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WICED Smart Bluetooth

Anonymous
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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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1 Solution
Anonymous
Not applicable

Hello Daisuke,

1.2V internal reference has +/- 5% accuracy.

Thanks

JT

View solution in original post

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3 Replies
Anonymous
Not applicable

Hello Daisuke,

Did the post here answer your question: BCM20737S - ADC Noise-free resolution

Thanks,

JT

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Anonymous
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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.

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Anonymous
Not applicable

Hello Daisuke,

1.2V internal reference has +/- 5% accuracy.

Thanks

JT

View solution in original post

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