What is the ADC absolute error of LPC54608J512?

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What is the ADC absolute error of LPC54608J512?

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Frank12345
Contributor I

What is the ADC absolute error of LPC54608J512? like LPC185x

Thanks

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ZhangJennie
NXP TechSupport
NXP TechSupport

By checking, For this part, Please use Eadj as absolute error , after gain and offset calibration(which is done in SDK ADC init function)

 

Have a nice day,

Jun Zhang

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ZhangJennie
NXP TechSupport
NXP TechSupport

Hi

LPC546xx doesn't define ADC absolute error. Only Ed, El and Eo are tested.

If this data is necessary to you, please send me 

1. why this data is necessary to you?

2. your project name?

You can send these information with  community message to myself. if you don't want share it to public. thus I can check it internally.

ZhangJennie_0-1610947362400.png

Thanks,

Jun Zhang

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Frank12345
Contributor I

Hi Jun:

 

 The absolute error should be the sum of the offset, gain, and integral non-linearity errors.

We need it to calculate the error rate of the ADC itself.

The project name is V8.

 

Thanks, Frank

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ZhangJennie
NXP TechSupport
NXP TechSupport

We can't know what V8 is.

Please let me know the scenarios of your application usage. thanks.

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Frank12345
Contributor I

Our system provide a reference voltage to the external thermistor and then coonect to MCU ADC0INx.

Thanks.

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ZhangJennie
NXP TechSupport
NXP TechSupport

The application name can be, for example, "cash machine", "printer", "Traffic Control Light", etc.

What's yours application name?

 

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Frank12345
Contributor I

Around View Monitor.

Thanks

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ZhangJennie
NXP TechSupport
NXP TechSupport

Got it. 

I will check and keep you informed.

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2,753 次查看
ZhangJennie
NXP TechSupport
NXP TechSupport

By checking, For this part, Please use Eadj as absolute error , after gain and offset calibration(which is done in SDK ADC init function)

 

Have a nice day,

Jun Zhang

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2,750 次查看
Frank12345
Contributor I

Got it, thanks.

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