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26.06. - 28.06.2018, Nuremberg
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Germany / General
André Huntrieser
✆: +49 (0) 2129 - 376-202
✉: Send email
Field Applications Engineer
Günter Fuchs
✆: +49 (0) 2129 376-200
✉: Send email
Tech Support
Raphael Balke
✆: +49 (0) 2129 376-200
✉: Send email

Austria / Switzerland
Karl Eder
✆: +43 (0) 7448 - 21643-11
✉: Send email





The Melexis MLX90129 combines a precise acquisition chain for external resistive sensors with a wide range of interface possibilities. It can be accessed and controlled through its ISO15693 RFID front-end or via its SPI port.
Without any other component than a 13.56MHz tuned antenna, it becomes a RFID thermometer.
For measuring other physical quantities, one or two resistive sensors can be connected to make batteryless sensing points. In this tag mode, the chip can supply a regulated voltage to the other components of the application.
Adding a battery will enable the use of the standalone data logging mode. The sensor output data is stored in the internal 3.5 kbit user memory. One can extend the storage capacity by connecting an external E2PROM to the SPI port.
The SPI port can also connect the MLX90129 to a micro-controller which allows more specific applications, like adding actuating capability or RF transmission.
The MLX90129 has been optimized for low power, low voltage battery and batteryless applications.

Features Application examples
  • Versatile A/D interface for resistivve sensors
  • ISO 15693 13.56MHz transponder
  • Slave/Master SPI interface
  • 4kbit EEPROM with access protection
  • Standalone data-logging mode
  • Ultra-low-power system
  • Battery or batteryless applications
  • Wide power supply range from 2.7V to 5.5V
  • Operating temperature range from -40°C to +105°C
  • Power management and battery low-level detector
  • 20-pin Thin Shrink Small Outline Package (TSSOP)
  • RFID sensor tags
  • Medical and health monitoring sensor tags
  • Standalone datalogger
  • Asset management and monitoring
  • Home and building automation
  • Industrial automation and monitoring

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