ADS1298: interference

Amy Luo

Part Number: ADS1298

Hi Team,

Customers used ADS1298R to make a 12-lead ECG detection. Using ECG analog generator as input signal, the measured signal is good, as shown in Fig. 1, but when RA, LA and RLD are attached to the body, the waveform becomes very strange, as shown in Fig. 2. What is the interference? Any suggestions?

Regards,

Amy

over 6 years ago

0 Collin Wells over 6 years ago

TI__Guru 64045 points

Hi Amy,

Noise issues are common in these types of systems and if you search this forum you'll find a ton of helpful threads on this subject. Please try some of the suggestions in the links below, capture the results, and then share them back with us. Doing so will greatly help our debug.

Here is an FAQ that includes some good suggestions:

https://e2e.ti.com/support/data-converters/f/73/p/793623/2935479#2935479

Here's a link to a search with a bunch of related "ADS1298 RLD Noise" threads :

https://www.google.com/search?q=site%3A+e2e.ti.com+ADS1298+RLD+noise&rlz=1C1CHBF_enUS763US763&oq=site%3A++e2e.ti.com+ADS1298+RLD+noise&aqs=chrome..69i57j69i58.8591j0j7&sourceid=chrome&ie=UTF-8

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ADS1298: interference