AD8233 in two electrode mode

Hi,

For our two electrode-based ECG design, we are planning to use AD8233. As part of the evaluation, we attempted the following but the signal captured doesn't look like ECG. It would be great, if someone can let us know if we are doing something wrong. 

The settings followed were 

  • DC leads off two-electrode mode 
    • FR is disabled (S1 in FR_DIS)
    • S2 in DC position
    • S3 in EN position
    • S4 in RLD_SDN 
    • P2 and P6 is loaded 
    • P9 and P8 is loaded
    • P4 is loaded
    • Electrodes are connected to RL and LA as well as tried with RA and LA
  • AC leads off two-electrode mode
    • FR is disabled (S1 in FR_DIS)
    • S2 in AC position
    • S3 in EN position
    • S4 in RLD_SDN 
    • P7 and P6 is loaded 
    • P9 and P8 is loaded
    • P5 is loaded
    • Electrodes are connected to RA and LA 
    • Even tried with P3 loaded
  • In both cases, the signal looks somewhat like the one shown below
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