{"id":7811,"date":"2026-06-27T03:35:15","date_gmt":"2026-06-27T03:35:15","guid":{"rendered":"https:\/\/materialparts.com\/mpl115a2-2\/"},"modified":"2026-06-27T03:35:15","modified_gmt":"2026-06-27T03:35:15","slug":"mpl115a2-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/mpl115a2-2\/","title":{"rendered":"MPL115A2"},"content":{"rendered":"

Productos<\/h2>\n

The MPL115A2 is a miniature digital barometer from NXP Semiconductors with I2C interface, 50-115 kPa pressure range, 12-bit resolution, and integrated temperature compensation in a 3 x 5 x 1.2 mm LGA package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Pressure Range<\/td>\n50 kPa to 115 kPa (500-1150 hPa)<\/td>\n<\/tr>\n
Resolution<\/td>\n12-bit (0.015 kPa \/ 0.15 hPa)<\/td>\n<\/tr>\n
Accuracy<\/td>\n\u00b11 kPa (10 hPa) over 50-115 kPa<\/td>\n<\/tr>\n
Interface<\/td>\nI2C (up to 400 kHz)<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n2.375 V to 5.5 V<\/td>\n<\/tr>\n
Supply Current (Active)<\/td>\n5 \u00b5A typical (1 sample\/s)<\/td>\n<\/tr>\n
Supply Current (Shutdown)<\/td>\n1 \u00b5A max<\/td>\n<\/tr>\n
Conversion Time<\/td>\n1 ms typical (pressure + temperature)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +105\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nLGA-8 (3 x 5 x 1.2 mm)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Integrated MEMS pressure sensor and ASIC<\/li>\n
  • 12-bit ADC resolution for pressure<\/li>\n
  • On-chip temperature compensation via coefficients<\/li>\n
  • Low power: 5 \u00b5A at 1 sample\/second<\/li>\n
  • Simple I2C interface with auto-increment<\/li>\n
  • Factory-calibrated coefficients stored in on-chip EEPROM<\/li>\n
  • Shutdown mode for battery-powered applications<\/li>\n
  • RoHS compliant, halogen-free package<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Weather stations and forecasting<\/li>\n
    • Altitude and elevation measurement<\/li>\n
    • Indoor navigation<\/li>\n
    • Smartphones and tablets<\/li>\n
    • HVAC systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MPL115A2 is a miniature digital barometer from NXP Semiconductors with I2C interface, 50-115 kPa pressure range, 12-bit resolution, and integrated temperature compensation in a 3 x 5 x 1.2 mm LGA package. Key Specifications Pressure Range 50 kPa to 115 kPa (500-1150 hPa) Resolution 12-bit (0.015 kPa \/ 0.15 hPa) Accuracy \u00b11 […]<\/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":[168],"class_list":["post-7811","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-sensors","chip_brand-nxp"],"acf":{"brief_explanation":"Digital barometer, 50-115kPa, I2C, 12-bit, 5\u00b5A, LGA-8","date_code":"","package_case":"LGA-8 (3 x 5 x 1.2 mm)","in_stock":4320,"datasheet":"https:\/\/www.nxp.com\/docs\/en\/data-sheet\/MPL115A2.pdf","price":"$3.50 @ 1ku","product_introduction":"The MPL115A2 is a miniature digital barometer from NXP Semiconductors that integrates a MEMS pressure sensor with a signal conditioning ASIC in a compact 3x5x1.2mm LGA package. It measures absolute pressure from 50 to 115 kPa with 12-bit resolution (0.015 kPa steps) and \u00b11 kPa accuracy. The device includes an integrated temperature sensor and factory-calibrated compensation coefficients stored in on-chip EEPROM. Communication is via a standard I2C interface at up to 400 kHz. The host reads raw pressure and temperature data along with calibration coefficients and performs the compensation calculation using the provided formula. At just 5 \u00b5A active current (1 sample\/second) and 1 \u00b5A in shutdown, the MPL115A2 is ideal for battery-powered weather stations and altimeters.","working_principle":"The MPL115A2 uses a piezoresistive MEMS pressure sensor element fabricated on a silicon die. The sensor consists of a thin silicon diaphragm with implanted piezoresistors forming a Wheatstone bridge. Atmospheric pressure deflects the diaphragm, changing the resistance of the piezoresistive elements and producing a differential voltage output proportional to pressure. The ASIC digitizes both the pressure bridge output and the on-chip temperature sensor using a 12-bit ADC. Temperature compensation is essential because piezoresistive elements have significant temperature coefficients. The factory stores unique calibration coefficients (a0, b1, b2, c12) in on-chip EEPROM. The host microcontroller reads the raw pressure and temperature ADC values along with these coefficients and applies the polynomial compensation formula: Pcomp = a0 + (b1 + c12 times Tadc) times Padc + b2 times Tadc, then scales to kPa. This approach achieves \u00b11 kPa accuracy over the full temperature range.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>SDA<\/td>I\/O<\/td>I2C serial data (open-drain)<\/td><\/tr>\n
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>\n
      3<\/td>VDD<\/td>Power<\/td>Supply voltage (2.375-5.5V)<\/td><\/tr>\n
      4<\/td>SCL<\/td>Input<\/td>I2C serial clock<\/td><\/tr>\n
      5<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>\n
      6<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>\n
      7<\/td>SHDN<\/td>Input<\/td>Shutdown (active high, connect to GND for normal)<\/td><\/tr>\n
      8<\/td>RST<\/td>Input<\/td>Reset (active low, internal pull-up)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Weather Stations:<\/strong> 50-115 kPa range and \u00b11 kPa accuracy for barometric pressure measurement and weather forecasting<\/li>\n
      • Altitude Measurement:<\/strong> 12-bit resolution enables approximately 1.2m altitude resolution using the barometric formula<\/li>\n
      • Indoor Navigation:<\/strong> Pressure-based floor detection in multi-story buildings where GPS is unavailable<\/li>\n
      • Smartphones\/Tablets:<\/strong> Compact LGA package and 5 \u00b5A current enable integration into mobile devices<\/li>\n
      • HVAC Systems:<\/strong> Barometric pressure compensation for airflow calculations in building automation<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>\n
        MPL3115A2<\/td>NXP<\/td>20-110 kPa, 20-bit, SPI\/I2C, altitude mode<\/td><\/tr>\n
        BMP280<\/td>Bosch<\/td>300-1100 hPa, I2C\/SPI, smaller package<\/td><\/tr>\n
        DPS310<\/td>Infineon<\/td>300-1200 hPa, SPI\/I2C, \u00b10.5 hPa accuracy<\/td><\/tr>\n
        LPS22HB<\/td>ST<\/td>260-1260 hPa, I2C\/SPI, embedded FIFO<\/td><\/tr>\n
        BME280<\/td>Bosch<\/td>Pressure + humidity + temperature, I2C\/SPI<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7811","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=7811"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7811\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=7811"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=7811"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=7811"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}