{"id":6970,"date":"2026-06-22T11:59:24","date_gmt":"2026-06-22T11:59:24","guid":{"rendered":"https:\/\/materialparts.com\/tmp411adr\/"},"modified":"2026-06-29T09:40:19","modified_gmt":"2026-06-29T09:40:19","slug":"tmp411adr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/tmp411adr\/","title":{"rendered":"TMP411ADR"},"content":{"rendered":"

Productos<\/h2>\n

The TMP411ADR from Texas Instruments is a remote and local temperature sensor with 1C accuracy, N-factor and series resistance correction, and SOIC-8 package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Tipo<\/td>\nRemote and Local Temperature Sensor with N-Factor Correction<\/td>\n<\/tr>\n
Remote Accuracy<\/td>\n+\/-1C (max, +60C to +100C)<\/td>\n<\/tr>\n
Local Accuracy<\/td>\n+\/-1.5C (max, +25C to +125C)<\/td>\n<\/tr>\n
Resolution<\/td>\n0.0625C (12-bit)<\/td>\n<\/tr>\n
Interface<\/td>\nI2C\/SMBus (2-wire)<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n1.7V to 3.6V (A version)<\/td>\n<\/tr>\n
Supply Current<\/td>\n270 uA (typical, active); 3 uA (standby)<\/td>\n<\/tr>\n
N-Factor Correction<\/td>\nYes (registers for remote transistor)<\/td>\n<\/tr>\n
Series Resistance Cancellation<\/td>\nYes (auto, up to 300 Ohm)<\/td>\n<\/tr>\n
Alert Functions<\/td>\nTHERM, THERM2, ALERT<\/td>\n<\/tr>\n
Paquete<\/td>\nSOIC-8 (D suffix)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40C to +125C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • +\/-1C remote temperature accuracy (60C to 100C)<\/li>\n
  • N-factor and series resistance correction for remote diode<\/li>\n
  • 12-bit resolution (0.0625C)<\/li>\n
  • Local and remote temperature monitoring<\/li>\n
  • Programmable alert thresholds (THERM, ALERT)<\/li>\n
  • I2C\/SMBus compatible interface<\/li>\n
  • 1.7V to 3.6V supply range<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • CPU\/FPGA die temperature monitoring<\/li>\n
    • Server thermal management<\/li>\n
    • Industrial process temperature sensing<\/li>\n
    • Notebook computer thermal protection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TMP411ADR from Texas Instruments is a remote and local temperature sensor with 1C accuracy, N-factor and series resistance correction, and SOIC-8 package. Key Specifications Type Remote and Local Temperature Sensor with N-Factor Correction Remote Accuracy +\/-1C (max, +60C to +100C) Local Accuracy +\/-1.5C (max, +25C to +125C) Resolution 0.0625C (12-bit) Interface I2C\/SMBus […]<\/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":[19,13,42],"tags":[],"chip_brand":[165],"class_list":["post-6970","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","category-sensors","chip_brand-adi"],"acf":{"brief_explanation":"Remote+Local Temp Sensor, 1C Acc, N-Factor, SOIC-8","date_code":"","package_case":"SOIC-8 (4.9 x 3.9 x 1.5 mm, 1.27mm pitch)","in_stock":6543,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tmp411.pdf","price":"$1.15 @ 1ku","product_introduction":"The TMP411ADR from Texas Instruments is a dual-channel remote and local temperature sensor with built-in N-factor correction and series resistance cancellation in an SOIC-8 package. The A suffix indicates the 1.7V to 3.6V low-voltage version, D denotes the SOIC-8 package, and R indicates tape and reel. The TMP411 measures the temperature of a remote transistor junction (typically an embedded thermal diode in a CPU, GPU, or FPGA) with +\/-1C accuracy from 60C to 100C, and a local temperature with +\/-1.5C accuracy. The N-factor correction register allows calibration for different remote diode non-ideality factors (N-factor), compensating for process variations between different CPU\/FPGA thermal diodes. The automatic series resistance cancellation removes errors caused by up to 300 Ohm of PCB trace resistance between the sensor and the remote diode, which is critical in large server boards with long trace runs. The 12-bit (0.0625C) resolution provides fine temperature granularity for thermal management algorithms. Multiple alert outputs (THERM, THERM2, ALERT) support tiered thermal throttling and shutdown strategies.","working_principle":"The TMP411ADR measures remote temperature using a remote diode sensing technique. The device sources two different currents (I1 and I2, typically in a ratio of approximately 1:17) through the remote transistor diode and measures the resulting forward voltage drops (VF1 and VF2). The temperature is calculated from the difference: Delta_VF = VF2 - VF1 = (kT\/q) x ln(I2\/I1) x N, where k is Boltzmann's constant, T is absolute temperature, q is electron charge, and N is the diode non-ideality factor. The N-factor correction register allows the user to program the actual N-factor of the remote diode (which varies between CPU manufacturers and process nodes), eliminating the measurement error caused by the assumption of an ideal N=1.006 diode. The series resistance cancellation works by sourcing three different currents and solving for the series resistance component, which adds a constant offset to both VF1 and VF2 measurements. By measuring at three current levels, the device can extract and subtract the IR drop, compensating for up to 300 Ohm of total series resistance. The local temperature is measured using an on-chip bandgap-based temperature sensor with 12-bit ADC conversion.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>SDA<\/td>I\/O<\/td>I2C\/SMBus data (open-drain)<\/td><\/tr>
      2<\/td>SCL<\/td>Input<\/td>I2C\/SMBus clock<\/td><\/tr>
      3<\/td>THERM2<\/td>Output<\/td>Second thermal alert (open-drain)<\/td><\/tr>
      4<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      5<\/td>ALERT<\/td>Output<\/td>Temperature alert (open-drain)<\/td><\/tr>
      6<\/td>D-<\/td>Input<\/td>Remote diode cathode<\/td><\/tr>
      7<\/td>D+<\/td>Input<\/td>Remote diode anode<\/td><\/tr>
      8<\/td>V+<\/td>Power<\/td>Supply voltage (1.7-3.6V)<\/td><\/tr><\/table>","application_scenarios":"
      • Server CPU die temperature monitoring with N-factor correction for Intel\/AMD thermal diodes and 300 Ohm series resistance cancellation for long PCB traces<\/li>
      • FPGA thermal management with THERM\/THERM2 tiered throttling: THERM at 85C reduces clock, THERM2 at 100C triggers shutdown<\/li>
      • Notebook GPU thermal protection with 0.0625C resolution for fan speed PID control loop<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TMP411BDR<\/td>SOIC-8<\/td>3.15V-5.5V supply version<\/td><\/tr>
        TI<\/td>TMP431ADGST<\/td>VSSOP-8<\/td>Smaller package, similar function<\/td><\/tr>
        onsemi<\/td>ADT7481ARMZ<\/td>MSOP-10<\/td>Remote + local, similar accuracy<\/td><\/tr>
        Maxim<\/td>MAX6654MEE+<\/td>QSOP-16<\/td>Remote temp sensor, 1C accuracy<\/td><\/tr>
        TI<\/td>TMP451AQDCRQ1<\/td>SOT-23-6<\/td>Automotive, smaller package<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6970","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=6970"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6970\/revisions"}],"predecessor-version":[{"id":8688,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6970\/revisions\/8688"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=6970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=6970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=6970"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}