{"id":3408,"date":"2026-06-04T04:31:02","date_gmt":"2026-06-04T04:31:02","guid":{"rendered":"https:\/\/materialparts.com\/iso1211dr\/"},"modified":"2026-06-04T04:31:02","modified_gmt":"2026-06-04T04:31:02","slug":"iso1211dr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/iso1211dr\/","title":{"rendered":"ISO1211DR"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The ISO1211DR from Texas Instruments is an isolated 24V to 60V digital input receiver designed for digital input modules compliant with IEC 61131-2 Types 1, 2, and 3. It provides 2500 VRMS isolation, \u00b170 kV\/\u00b5s CMTI, and accurate current limiting in a compact SOIC-8 package, eliminating the need for field-side power supply.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n
Isolation Rating<\/td>\n2500 VRMS<\/td>\n<\/tr>\n
Withstand Voltage<\/td>\n3600 VPK<\/td>\n<\/tr>\n
CMTI<\/td>\n\u00b170 kV\/\u00b5s<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/td>\n4 Mbps<\/td>\n<\/tr>\n
\u062a\u0623\u062e\u064a\u0631 \u0627\u0644\u0627\u0646\u062a\u0634\u0627\u0631<\/td>\n140 ns (typ)<\/td>\n<\/tr>\n
Supply Voltage (side 1)<\/td>\n2.25V to 5.5V<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8 (4.9 x 3.91 mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • IEC 61131-2 Type 1, 2, 3 compliant<\/li>\n
  • 9V to 300V DC and AC digital input capability<\/li>\n
  • No field-side power supply required<\/li>\n
  • Configurable as source or sink input<\/li>\n
  • Precise current limiting for low power dissipation<\/li>\n
  • \u00b170 kV\/\u00b5s high CMTI<\/li>\n
  • UL 1577, VDE, CSA, TUV certified<\/li>\n
  • Compact SOIC-8 package<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • PLC digital input modules<\/li>\n
    • Motor drive I\/O and position feedback<\/li>\n
    • CNC control systems<\/li>\n
    • Substation automation<\/li>\n
    • Data acquisition and binary input modules<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ISO1211DR from Texas Instruments is an isolated 24V to 60V digital input receiver designed for digital input modules compliant with IEC 61131-2 Types 1, 2, and 3. It provides 2500 VRMS isolation, \u00b170 kV\/\u00b5s CMTI, and accurate current limiting in a compact SOIC-8 package, eliminating the need for field-side power supply. Key […]<\/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-3408","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"Isolated 24-60V digital input receiver, IEC 61131-2 compliant, 2500Vrms isolation, SOIC-8","date_code":"","package_case":"SOIC-8 (4.90 x 3.91 x 1.75 mm)","in_stock":7355,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/iso1211.pdf","price":"$0.464 @ 1ku","product_introduction":"The ISO1211DR is an isolated 24V to 60V digital input receiver from Texas Instruments, designed for digital input modules in industrial applications. It is compliant with IEC 61131-2 Types 1, 2, and 3, and can accept 9V to 300V DC and AC digital inputs. Unlike traditional optocoupler solutions with discrete current limiting, the ISO1211DR provides accurate current limiting in a simple, low-power solution, enabling compact and high-density I\/O module designs. It requires no field-side power supply and can be configured as source or sink input.","working_principle":"The ISO1211DR operates through three key subsystems: (1) Isolation Barrier: A capacitive isolation barrier provides 2500 VRMS basic insulation with \u00b170 kV\/\u00b5s common-mode transient immunity, separating the field side (high voltage) from the logic side (low voltage). (2) Current Limiting: An external sense resistor (RSENSE) sets the input current threshold, providing precise current limiting that meets IEC 61131-2 requirements while minimizing power dissipation compared to discrete resistor solutions. (3) Level Detection: The device detects when the input voltage exceeds the threshold and communicates the logic state across the isolation barrier to the OUT pin with 140ns typical propagation delay, supporting data rates up to 4 Mbps.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>VCC1<\/td>Power<\/td>Logic-side supply (2.25V to 5.5V)<\/td><\/tr>
      2<\/td>OUT<\/td>Output<\/td>Digital output (logic side)<\/td><\/tr>
      3<\/td>GND1<\/td>Ground<\/td>Logic-side ground<\/td><\/tr>
      4<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>
      5<\/td>GND2\/FGND<\/td>Ground<\/td>Field-side ground<\/td><\/tr>
      6<\/td>IN<\/td>Input<\/td>Field-side digital input<\/td><\/tr>
      7<\/td>RSENSE<\/td>Input<\/td>External sense resistor connection<\/td><\/tr>
      8<\/td>VCC2<\/td>Power<\/td>Field-side supply (optional)<\/td><\/tr><\/table>","application_scenarios":"
      • PLC digital input modules with IEC 61131-2 compliance<\/li>
      • Motor drive position feedback and I\/O interfaces<\/li>
      • CNC control binary input channels<\/li>
      • Substation automation digital signal acquisition<\/li>
      • Industrial binary input modules with galvanic isolation<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Channels<\/th>Package<\/th>Notes<\/th><\/tr>
        ISO1212DWR<\/td>TI<\/td>2<\/td>SSOP-16<\/td>Dual-channel version<\/td><\/tr>
        ISO1211DGK<\/td>TI<\/td>1<\/td>VSSOP-8<\/td>Smaller package<\/td><\/tr>
        6N137S<\/td>Renesas<\/td>1<\/td>DIP-8<\/td>Optocoupler alternative<\/td><\/tr>
        HCPL-0611<\/td>Broadcom<\/td>1<\/td>SOIC-8<\/td>High-speed optocoupler<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3408","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=3408"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3408\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3408"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3408"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}