{"id":7793,"date":"2026-06-27T03:11:59","date_gmt":"2026-06-27T03:11:59","guid":{"rendered":"https:\/\/ic-vendor.com\/am26lv31eidr\/"},"modified":"2026-06-28T10:09:46","modified_gmt":"2026-06-28T10:09:46","slug":"am26lv31eidr","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/am26lv31eidr\/","title":{"rendered":"AM26LV31EIDR"},"content":{"rendered":"

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

The AM26LV31EIDR is a quad differential line driver from Texas Instruments with \u00b115 kV IEC ESD protection. Operating from a single 3.3V supply, it meets TIA\/EIA-422-B standards, supports up to 32 MHz switching rate, and provides controlled rise\/fall times for balanced bus transmission in a 16-pin SOIC package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Drivers \/ Receivers<\/td>\n4 \/ 0<\/td>\n<\/tr>\n
Protocol<\/td>\nRS-422 \/ RS-485<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.0 V to 3.6 V (3.3 V nominal)<\/td>\n<\/tr>\n
Switching Rate<\/td>\nUp to 32 MHz<\/td>\n<\/tr>\n
\u4f20\u64ad\u5ef6\u8fdf<\/td>\n8 ns typical<\/td>\n<\/tr>\n
Pulse Skew<\/td>\n500 ps typical<\/td>\n<\/tr>\n
Output Drive Current<\/td>\n\u00b130 mA<\/td>\n<\/tr>\n
Differential Output Voltage<\/td>\n2.6 V typical (100 \u03a9 load)<\/td>\n<\/tr>\n
Rise\/Fall Time<\/td>\n5 ns typical (controlled)<\/td>\n<\/tr>\n
ESD Protection<\/td>\n\u00b115 kV HBM, \u00b18 kV IEC contact, \u00b115 kV IEC air gap<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-16 (D)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Meets TIA\/EIA-422-B and ITU V.11 standards<\/li>\n
  • 3.3V single supply operation<\/li>\n
  • \u00b115 kV IEC ESD protection on bus pins<\/li>\n
  • 32 MHz maximum switching rate<\/li>\n
  • 8 ns typical propagation delay<\/li>\n
  • 500 ps typical pulse skew<\/li>\n
  • \u00b130 mA output drive current<\/li>\n
  • Controlled 5 ns rise and fall times<\/li>\n
  • 5V logic input compatible with 3.3V supply<\/li>\n
  • Three-state outputs<\/li>\n
  • Glitch-free power-up\/power-down<\/li>\n
  • Short-circuit protection on driver outputs<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • RS-422 balanced bus transmission<\/li>\n
    • Industrial communication networks<\/li>\n
    • Motor encoder interfaces<\/li>\n
    • Point-to-point and multidrop data links<\/li>\n
    • Backplane transceiver logic<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AM26LV31EIDR is a quad differential line driver from Texas Instruments with \u00b115 kV IEC ESD protection. Operating from a single 3.3V supply, it meets TIA\/EIA-422-B standards, supports up to 32 MHz switching rate, and provides controlled rise\/fall times for balanced bus transmission in a 16-pin SOIC package. Key Specifications Drivers \/ Receivers […]<\/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-7793","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics"],"acf":{"brief_explanation":"Quad RS-422 driver, 3.3V, 32MHz, \u00b115kV ESD, SOIC-16","date_code":"","package_case":"SOIC-16 (9.9 x 6.0 x 1.5 mm)","in_stock":8497,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/am26lv31e.pdf","price":"$0.55 @ 1ku","product_introduction":"The AM26LV31E is a quad differential line driver with three-state outputs and \u00b115 kV IEC ESD protection from Texas Instruments. It is designed for balanced bus transmission at switching rates up to 32 MHz, meeting or exceeding TIA\/EIA-422-B and ITU V.11 requirements. The driver operates from a single 3.3 V supply while accepting 5 V logic inputs. Features include 8 ns propagation delay, 500 ps pulse skew, \u00b130 mA output drive, and controlled 5 ns rise\/fall times for minimized EMI. The device supports Ioff partial power-down mode operation and provides glitch-free power-up\/power-down protection with driver output short-circuit protection.","working_principle":"The AM26LV31E contains four independent differential line drivers. Each driver accepts a single-ended logic input and produces a complementary pair of output signals (Y and Z) with controlled transition times. When the driver enable is active, the input is converted to a differential current drive of \u00b130 mA into a balanced load. The controlled 5 ns rise\/fall times minimize EMI and reflections on twisted-pair transmission lines. The 3.3 V supply powers an internal reference and bias network that sets the output common-mode voltage and drive current. The three-state outputs go high-impedance when the enable pin is deasserted. The ESD protection clamps on the bus pins absorb transient energy from electrostatic discharge events up to \u00b115 kV (HBM and IEC air gap) and \u00b18 kV (IEC contact). The Ioff feature ensures the outputs remain in a known state during partial power-down.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>1Y<\/td>Output<\/td>Driver 1 non-inverting output<\/td><\/tr>\n
      2<\/td>1Z<\/td>Output<\/td>Driver 1 inverting output<\/td><\/tr>\n
      3<\/td>2Y<\/td>Output<\/td>Driver 2 non-inverting output<\/td><\/tr>\n
      4<\/td>2Z<\/td>Output<\/td>Driver 2 inverting output<\/td><\/tr>\n
      5<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>\n
      6<\/td>3Y<\/td>Output<\/td>Driver 3 non-inverting output<\/td><\/tr>\n
      7<\/td>3Z<\/td>Output<\/td>Driver 3 inverting output<\/td><\/tr>\n
      8<\/td>4Y<\/td>Output<\/td>Driver 4 non-inverting output<\/td><\/tr>\n
      9<\/td>4Z<\/td>Output<\/td>Driver 4 inverting output<\/td><\/tr>\n
      10<\/td>4A<\/td>Input<\/td>Driver 4 input<\/td><\/tr>\n
      11<\/td>3A<\/td>Input<\/td>Driver 3 input<\/td><\/tr>\n
      12<\/td>G<\/td>Input<\/td>Enable input (active high)<\/td><\/tr>\n
      13<\/td>2A<\/td>Input<\/td>Driver 2 input<\/td><\/tr>\n
      14<\/td>1A<\/td>Input<\/td>Driver 1 input<\/td><\/tr>\n
      15<\/td>VCC<\/td>Power<\/td>Supply voltage (3.0-3.6V)<\/td><\/tr>\n
      16<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Industrial Communication:<\/strong> RS-422 bus transmission up to 32 MHz for high-speed factory automation networks<\/li>\n
      • Motor Encoder Interface:<\/strong> Differential driver for transmitting quadrature encoder signals over long cables<\/li>\n
      • Multidrop Data Links:<\/strong> \u00b115 kV ESD protection ensures robustness in multi-node RS-422 networks<\/li>\n
      • Backplane Signaling:<\/strong> Controlled 5 ns rise\/fall times minimize reflections on PCB backplanes<\/li>\n
      • 5V\/3.3V Mixed Systems:<\/strong> 5V logic input compatible with 3.3V supply bridges voltage domains<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th>Package<\/th>Speed<\/th><\/tr>\n
        AM26LV31EIPWR<\/td>TI<\/td>TSSOP-16 package option for space-constrained board layouts<\/td>TSSOP-16<\/td>32Mbps<\/td><\/tr>\n
        AM26LV31EIRGYR<\/td>TI<\/td>VQFN-16 package (4x3.5mm) for minimal footprint ultra-compact designs<\/td>VQFN-16<\/td>32Mbps<\/td><\/tr>\n
        SN65LV31DW<\/td>TI<\/td>Similar quad RS-422 driver in SOIC-16, 3.3V supply with IEC ESD protection<\/td>SOIC-16<\/td>32Mbps<\/td><\/tr>\n
        MC3487DR2G<\/td>onsemi<\/td>5V RS-422 quad driver for legacy 5V systems with separate enable controls<\/td>SOIC-16<\/td>10Mbps<\/td><\/tr>\n
        DS26LV31TMX<\/td>MaxLinear<\/td>3.3V RS-422 quad driver with similar pinout and ESD protection rating<\/td>SOIC-16<\/td>32Mbps<\/td><\/tr>\n
        SN65HVD31DR<\/td>TI<\/td>Enhanced version with \u00b116kV IEC ESD and extended common-mode range for industrial<\/td>SOIC-16<\/td>32Mbps<\/td><\/tr>\n<\/table>\n

        The AM26LV31E is a 3.3V quad RS-422 differential line driver with individual driver enables. For 5V systems, the MC3487 provides equivalent functionality. The SN65HVD31 offers enhanced ESD protection for harsh industrial environments.<\/p>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/7793","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=7793"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/7793\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=7793"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=7793"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=7793"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7793"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}