I use EVAL-AD5700-1EBZ to connect to RSET of EVAL-AD5422LFEBZ based on the description in the section 'Circuit Evaluation & Test' in the following page.
In the description, the connection is shown as the attached file.
However, EAVL-AD5700-1EBZ itself has C12(22nF) between HART_OUT pin and GND and C14(2.2uF) between HART_OUT pin to HART_OUT borad termial. they are NOT show in the description and CN0278.
How do they work and affect on HART_OUT signal?
Do I need to remove them?
If you want to replicate the functionality of the CN-0278, you have to follow the schematic based on Figure 11 on the circuit note (attached image). You have to remove C12 and C14 on the EVAL-AD57000-1EBZ board.