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[問題求助] Current Sensing Resistor Trimming!!

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發表於 2007-10-30 14:13:38 | 顯示全部樓層

On chip 10 Ohm Resistor

Before we look for trimming, let us review the following:# o$ t" j& F. C; A
1. What is the technology used here
7 V; N: M" T- l" G- J+ d# K2. What type of resistors you have
. D1 Q7 X+ }1 h) W+ I2 l6 U7 t" x3. What is the sheet resistance/ area) Y* w0 `* s# N8 t; C# N9 x
4. What are the fluctuation of these resistances over corners and temperature% V: D+ d& \% ?; a* B/ E' e. @
5. How much area you have1 S: {8 {: w2 ~" E* \  W6 U

$ K8 `% ~( }9 f7 e7 uNot quite sure one would have a pragmatic solution here.
# H& q4 G/ O9 j$ X4 ?4 E& {, Y3 d6 \/ e* s; p$ v3 C
Hopefully these help.

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