{"id":8711,"date":"2026-06-30T04:01:58","date_gmt":"2026-06-30T04:01:58","guid":{"rendered":"https:\/\/materialparts.com\/ad8497crmz-r7\/"},"modified":"2026-06-30T04:01:58","modified_gmt":"2026-06-30T04:01:58","slug":"ad8497crmz-r7","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/ad8497crmz-r7\/","title":{"rendered":"AD8497CRMZ-R7"},"content":{"rendered":"

Productos<\/h2>\n

The AD8497CRMZ-R7 is an Analog Devices precision K-type thermocouple amplifier with integrated cold junction compensation. It produces a 5 mV\/\u00b0C output directly from a thermocouple signal by combining an ice point reference with a precalibrated amplifier. The device operates from supply voltages of 2.7 V to 36 V (single) or \u00b12.7 V to \u00b118 V (dual), and is packaged in an 8-lead MSOP rated for -40\u00b0C to +125\u00b0C operation.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n
Thermocouple Type<\/td>\nK (Chromel-Alumel)<\/td>\n<\/tr>\n
Output Sensitivity<\/td>\n5 mV\/\u00b0C<\/td>\n<\/tr>\n
Initial Accuracy<\/td>\n1.5\u00b0C max (at 25\u00b0C)<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n2.7 V to 36 V (single)<\/td>\n<\/tr>\n
Corriente de reposo<\/td>\n180 \u00b5A (typical)<\/td>\n<\/tr>\n
Input Overvoltage<\/td>\nVS \u00b1 25 V<\/td>\n<\/tr>\n
ESD Rating<\/td>\n4.5 kV HBM<\/td>\n<\/tr>\n
Paquete<\/td>\n8-Lead MSOP<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Pretrimmed for K-type thermocouple<\/li>\n
  • Internal cold junction compensation<\/li>\n
  • High impedance differential input<\/li>\n
  • 5 mV\/\u00b0C output (standalone thermometer)<\/li>\n
  • Reference pin for offset adjustment<\/li>\n
  • Thermocouple break detection<\/li>\n
  • 1\u00b0C initial accuracy (laser trimmed)<\/li>\n
  • 4 kV ESD protection<\/li>\n
  • Input overvoltage protection to VS \u00b1 25 V<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • K-type thermocouple temperature measurement<\/li>\n
    • Setpoint controllers<\/li>\n
    • Celsius thermometer<\/li>\n
    • White goods (oven, stovetop) temperature<\/li>\n
    • Exhaust gas temperature sensing<\/li>\n
    • Catalytic converter temperature detection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AD8497CRMZ-R7 is an Analog Devices precision K-type thermocouple amplifier with integrated cold junction compensation. It produces a 5 mV\/\u00b0C output directly from a thermocouple signal by combining an ice point reference with a precalibrated amplifier. The device operates from supply voltages of 2.7 V to 36 V (single) or \u00b12.7 V to […]<\/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":[13,42],"tags":[],"chip_brand":[165],"class_list":["post-8711","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-sensors","chip_brand-adi"],"acf":{"brief_explanation":"Precision K-type thermocouple amplifier with cold junction compensation, 5mV\/\u00b0C output, 8-lead MSOP","date_code":"","package_case":"8-Lead MSOP (3.0 x 3.0 x 0.85 mm)","in_stock":6210,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/ad8494_8495_8496_8497.pdf","price":"","product_introduction":"The AD8497CRMZ-R7 is an Analog Devices precision thermocouple amplifier designed specifically for K-type (Chromel-Alumel) thermocouples. It integrates cold junction compensation and a precalibrated instrumentation amplifier to produce a 5 mV\/\u00b0C output directly, eliminating the need for external compensation circuitry. The device can operate as a standalone Celsius thermometer or as a setpoint controller. It supports wide supply voltage range (2.7 V to 36 V single supply), features 4.5 kV ESD protection, and input overvoltage protection to VS \u00b1 25 V. The 180 \u00b5A typical quiescent current suits battery-powered applications.","working_principle":"The AD8497 operates as a complete thermocouple signal conditioning system with three subsystems: (1) The cold junction compensation circuit integrates a temperature sensor at the reference junction to measure the local temperature and generate a compensating voltage that cancels the thermocouple error voltage at the cold junction. (2) The fixed-gain instrumentation amplifier amplifies the small thermocouple voltage (approximately 41 \u00b5V\/\u00b0C for K-type) to produce a 5 mV\/\u00b0C output. The high CMRR of the instrumentation amplifier rejects common-mode noise picked up by long thermocouple leads. (3) The reference pin (REF) allows offset adjustment for measuring below 0\u00b0C with single supply. The SENSE pin can be connected to the output (measurement mode) or a setpoint voltage (controller mode).","pin_description":"
      Pin<\/th>Mnemonic<\/th>Description<\/th><\/tr>
      1<\/td>-IN<\/td>Negative thermocouple input<\/td><\/tr>
      2<\/td>REF<\/td>Reference voltage input (for offset adjustment)<\/td><\/tr>
      3<\/td>-VS<\/td>Negative supply<\/td><\/tr>
      4<\/td>NC<\/td>No connect<\/td><\/tr>
      5<\/td>SENSE<\/td>Sense pin (connect to OUT or setpoint)<\/td><\/tr>
      6<\/td>OUT<\/td>Amplifier output (5 mV\/\u00b0C)<\/td><\/tr>
      7<\/td>+VS<\/td>Positive supply<\/td><\/tr>
      8<\/td>+IN<\/td>Positive thermocouple input<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial K-type thermocouple temperature measurement with 1\u00b0C accuracy<\/li>\n
      • Oven and stovetop temperature control in white goods<\/li>\n
      • Automotive exhaust gas and catalytic converter temperature monitoring<\/li>\n
      • Setpoint controllers with integrated cold junction compensation<\/li>\n
      • Standalone Celsius thermometer with direct 5 mV\/\u00b0C output<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        AD8495CRMZ-R7<\/td>ADI<\/td>K-type, different input range<\/td><\/tr>
        AD8494CRMZ-R7<\/td>ADI<\/td>J-type thermocouple version<\/td><\/tr>
        AD8496CRMZ-R7<\/td>ADI<\/td>J-type, different input range<\/td><\/tr>
        AD8497ARMZ-R7<\/td>ADI<\/td>K-type, standard accuracy<\/td><\/tr>
        MAX31855K<\/td>Maxim<\/td>SPI output K-type thermocouple IC<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8711","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=8711"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8711\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=8711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=8711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=8711"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=8711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}