Other Parts Discussed in Thread: ADS1298, ADS1298R
We are using ADS1298ECGFE-PDK to acquire ECG data. We are observing a 11mV offset in the recorded data of all the channel.
We tied the Channel 3P and Channel 3N of ADS1298ECGFE-PDK to ground and recorded the values. We could observe a 11mv offset in the Channel 3 of ADS1298(since ADS1298 measures differential voltage i.e Channel 3P- Channel3N).
1.Is this a normal behaviour ?
2.How should we compensate for the offset in all the channels ?
3.Will a normal offset correction on the ADS1298 channel work ?
4. How should we calibrate the channels where RLD is used as the reference ? (since RLD is also generated by the ADS1298)
5. How should we calibrate the channels where WCT is used as the reference ? (Since WCT is derived from channel 3P,channel 3N and channel 2P).
6.Please guide us through the process of calibrating the ADS1298 for (Lead I,II, V1-V2-V3-V4-V5-V6 ECG system )
We are in plan for using the same calibration approach for our custom Board with ADS1298
We used ADS1298xECG-FE software from TI for visualising the data from ADS1298ECGFE-PDK.