ADS1298RECGFE-PDK: Augmented leads seem to be incorrect. Lead aVL measurement is identical to Lead II, and aVF looks like an aVL.

Quan Dong

Part Number: ADS1298RECGFE-PDK
Other Parts Discussed in Thread: ADS1198ECGFE-PDK

Hello everyone,

I bought an ADS1298RECGFE-PDK recently, and used it with the ADS1298XECGFE-PDK-SW software. However, I noticed the augmented leads seem to be incorrect. More specifically, aVL measurement is identical to Lead II (I exported the data into excel and checked the number.) , and aVF looks like an aVL.

I'm using the HW and SW with a Windows 7 machine. In the software, I turned all the channels on and set gain to 12x. The sampling rate is 1000 sps and sample lengths of 1000, 4000 and 8000 were all tried. I'm wondering if I missed any setting. I also have an ADS1198ECGFE-PDK with me, and it has the same problem. Any help will be appreciated. Thanks in advance!

over 5 years ago

0 Alexander Smith over 5 years ago

TI__Mastermind 49051 points

Hello Quan,

Thanks for your post!

This is a known bug and we're working on getting it updated.

e2e.ti.com/.../699193

0 Quan Dong over 5 years ago in reply to Alexander Smith

Prodigy 115 points

Thanks Alex! I saw Ryan Andrews posted a table for augmented leads calculation in your linked threads. Can I have some references for that table?

Btw, I'm wondering if you can give the linked thread an additional tag of the ADS1298RECGFE-PDK, which might help the people in the future. When I were searching the forum for the PDK, the linked thread did not show up. The bug is more for the PDK and I think 1298(r) itself should be OK.

Br,

Quan

0 Alexander Smith over 5 years ago in reply to Quan Dong

TI__Mastermind 49051 points

You're welcome and thanks again for your messages! The link to the video is below the table in Ryan's post.

I'll see what I can do about the tag.

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ADS1298RECGFE-PDK: Augmented leads seem to be incorrect. Lead aVL measurement is identical to Lead II, and aVF looks like an aVL.