Strictly necessary cookies are on by default and cannot be turned off. Functional, Performance and Tracking/targeting/sharing cookies can be turned on below based on your preferences (this banner will remain available for you to accept cookies). You may change your cookie settings by deleting cookies from your browser. Then this banner will appear again. You can learn more details about cookies HERE.
Strictly necessary (always on)
Functional, Performance and Tracking/targeting/sharing (default off)
OK
Help
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 

PSoC 5, 3 & 1 MCU

MuKa_284621
New Contributor
‎Jul 07, 2014 04:06 AM

Enable Vref/Vssa

 Hello,

   

 

   

Does the Enable Vref/Vssa option in the ADC's Common tab allow us to connect a variable reference in PSoC schematic (rather than allocating a special pin to acquire an external Vref?

Labels
0 Likes
Reply
2 Replies
ETRO_SSN583
Esteemed Contributor
‎Jul 07, 2014 05:26 AM

Re: Enable Vref/Vssa

I think this targets removing offset when an external reference, using

   

a pin, is selected. And I think datasheet accuracy is written around that

   

assumption. It might be possible to actually use pin as a variable reference,

   

I would file a CASE to ask if done that keeps datasheet accuracy or that

   

pin absolutely must be very close to ground level.

   

 

   

    

   

          

   

To create a technical case at Cypress -

   

 

   

www.cypress.com

   

“Support”

   

“Technical Support”

   

“Create a Case”

   

 

   

You have to be registered on Cypress web site first.

   

 

   

Regards, Dana.

   

   

 

   

0 Likes
Reply
ETRO_SSN583
Esteemed Contributor
‎Jul 07, 2014 05:28 AM

Re: Enable Vref/Vssa

The attached failed to post prior part of thread.

Preview file
188 KB
0 Likes
Reply