Author Topic: How repeatable is sample-to-sample Delta Sigma ADC timing? (Read 846 times)

741 · « **on:** March 02, 2018, 05:45:36 pm »

I get the impression that there seems to be uncertainly over 'when' a sample is taken with delta sigma.

Basically I need precise sample-to-sample timing, 240 SPS or better. How can I work this out from a typical DS?

MasterT · « **Reply #1 on:** March 02, 2018, 07:24:37 pm »

Depends on a part number. Microchip says for MCP3422 & MCP3550 there is no timing to settle Sinc filter, so basically its easy to use. Sample is timestamped at the request. But TI and almost anyone else specify in DS 5-6 samples to settle Sinc. TI has app. note on this matter. http://www.ti.com/lit/an/slyt264/slyt264.pdf

danadak · « **Reply #2 on:** March 03, 2018, 08:49:52 pm »

Do you need resultant to be in synch or the time the S/H in A/D takes its sample ?

Regards, Dana.


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Author Topic: How repeatable is sample-to-sample Delta Sigma ADC timing? (Read 846 times)

741

How repeatable is sample-to-sample Delta Sigma ADC timing?

MasterT

Re: How repeatable is sample-to-sample Delta Sigma ADC timing?

danadak

Re: How repeatable is sample-to-sample Delta Sigma ADC timing?

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