ADS1292R: input multiplexer configuration for monitoring the Lead-1, Lead-2, Lead-3 ECG signals

vinod naidu

Prodigy 210 points

Part Number: ADS1292R
Other Parts Discussed in Thread: ADS1292ECG-FE, TXB0108, ADS1293

hi i am working on a ECG sensor module, ADS1292R Breakout board

I am getting the Resp signals on channel-1, and ECG signals form Channel-2 which is fine

Now

1. How would I generate the Lead-1 (LA - RA) , Lead-2 (RA - RL), Lead-3 (LA - RL) ECG signals from the ads1292r sensor

i am a bit confused to configure the input multiplexer,

can any one give me a clear note on how to configure the corresponding registers to get the Lead voltages and

over 8 years ago

0 Tom Hendrick over 8 years ago

TI__Guru**** 182081 points

Hi Vinod,

Have you looked through the Users Guide for the ADS1292ECG-FE EVM? Check out section 6.2.2 on Lead Derivation.

0 vinod naidu over 8 years ago in reply to Tom Hendrick

Prodigy 210 points

yup i have gone through the ADS1x9xECG-FE user guide it shows the selection of different leads to monitor the ecg signals

it is a gui interphasing and i am not using the ADS1x9xECG EVM board ,

i have purchased a different board

this breakout board is having ADS1292R IC along with some other ti controller IC ( YE085CKG4CYNN ) which can give the SPI inter-phasing

0 Tom Hendrick over 8 years ago in reply to vinod naidu

TI__Guru**** 182081 points

Hi Vinod,

I'm not familiar with that piece of hardware. The 'other ti controller' on that board is actually a TXB0108 8-bit bidirectional level shifter. I don't have the tools to view their schematic but it looks like CH1 is dedicated to respiration measurement so it might be a little difficult for you to get the signals you are looking for.

0 vinod naidu over 8 years ago in reply to Tom Hendrick

Prodigy 210 points

yup i got it , the board which i got gives only lead-1 voltage
if i want to get 6 channel ecg i have to get a ads1293 IC or i have to purchase ads1292r EVM
thank you

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ADS1292R: input multiplexer configuration for monitoring the Lead-1, Lead-2, Lead-3 ECG signals