ADC Question?

goyoko · Guest

Hello. I have a doubt about CAD. How many it can be value between two reference (RA2 and RA3). IT coud be 5mV or it can be larger.?

Thanks for your post
CPB.
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Sherpa Doug · Guest

:=Hello. I have a doubt about CAD. How many it can be value between two reference (RA2 and RA3). IT coud be 5mV or it can be larger.?
:=
:=Thanks for your post
:=CPB.

Your question is not clear. What chip are you referring to? I am not familliar with "CAD" referring to PICs.

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argosy · Joined: 07 Sep 2003 Posts: 5 Location: Scotland

:=Hello. I have a doubt about CAD. How many it can be value between two reference (RA2 and RA3). IT coud be 5mV or it can be larger.?
:=
:=Thanks for your post
:=CPB.
On the Pic16F87x the referance voltage limits are for
Vref+ Max AVDD +0.3V Min AVDD -2.5V
Vref- Max Vref+ -2.0V Min AVSS -0.3V
This would appear to indicate that the minimum difference between Vref+ and Vref- is 2.0V
Argosy
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