Overview

Features and Benefits

  • Easy evaluation of the ADM2482E/ADM2487E
  • Isolated ground plane layout
  • Configurable as full duplex or half duplex
  • Evaluation of the ADM2482E at 16 Mbps
  • Evaluation of the ADM2487E at 500 kbps

Product Details

The ADM2487E evaluation board 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 ADM2487E feature an integrated transformer driver that outputs a pair of square waves to an external transformer to provide isolated power. When the ADM2487E is 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 ADM2487E is 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).

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