What is the effective no. of bits in 12 bit ADC present in K20 uc?

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What is the effective no. of bits in 12 bit ADC present in K20 uc?

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Amit_Kumar1
Senior Contributor II

Hi

I wanted to know what is the effective no. of bits with and without noise in 12 bit and 14 bit ADC present in k20 uc? and is there any document which states these values for kinetis ucs so that I can select the desired uc according to the appliation requirements.

Thanks & Regards

Amit Kumar

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Paul_Tian
NXP Employee
NXP Employee

Hi, Amit Kumar

You can find the effective bit nunber in datasheet. ENOB is the parameter you need. You can search it in datasheet.

Best Regards

Paul

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Amit_Kumar1
Senior Contributor II

Hi Tian

In datasheet ENOB is given for 16 bit ADC only I need to know for 12 bit also

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regards,

Amit

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Paul_Tian
NXP Employee
NXP Employee

Hi, Amit

I checked other MCU which has 12-bit ADC. There is not ENOB. So I think you can use quantization error directly and no need to care ENOB.

Hope my reply can help you.

Best Regards

Paul