{"id":3653,"date":"2026-06-07T13:03:25","date_gmt":"2026-06-07T13:03:25","guid":{"rendered":"https:\/\/materialparts.com\/iso3082dwr\/"},"modified":"2026-06-07T13:03:25","modified_gmt":"2026-06-07T13:03:25","slug":"iso3082dwr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/iso3082dwr\/","title":{"rendered":"ISO3082DWR"},"content":{"rendered":"

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

The ISO3082DWR from Texas Instruments is a galvanically isolated RS-485\/RS-422 transceiver with 2500V RMS isolation in a 16-pin SOIC-W package. Operating at 200kbps with 3.3V or 5V supply, it provides bus-side ESD protection and half-duplex communication for industrial networks.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u6570\u636e\u901f\u7387<\/td>\n200 kbps<\/td>\n<\/tr>\n
\u9694\u79bb\u7535\u538b<\/td>\n2500 Vrms<\/td>\n<\/tr>\n
\u914d\u7f6e<\/td>\nHalf-Duplex RS-485\/RS-422<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.3V or 5V (logic side)<\/td>\n<\/tr>\n
Bus Nodes<\/td>\nUp to 160<\/td>\n<\/tr>\n
ESD Protection<\/td>\n+\/-16 kV (bus pins, HBM)<\/td>\n<\/tr>\n
Common-Mode Range<\/td>\n-7V to +12V<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-16W (wide)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 2500V RMS galvanic isolation<\/li>\n
  • 200kbps data rate<\/li>\n
  • Half-duplex RS-485\/RS-422<\/li>\n
  • +\/-16kV ESD on bus pins (HBM)<\/li>\n
  • 3.3V or 5V logic-side supply<\/li>\n
  • Up to 160 bus nodes<\/li>\n
  • Fail-safe receiver inputs<\/li>\n
  • Hot-plug capable<\/li>\n
  • Low bus capacitance: 6pF<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Isolated RS-485 fieldbus interfaces<\/li>\n
    • Industrial automation networks<\/li>\n
    • Motor drive communication<\/li>\n
    • Isolated UART links<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ISO3082DWR from Texas Instruments is a galvanically isolated RS-485\/RS-422 transceiver with 2500V RMS isolation in a 16-pin SOIC-W package. Operating at 200kbps with 3.3V or 5V supply, it provides bus-side ESD protection and half-duplex communication for industrial networks. Key Specifications Data Rate 200 kbps Isolation Voltage 2500 Vrms Configuration Half-Duplex RS-485\/RS-422 Supply […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[138],"class_list":["post-3653","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"2.5kV isolated RS-485 200kbps, half-duplex, SOIC-16W, requires ext iso power","date_code":"","package_case":"SOIC-16W (10.3 x 7.5 x 2.65 mm)","in_stock":5594,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/iso3082.pdf","price":"$4.20 @ 1ku","product_introduction":"The ISO3082DWR from Texas Instruments is a galvanically isolated half-duplex RS-485\/RS-422 transceiver providing 2500V RMS isolation between the logic side and bus side in a 16-pin wide-body SOIC package. Unlike the ADM2587E which integrates isolated DC-DC power, the ISO3082 requires an external isolated power supply for the bus side, but offers a simpler isolation barrier. Operating at 200kbps with +\/-16kV ESD protection on bus pins, 160-node capability, and 3.3V or 5V logic-side supply, it is well-suited for long-distance Modbus and PROFIBUS fieldbus networks.","working_principle":"The ISO3082 operates through four subsystems: (1) Capacitive Isolation Barrier: TI isoLogic capacitive coupling technology transfers digital signals across a silicon dioxide isolation barrier rated at 2500V RMS for 1 minute. (2) RS-485 Transceiver: A standard differential RS-485 driver and receiver on the bus side support 200kbps data rate with fail-safe receiver inputs (open\/shorted bus defaults to logic high). (3) Power Isolation: Unlike the ISO3088 or ADM2587E, the ISO3082 does NOT include an integrated isolated DC-DC converter. An external isolated 5V supply must power the VCC2 (bus-side) pin. (4) Protection: +\/-16kV HBM ESD on bus pins, -7V to +12V common-mode input range, and hot-plug capability with glitch-free power-up\/down.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>VCC1<\/td>Power<\/td>Logic-side supply (3.3V or 5V)<\/td><\/tr>
      2<\/td>RXD<\/td>Output<\/td>Received data output<\/td><\/tr>
      3<\/td>DE<\/td>Input<\/td>Driver enable (active high)<\/td><\/tr>
      4<\/td>\/RE<\/td>Input<\/td>Receiver enable (active low)<\/td><\/tr>
      5<\/td>TXD<\/td>Input<\/td>Transmit data input<\/td><\/tr>
      6<\/td>GND1<\/td>Power<\/td>Logic-side ground<\/td><\/tr>
      8<\/td>VCC2<\/td>Power<\/td>Isolated bus-side supply (5V, external)<\/td><\/tr>
      9<\/td>GND2<\/td>Power<\/td>Isolated bus-side ground<\/td><\/tr>
      13<\/td>B<\/td>I\/O<\/td>RS-485 bus B (inverting)<\/td><\/tr>
      14<\/td>A<\/td>I\/O<\/td>RS-485 bus A (non-inverting)<\/td><\/tr><\/table>","application_scenarios":"
      • Isolated Modbus RTU RS-485 networks with external isolated 5V supply<\/li>
      • Industrial motor drive RS-485 communication with 2500V isolation<\/li>
      • Building automation fieldbus with +\/-16kV ESD protection on bus pins<\/li>
      • Isolated UART links where external DC-DC is already available<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Isolation<\/th>Speed<\/th>Notes<\/th><\/tr>
        ISO3088DWR<\/td>TI<\/td>2500V<\/td>200kbps<\/td>With integrated DC-DC<\/td><\/tr>
        ADM2587EBRWZ<\/td>ADI<\/td>2500V<\/td>500kbps<\/td>Integrated isoPower<\/td><\/tr>
        ISO1176DWR<\/td>TI<\/td>2500V<\/td>40Mbps<\/td>High-speed, ext power<\/td><\/tr>
        RHV3521-EVKIT<\/td>Renesas<\/td>2500V<\/td>500kbps<\/td>Alternative vendor<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3653","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=3653"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3653\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=3653"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=3653"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=3653"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=3653"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}