistances over corners and temperature 5 l0 E: R0 w* U4 j' l6 P5. How much area you have# }) }3 b1 v. r, I4 c8 N) W/ }
, L: E" t. i/ E5 M5 RNot quite sure one would have a pragmatic solution here. % z8 z) b0 E' g+ ^; U% B8 g; ?& g4 G0 ?+ o
Hopefully these help.作者: stanley547 時間: 2011-6-29 11:54 PM
感謝大大分享 努力學習中作者: staric 時間: 2011-7-2 12:10 AM
好难呀。。。。。。。。。。。。。作者: AIC6632 時間: 2015-10-30 09:16 PM
這要TRIM到這個精準度+ r+ ~% x& H& h3 F- Q5 T: M
還真的很難耶