{"id":6631,"date":"2026-06-18T15:46:23","date_gmt":"2026-06-18T15:46:23","guid":{"rendered":"https:\/\/materialparts.com\/adm2587ebrwz\/"},"modified":"2026-06-18T15:46:23","modified_gmt":"2026-06-18T15:46:23","slug":"adm2587ebrwz","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/adm2587ebrwz\/","title":{"rendered":"ADM2587EBRWZ"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The ADM2587EBRWZ from Analog Devices is an isolated RS-485\/RS-422 transceiver with integrated iCoupler digital isolation. Combining a transceiver, transformer driver, and isolation in a single SOIC-20W package, it provides 2.5kV isolation with no external components. Supports data rates up to 500kbps.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Protocol<\/td>\nRS-485 \/ RS-422<\/td>\n<\/tr>\n
\u6570\u636e\u901f\u7387<\/td>\n500kbps<\/td>\n<\/tr>\n
\u9694\u79bb\u7535\u538b<\/td>\n2500V RMS (1 minute)<\/td>\n<\/tr>\n
Supply (Logic Side)<\/td>\n3.3V or 5V (VDD)<\/td>\n<\/tr>\n
Supply (Bus Side)<\/td>\n5V (VISO, internally generated)<\/td>\n<\/tr>\n
ESD Protection<\/td>\n+\/-15kV HBM on bus pins<\/td>\n<\/tr>\n
Common Mode Transient<\/td>\n>25kV\/us immunity<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-20W (wide)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Integrated 2.5kV digital isolation (iCoupler)<\/li>\n
  • No external isolation components required<\/li>\n
  • Half-duplex RS-485 transceiver<\/li>\n
  • +\/-15kV ESD protection on bus pins<\/li>\n
  • 3.3V or 5V logic-side supply<\/li>\n
  • Thermal shutdown protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Isolated industrial RS-485 networks<\/li>\n
    • Modbus communication with ground loop isolation<\/li>\n
    • Motor drive and PLC interfaces<\/li>\n
    • Medical equipment data isolation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ADM2587EBRWZ from Analog Devices is an isolated RS-485\/RS-422 transceiver with integrated iCoupler digital isolation. Combining a transceiver, transformer driver, and isolation in a single SOIC-20W package, it provides 2.5kV isolation with no external components. Supports data rates up to 500kbps. Key Specifications Protocol RS-485 \/ RS-422 Data Rate 500kbps Isolation Voltage 2500V […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[],"class_list":["post-6631","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics"],"acf":{"brief_explanation":"Isolated RS-485 transceiver, 2.5kV, 500kbps, iCoupler, SOIC-20W","date_code":"","package_case":"SOIC-20W (wide)","in_stock":14068,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/ADM2587E.pdf","price":"$5.50 @ 1ku","product_introduction":"The ADM2587EBRWZ from Analog Devices is a fully isolated RS-485\/RS-422 transceiver that integrates the transceiver, digital isolator, and isolated power into a single SOIC-20W package. Using ADI's iCoupler technology, it provides 2.5kV RMS galvanic isolation between the logic and bus sides without requiring external optocouplers, transformers, or DC-DC converters. The internal isolated DC-DC converter generates the bus-side 5V supply from the logic-side 3.3V or 5V input. The RS-485 transceiver supports half-duplex communication at up to 500kbps. The +\/-15kV ESD protection and >25kV\/us common-mode transient immunity ensure robust operation in harsh industrial environments. The device is ideal for applications requiring ground loop elimination and high-voltage isolation, such as Modbus networks, motor drives, and medical equipment.","working_principle":"The ADM2587E uses ADI's iCoupler technology, which replaces traditional optocouplers with micro-transformers fabricated on a single chip. High-speed digital signals are modulated, transmitted across the isolation barrier via the transformers, and demodulated on the other side. The internal DC-DC converter uses a similar transformer-based approach to generate the isolated bus-side 5V supply (VISO) from the logic-side VDD. The RS-485 transceiver on the bus side converts between the differential RS-485 bus signals and the isolated digital signals. When the driver is enabled, the TXD signal is transmitted across the isolation barrier and drives the A and B bus outputs differentially. When the receiver is enabled, the differential A\/B signals are converted to a single-ended digital signal and transmitted back across the isolation barrier to RXD. The 2.5kV isolation rating ensures safety and eliminates ground loops between system nodes.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>VDD<\/td>Logic-side supply (3.3V or 5V)<\/td><\/tr>
      2<\/td>RXD<\/td>Receive data output (isolated)<\/td><\/tr>
      3<\/td>DE<\/td>Driver enable (active high)<\/td><\/tr>
      4<\/td>RE<\/td>Receiver enable (active low)<\/td><\/tr>
      5<\/td>TXD<\/td>Transmit data input (isolated)<\/td><\/tr>
      6<\/td>GND1<\/td>Logic-side ground<\/td><\/tr>
      7-10<\/td>NC<\/td>Not connected (isolation gap)<\/td><\/tr>
      11<\/td>GND2<\/td>Bus-side ground (isolated)<\/td><\/tr>
      12<\/td>B<\/td>RS-485 bus inverting line<\/td><\/tr>
      13<\/td>A<\/td>RS-485 bus non-inverting line<\/td><\/tr>
      14<\/td>VISO<\/td>Isolated 5V output (bus-side supply)<\/td><\/tr>
      15-20<\/td>NC\/GND2<\/td>Not connected \/ bus-side ground<\/td><\/tr><\/table>","application_scenarios":"
      • Isolated Modbus RS-485 networks with 2.5kV ground loop elimination<\/li>
      • Motor drive communication interfaces requiring >25kV\/us common-mode immunity<\/li>
      • Medical equipment RS-485 data links with galvanic isolation<\/li>
      • Industrial PLC I\/O modules with single-package isolated transceiver<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        ADM2582EBRWZ<\/td>ADI<\/td>16Mbps, higher speed version<\/td><\/tr>
        ISO1176DWR<\/td>TI<\/td>Isolated RS-485, 40Mbps, external supply<\/td><\/tr>
        MAX14850<\/td>Maxim<\/td>Isolated RS-485, 25Mbps<\/td><\/tr>
        SN65HVD1782<\/td>TI<\/td>Non-isolated, 3.3V, higher speed<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6631","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=6631"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6631\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6631"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}