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Alan Walsh

Challenges & Requirements: Voltage Reference Design for Precision Successive-Approximation ADCs, Part 2

Alan Walsh
samicksha
samicksha
5/22/2014 6:46:09 AM
User Rank
Student
Re: Best Choice
To avoid conversion errors, the average current required at a particular throughput should not cause the reference voltage to droop more than ½ LSB.

Is it we can ignore the conversion errors...

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sandrad.jerome
sandrad.jerome
5/21/2014 3:11:29 AM
User Rank
Newbie
Best Choice
I would like to appreciate your efforts for exploring this issue. Behance.com

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More Blogs from Alan Walsh
A poorly designed reference circuit can cause serious conversion errors. The most common manifestation of a reference issue is repeated or “stuck” codes from the ADC
Once the drive capability has been determined, we must ensure that the noise from the reference circuit does not affect the ADC’s performance.
The overall precision of a high-resolution, successive-approximation ADC depends on the accuracy, stability, and drive capability of its voltage reference.
How much power does your ADC draw? The spec sheet may provide the answers -- but read the fine print.
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