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Original question:

ADS1298R: Pls help to review the schemetic

ADS1298R: Some question about ADS1298R ,pls help to review the schmetic

Gabriel Wang1
Genius 4045 points
Part Number: ADS1298R
Other Parts Discussed in Thread: ADS1292R, ADS1298

Dear Expert

We are now designing a 12 lead ECG+RESP+anti defibrillation interference product using ADS1298R. Could you please help us check the issue with the principle design.
Is the connection method of the 12 lead ECG correct?
2. Is the RESP connection method correct?
3. If the above two methods are connected correctly, does it mean that one limb lead V6 is missing?
4. What are the good methods to handle the need for anti defibrillation in products?
5. If ADS1298R cannot design a product with 12 lead ECG+RESP function? Please recommend a product that can perform 12 lead ECG+RESP function.
Please reply as soon as possible, thank you.

8270.ECG-ADS1298R.PDF

  • 0
    TI__Mastermind 49566 points

    HI Gabriel,

    What is the AVSS voltage level and how is it generated?

    ADS1298R cannot support 12 lead ECG with Resp function.

    Can you reach out to me directly regarding your customer?

  • 0 in reply to Praveen Aroul
    Prodigy 40 points

    Hello Praveen,

    Thank you very much for your reply. 

    1.AVSS voltage have two option :a . Connected -2.5V b. Connected to GND .

    But we found that connected the -2.5V supply it could be cause lead off issue ,so we change to single end voltage supply ,AVSS connected to GND .

    2.Can we use the ADS1298+ADS1292R solution to realize the 12-channel Resp function? Is there any schematic diagram for reference?

    Or other solutions that can achieve the above functions and related references.