ADS1198: Noise in data collection

md adil

Part Number: ADS1198

I am able to record data using My ADS1198 based circuit.

I have ADS1198PDK as well.

The data i am receiving is noisy in nature, they are not clean. (See the attached Image).

Even the * channel that i am receiving is noisy.

Only Lead 1 data signal is clean otherwise all are noisy.

I have power taken care of power requirement as per datasheet, providing power supply using a 5V adapter.

So, help me with clearing the signal.

what can i do to have noise free signals.

Thanks.

+1 ChienChun Yang over 1 year ago

Hi,

I may suggest the following -

Use your board, but configure it for internal test signals first, and observe to see whether the noises still present.

Try RLD

Read and follow this post -

Do some Fourier Analysis to figure out the Noise Frequency and probe on your board to see where might be the noises sources.

Thanks.

0 md adil over 1 year ago in reply to ChienChun Yang

Thanks For the link to remove the 50-60Hz noise....

As by fourier analysis is was seen 50-60Hz noise.

Also the noise is in TEST signals as well.

Even in the ADS1198 Evaluation board.

0 md adil over 1 year ago in reply to md adil

UPDATE,

Hi, I provided the power from a 9V battery instead of 6V wall adapter. i was able to receive much clear signals.

I wasn't expecting this much noise due to wall adapter, as there were several LDOs and filtering circuitry onboard, even in Eval board.

well, Here are the results

Also the i provided power from a DC source, same results were obtained.

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