VSSA to Pin

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Anonymous
Not applicable

It is possible to route VSSA to a pin. Creator doesn't complain.

   

Picture is in the attachment.

   

But when I am connecting it with a load, it breaks down!

   

VSSA is suddenly at  around -200 mV under GND!

   

Why?

   

Do I have to use a special pin and not the high impedance analog?

   

Or do I have to use an Opamp as follower?

   

 

   

regards willi

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Anonymous
Not applicable
        Hi Der_Willi   
Tell me why connect the load to the VSSA?   
I can't quite understand what you want to do.   
As you know, VSSA must be connect to the Ground.   
Please, do not be made to mention   
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Anonymous
Not applicable

I want to bring out analog GND of PSoC to a sensor!

   

I heard that GND on PCB and in PSoC are a bit different.

   

Or am I wrong?

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ETRO_SSN583
Level 9
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From the datasheet -

   

 

   

Note The Vref component is not intended to source or sink current. It has low drive strength. If
high drive strength is needed, buffer the Vref with an Opamp or PGA component.

   

 

   

Regards, Dana.

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ETRO_SSN583
Level 9
Level 9
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Vssa is pinned out on the package.

   

 

   

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ETRO_SSN583
Level 9
Level 9
250 likes received 100 sign-ins 5 likes given

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