In datasheet Rev. 1 pin 17 is defined as DGND. In datasheet Rev. 2 pin 17 is defined as MODE which should be pulled high for HART applications.The designs in which pin 17 is connected to ground are considered as "legacy Design".
In datasheet Rev. 1 pin 17 is defined as DGND. In datasheet Rev. 2 pin 17 is defined as MODE which should be pulled high for HART applications.The designs in which pin 17 is connected to ground are considered as "legacy Design".