Anonymous
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May 25, 2015
06:46 PM
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May 25, 2015
06:46 PM
BCM20737S allows us to use ADC w/o external reference input.
In that case, internal 1.2V LDO is used as ADC reference.
What is the accuracy of the internal reference?
I'd like to measure absolute voltage with high resolution.
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Jun 03, 2015
02:54 PM
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Jun 03, 2015
02:54 PM
3 Replies
Anonymous
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May 26, 2015
10:21 AM
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May 26, 2015
10:21 AM
Hello Daisuke,
Did the post here answer your question: BCM20737S - ADC Noise-free resolution
Thanks,
JT
May 27, 2015
07:52 AM
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May 27, 2015
07:52 AM
Thank you for your comment, j.t.
Do you mean +/- 2% is the accuracy of internal 1.2V reference?
20737-DS100-R says LDO output voltage has +/- 5% accuracy.
So I'd like to make sure what is used as ADC internal reference.
Jun 03, 2015
02:54 PM
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Jun 03, 2015
02:54 PM
Hello Daisuke,
1.2V internal reference has +/- 5% accuracy.
Thanks
JT