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ESD protection for ADS1292 ECG Front end

hiteshgambhava
Intellectual 475 points
Other Parts Discussed in Thread: ADS1292, TPD1E10B06

Hi,

We are using ADS1292 as a ECG front end and have a question on ESD protection for it.

As we know ECG Electrodes will come directly in contact with Human body, so direct contact, indirect contact and air discharge all of them are applicable to ECG electrode.  We have used TPD1E10B06 on ECG signal near electrodes for ESD protection. Still we see issues at 2KV contact discharge as well as -4KV / + 6KV Air.

Is there any special ESD diode or protection scheme for ECG to protect ADS1292 from ESD ? 

Thanks.

BR,

Hitesh Gambhava