Analog DevicesEVAL-ADM2482EEB5ZDevelopment Kits and Tools

The ADM2482E/ADM2487E evaluation boards allow the ADM2482E/ADM2487E isolated RS-485 transceivers to be quickly and easily evaluated. The evaluation board allows all of the input and output functions to be exercised without the need for external components. The ADM2482E/ADM2487E feature an integrated transformer driver that outputs a pair of square waves to an external transformer to provide isolated power. When the ADM2482E/ADM2487E are powered by 3.3 V on the logic side (VDD1), a transformer, U3, is required with a turns ratio of 1:1.5 (DA2303-AL). This ensures that there is enough headroom for the ADP3330 LDO to output a regulated 3.3 V output (EVAL-ADM2482EEB3Z and EVAL-ADM2487EEB3Z). When the ADM2482E/ADM2487E are powered by 5 V on the logic side, a transformer, U3, is required with a turns ratio of 1:1 (GA3157-AL) to give a 5 V input for the ADP3330, which regulates an output of 3.3 V output (EVAL-ADM2482EEB5Z and EVAL-ADM2487EEB5Z).