The measured results got large error

Thread Starter

LAOADAM

Joined Nov 21, 2018
628
hi,
Have you used exactly the same component values and tolerances and also the Vref voltage.?

Do you have a photo shot to post.?
E
Thanks.
I used just the parts I have, but all right parts number as the picture.
L knew there are large error on the components, just wonder if this is the only reason.
the Vref voltage I measured is 2.1V.

ppp1.jpg
 
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