Regarding Current channel sensing through CT in ADE7953

Question

Hi, my question is regarding center tapped configuration of burden resistor. 
 Why this configuration is required? 
 What if I use single burden resistor followed by anti aliasing filter?

dave.smith · Accepted Answer

The ADE7953 has best performance with a shunt on channel A. A shunt will work on channel B with pga gain. This works if the voltage is the same for both current A and B(branch measurement of 2 legs on the same phase). If this is split phase shunts will not work you will need a shunt and CT or 2 CT. 
 CT will require phase compensation and this may be a constant if all the CTs are from the same manufacture and part number. Really depends on the required accuracy. 
 you care correct about shunts they do have a small phase shift and can still be improved with phase compensation for the absolute best performance but may not be required for the accuracy you are looking for. 
 
 Dave)

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Regarding Current channel sensing through CT in ADE7953