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steven Community Member Offline Posts: 59	Question on a calibration method Feb 14^th, 2006, 6:36pm Hi, I have a question on calibrating ADC. Some calibration method requires RAM to store calibrated codes. How is this RAM built? I think this method would reqire off-chip circuitries. Thanks
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Paul

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Switzerland

Re: Question on a calibration method
Reply #1 - Feb 16^th, 2006, 12:41pm

Hi Steven,

frequently ADCs are integrated with a microcontroller, which can take care of eventual calculations required for calibration and which certainly has RAM where it can store the coefficients. If you are designing a pure ADC product, you certainly prefer using custom logic for calibration processing and storage of the coefficients (i.e. registers).

Does this answer your question?

Paul

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steven

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Posts: 59

Re: Question on a calibration method
Reply #2 - Feb 16^th, 2006, 6:25pm

Paul wrote on Feb 16^th, 2006, 12:41pm:

Hi Steven,

frequently ADCs are integrated with a microcontroller, which can take care of eventual calculations required for calibration and which certainly has RAM where it can store the coefficients. If you are designing a pure ADC product, you certainly prefer using custom logic for calibration processing and storage of the coefficients (i.e. registers).

Does this answer your question?

Paul

Hi Paul,

Yes, your answer makes sense. I was confused by the digital calibration method on ADC and the others using microprocessor methods. Thank you.

Regards,
Steven

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