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Posts: 19
Registered: ‎09-30-2014

Si1142

SI1142 is not working properly when the temperature drops from 40 degrees. I am taking proximity measurements every 500ms (Gain 3) and average it over 5 seconds. One of the ten readings saturates around 35 degree. The test was done in an environment chamber. Does it have any temperature compensation?

 

Thanks

 

Posts: 328
Registered: ‎09-22-2009

Re: Si1142

This does not sound like expected behavior. Do you have multiple boards that are displaying this problem? It could be a soldering issue. Perhaps the Si1142 was damaged slightly from too much heat- was it hand-soldered?

Posts: 19
Registered: ‎09-30-2014

Re: Si1142

Thanks for the reply. I have 3 boards 2 of them gives me that error. Yes they were hand-soldered.

Posts: 328
Registered: ‎09-22-2009

Re: Si1142

I believe this is just a soldering issue. I've tested numerous boards in temperature chambers and never had any issues.