{"id":7563,"date":"2026-06-26T04:33:14","date_gmt":"2026-06-26T04:33:14","guid":{"rendered":"https:\/\/materialparts.com\/xtr115ua-2k5\/"},"modified":"2026-06-26T04:33:14","modified_gmt":"2026-06-26T04:33:14","slug":"xtr115ua-2k5","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/xtr115ua-2k5\/","title":{"rendered":"XTR115UA\/2K5"},"content":{"rendered":"

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

The XTR115UA\/2K5 from Texas Instruments is a precision 4-20mA current loop transmitter with on-chip 5V regulator and 2.5V reference for industrial sensor signal conditioning in SOIC-8 package.<\/p>\n

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Loop Current Range<\/td>\n4 mA to 20 mA<\/td>\n<\/tr>\n
Supply Voltage (Loop)<\/td>\n7.5V to 36V<\/td>\n<\/tr>\n
On-Chip Regulator<\/td>\n5V (for external circuitry)<\/td>\n<\/tr>\n
On-Chip Reference<\/td>\n2.5V precision reference<\/td>\n<\/tr>\n
Span Error<\/td>\n+\/-0.05% typical<\/td>\n<\/tr>\n
Nonlinearity<\/td>\n+\/-0.003% typical<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n200 uA typical<\/td>\n<\/tr>\n
Output Current Limit<\/td>\n25 mA (typical)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8 (UA suffix)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • 4-20mA current loop transmitter for industrial sensors<\/li>\n
  • On-chip 5V regulator and 2.5V reference for sensor excitation<\/li>\n
  • +\/-0.003% ultra-low nonlinearity<\/li>\n
  • 200uA low quiescent current preserves loop dynamic range<\/li>\n
  • 25mA output current limit for fault protection<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial 4-20mA current loop sensor transmitter<\/li>\n
    • Pressure and temperature sensor signal conditioning<\/li>\n
    • Process control instrumentation<\/li>\n
    • Remote data acquisition with loop power<\/li>\n
    • Two-wire 4-20mA transmitter with HART modem<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The XTR115UA\/2K5 from Texas Instruments is a precision 4-20mA current loop transmitter with on-chip 5V regulator and 2.5V reference for industrial sensor signal conditioning in SOIC-8 package. Key Specifications Loop Current Range 4 mA to 20 mA Supply Voltage (Loop) 7.5V to 36V On-Chip Regulator 5V (for external circuitry) On-Chip Reference 2.5V precision […]<\/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":[19,13],"tags":[],"chip_brand":[138],"class_list":["post-7563","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"4-20mA current loop transmitter, 5V reg, 2.5V ref, SOIC-8","date_code":"","package_case":"SOIC-8 (4.9 x 3.9 x 1.5 mm)","in_stock":6500,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/xtr115.pdf","price":"$3.50 @ 1ku","product_introduction":"The XTR115UA\/2K5 from Texas Instruments is a precision 4-20mA current loop transmitter designed for industrial sensor signal conditioning. The device integrates a 5V regulator for powering external sensor circuitry and a precision 2.5V reference for DAC or ADC excitation. The 200uA quiescent current preserves loop dynamic range, allowing the sensor circuitry to consume up to 3.8mA within the 4mA live-zero. The +\/-0.003% nonlinearity and +\/-0.05% span error provide high-accuracy current transmission. The output current is limited to 25mA for fault protection. The UA\/2K5 suffix denotes SOIC-8 package with 2500-unit tape and reel.","working_principle":"The XTR115UA\/2K5 operates as a precision 4-20mA current loop transmitter. (1) The device converts a voltage input at the IIN pin to a proportional current output on the loop. The internal amplifier and output transistor regulate the loop current so that IOUT = (IIN x 100) + IQ, where IIN is the input current and IQ is the quiescent current (200uA typical). An external resistor sets the input voltage-to-current conversion ratio. The 4mA live-zero is established by the quiescent current, and the 20mA full-scale is reached when the input contributes 16mA. (2) The on-chip 5V regulator (VREG pin) provides up to 3.6mA for powering external circuitry such as op-amps, ADCs, and sensor excitation. The precision 2.5V reference (VREF pin) is used for DAC reference or sensor bridge excitation. Both VREG and VREF are derived from the loop supply, eliminating external regulators. (3) The 25mA output current limit protects against output short circuits and excessive loop current. The 7.5V minimum loop supply voltage ensures the internal circuitry operates correctly while maintaining the loop current. The two-wire configuration powers the transmitter from the loop current itself, requiring no separate power supply.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>IIN<\/td>Current input (signal)<\/td><\/tr>
      2<\/td>IRET<\/td>Reference return (ground for external circuitry)<\/td><\/tr>
      3<\/td>VREG<\/td>5V regulator output<\/td><\/tr>
      4<\/td>VREF<\/td>2.5V reference output<\/td><\/tr>
      5<\/td>GND<\/td>Ground<\/td><\/tr>
      6<\/td>LO<\/td>Limit output (open collector, active low)<\/td><\/tr>
      7<\/td>ET<\/td>Emitter of output transistor<\/td><\/tr>
      8<\/td>IO<\/td>Collector of output transistor (loop current)<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial 4-20mA current loop sensor transmitter with loop power<\/li>
      • Pressure and temperature sensor signal conditioning with 5V regulator<\/li>
      • Process control instrumentation with +\/-0.003% nonlinearity<\/li>
      • Remote data acquisition with two-wire loop power<\/li>
      • Two-wire 4-20mA transmitter with HART modem overlay<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        XTR116UA\/2K5<\/td>TI<\/td>4.096V reference instead of 2.5V<\/td><\/tr>
        AD694JNZ<\/td>ADI<\/td>Voltage input, 0-20mA, larger pkg<\/td><\/tr>
        XTR111AIDGQR<\/td>TI<\/td>0-20mA, voltage output, QFN<\/td><\/tr>
        AD5421BCPZ-RL7<\/td>ADI<\/td>16-bit DAC, 4-20mA, LFCSP<\/td><\/tr>
        MAX12900ATJ+<\/td>ADI<\/td>12-bit DAC, 4-20mA, TSSOP<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7563","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=7563"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7563\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7563"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7563"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}