PSOC ADC_SAR_SEQ input limitations

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Anonymous
Not applicable

I can connect a vref or a vdac output to an analog mux.  However, it appears that I can only connect a gpio pin to an ADC_SAR_Seg component.  The device is a 5lp.  

   

 

   

Am I doing something wrong or is this a limitation of the ADC_SAR_Seg component?

   

 

   

Thanks

   

 

   

Glenn Edgar

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1 Solution
Bob_Marlowe
Level 10
Level 10
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Page 1 of the datasheet states:

   

Note Only GPIOs can be connected to the channel inputs. The actual maximum number of input channels depends on the number of routable analog GPIOs available on a specific PSoC part and package.

   

 

   

Bob

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4 Replies
Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

Page 1 of the datasheet states:

   

Note Only GPIOs can be connected to the channel inputs. The actual maximum number of input channels depends on the number of routable analog GPIOs available on a specific PSoC part and package.

   

 

   

Bob

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Anonymous
Not applicable

Thanks

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Bob_Marlowe
Level 10
Level 10
First like given 50 questions asked 10 questions asked

You're welcome!

   

 

   

Bob

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I haven't understood this reason.

I want to make a new system design using "1 x ADC_SAR_Seq" and "4 x PGA".
"4 x PGA" inputs are for 4 external sensors.

But, Component Datasheet (ADC_SAR_Seq 2.10) says "Note - Only GPIOs can be connected to the channel inputs".
Anyone teach me this reason?

I'd like to connect PGAs outputs to ADCs inputs.


Best Regards,
Fumio Kubo

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