Patrik Bjorklund

ICS factory calibration accuracy (QD4)

Discussion created by Patrik Bjorklund on Nov 21, 2010
Latest reply on Nov 26, 2010 by bigmac

Hi everyone!

 

If one would want to use the factory calibration/trim value, what kind of accuracy could someone except to get?

 

In the datasheet it says that the total deviation is +/- 2% over the full voltage and temperature ranges.

This is of course for a trimmed ICS. But does it include Freescale's factory trim values? Or is the deviation bigger with those values? The data sheet does not say. It only says that the "Fine trim value" should not be read. I assume that is because the accuracy from the Freescale factory is not high enough.

 

I know that programmers can do the trimming when programming the chip, but let's not talk about that. Please keep the discussion to the Freescale factory trim values.

 

I appreciate all answers! :smileyhappy:

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