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Having doubt in layout@CN0326: Isolated Low Power pH Monitor with Temperature Compensation

Question asked by sonyw on Jan 4, 2015
Latest reply on May 3, 2016 by erbe

CN0326: Isolated Low Power pH Monitor with Temperature Compensation

Dear Sir,

 

We are excited to see pH monitor with Temperature compensation application CN0326  and would like to know more on this as below

1)In layout provided by analog devices,why track is going circular for ic U1 betwwen pin no 1 and 4.please explain this.

2) And if PCB manufacturer is not providing track width of same.What I can do in that case?

I am attaching photo of my point of doubt for understanding.

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