{"id":8706,"date":"2026-06-30T04:01:52","date_gmt":"2026-06-30T04:01:52","guid":{"rendered":"https:\/\/materialparts.com\/iso3088dwr\/"},"modified":"2026-06-30T04:01:52","modified_gmt":"2026-06-30T04:01:52","slug":"iso3088dwr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/iso3088dwr\/","title":{"rendered":"ISO3088DWR"},"content":{"rendered":"

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

The ISO3088DWR is a Texas Instruments 20-Mbps, half-duplex, 2.5-kVrms isolated RS-485 and RS-422 transceiver. It features integrated galvanic isolation between the bus-side transceiver and the logic-side interface, rated at 2500 V RMS per UL 1577 and 4000 V PK basic insulation per DIN EN IEC 60747-17. The device is available in a 16-pin SOIC (DW) package and operates over a temperature range of -40\u00b0C to +85\u00b0C.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u6570\u636e\u901f\u7387<\/td>\n20 Mbps<\/td>\n<\/tr>\n
Duplex<\/td>\nHalf-Duplex<\/td>\n<\/tr>\n
\u9694\u79bb\u7535\u538b<\/td>\n2500 V RMS (UL 1577)<\/td>\n<\/tr>\n
Transient Isolation Voltage<\/td>\n4000 V PK<\/td>\n<\/tr>\n
ESD \u4fdd\u62a4\uff08HBM\uff09<\/td>\n12 kV (bus to GND2)<\/td>\n<\/tr>\n
CMTI<\/td>\n25 kV\/\u00b5s (min)<\/td>\n<\/tr>\n
Unit Load<\/td>\n1\/8 (up to 256 nodes)<\/td>\n<\/tr>\n
Supply Voltage VCC1<\/td>\n3.15 V to 5.5 V<\/td>\n<\/tr>\n
Supply Voltage VCC2<\/td>\n4.5 V to 5.5 V<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Meets or exceeds TIA\/EIA RS-485 requirements<\/li>\n
  • Signaling rates up to 20 Mbps<\/li>\n
  • 1\/8 unit load – up to 256 nodes on a bus<\/li>\n
  • Thermal shutdown protection<\/li>\n
  • Low bus capacitance – 16 pF (typical)<\/li>\n
  • 50 kV\/\u00b5s typical transient immunity<\/li>\n
  • Fail-safe receiver for bus open, short, idle<\/li>\n
  • 3.3-V inputs are 5-V tolerant<\/li>\n
  • Bus-pin ESD protection: 12-kV HBM<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Security systems<\/li>\n
    • Factory automation<\/li>\n
    • Motor and motion control<\/li>\n
    • HVAC and building automation networks<\/li>\n
    • Chemical production<\/li>\n
    • Networked security stations<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ISO3088DWR is a Texas Instruments 20-Mbps, half-duplex, 2.5-kVrms isolated RS-485 and RS-422 transceiver. It features integrated galvanic isolation between the bus-side transceiver and the logic-side interface, rated at 2500 V RMS per UL 1577 and 4000 V PK basic insulation per DIN EN IEC 60747-17. The device is available in a 16-pin […]<\/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":[138],"class_list":["post-8706","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"20-Mbps half-duplex 2.5-kVrms isolated RS-485\/RS-422 transceiver with 12-kV HBM ESD protection","date_code":"","package_case":"SOIC-16 (DW) (10.3 x 7.5 x 2.65 mm)","in_stock":8742,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/iso3088.pdf","price":"$1.613 @ 1ku","product_introduction":"The ISO3088DWR is a Texas Instruments isolated half-duplex RS-485 and RS-422 transceiver capable of data rates up to 20 Mbps. It integrates galvanic isolation rated at 2500 V RMS per UL 1577, breaking the ground loop to allow a much larger common-mode voltage range for long transmission lines. The device features 1\/8 unit load enabling up to 256 nodes on a single bus, fail-safe receiver operation, thermal shutdown protection, and 12-kV HBM ESD protection between bus pins and GND2. It is qualified for use from -40\u00b0C to +85\u00b0C in an SOIC-16 package.","working_principle":"The ISO3088DWR operates as an isolated half-duplex transceiver with two subsystems: (1) The logic-side interface, powered by VCC1 (3.15-5.5V), handles driver input (DI), receiver output (RO), and direction control (DE\/RE). (2) The bus-side transceiver, powered by VCC2 (4.5-5.5V), drives the differential bus lines A and B. The galvanic isolation barrier between the two sides is implemented using capacitive coupling technology, providing 2500 V RMS isolation and 25 kV\/\u00b5s minimum common-mode transient immunity. The driver converts single-ended logic signals into differential outputs on the bus, while the receiver converts differential bus signals back to single-ended logic levels. Fail-safe logic ensures the receiver output is high when the bus is open, shorted, or idle.","pin_description":"
      Pin<\/th>Mnemonic<\/th>Description<\/th><\/tr>
      1<\/td>VCC1<\/td>Logic-side supply voltage (3.15-5.5 V)<\/td><\/tr>
      2<\/td>RO<\/td>Receiver output<\/td><\/tr>
      3<\/td>DE<\/td>Driver output enable (active high)<\/td><\/tr>
      4<\/td>DI<\/td>Driver data input<\/td><\/tr>
      5<\/td>GND1<\/td>Logic-side ground<\/td><\/tr>
      6<\/td>GND2<\/td>Bus-side ground<\/td><\/tr>
      7<\/td>A<\/td>Bus-side non-inverting input\/output<\/td><\/tr>
      8<\/td>B<\/td>Bus-side inverting input\/output<\/td><\/tr>
      9<\/td>Z<\/td>Bus-side inverting driver output<\/td><\/tr>
      10<\/td>Y<\/td>Bus-side non-inverting driver output<\/td><\/tr>
      11-16<\/td>VCC2\/NC<\/td>Bus-side supply and no-connect pins<\/td><\/tr><\/table>","application_scenarios":"
      • Isolated RS-485 networks in factory automation with 256-node bus capability<\/li>
      • Security and access control systems requiring galvanic isolation<\/li>
      • Motor drive and motion control with high noise immunity (12 kV ESD)<\/li>
      • HVAC building automation with long transmission lines<\/li>
      • Chemical and industrial process control with ground loop isolation<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        ISO3086DWR<\/td>TI<\/td>Full-duplex version<\/td><\/tr>
        ISO3082DWR<\/td>TI<\/td>Half-duplex, lower data rate options<\/td><\/tr>
        ISO15DWR<\/td>TI<\/td>1 Mbps isolated transceiver<\/td><\/tr>
        ADM2587EBRWZ<\/td>ADI<\/td>Similar isolated RS-485, integrated power<\/td><\/tr>
        ISO35DWR<\/td>TI<\/td>35 Mbps isolated transceiver<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8706","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=8706"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8706\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=8706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=8706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=8706"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=8706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}