MLX90614 Non-contact Infrared Temperature

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  • Operating Voltage: 3.6 Volts – 5.5 Volts
  • Ambient Temperature Range: -40°C – 125°C
  • Object Temperature Range: -70°C – 380°C
  • Measurement resolution: 0.02°C
  • ESD Sensitivity: 2kV
  • Sink/Source Current: 25mA
  • ADC Resolution: 17 bits
  • IR sensor is integrated with an optical filter, a DSP, and a low noise amplifier for fine output digital signals.
  • Supports power-saving mode and is available in single and dual versions
  • It is a power-efficient and highly sensitive sensor.
  • High accuracy of 0.5°C over wide temperaturerange (0… 50°C for both Ta and To) High (medical) accuracy calibration
  • Single and dual zone versions
  • SMBus compatible digital interface
  • Customizable PWM output for continuousreading
  • Simple adaptation for 8…16V applications
  • Sleep mode for reduced power consumption

Factory calibrated in wide temperature range:

  • -40 – 125°C for sensor temperature
  • -70 – 380°C for object temperature


  • MLX90614 is an infrared thermometer for non-contact temperature measurements.
  • Both the IR sensitive thermopile detector chip and the signal conditioning ASIC are integrated in the same TO-39 can.
  • Integrated into the MLX90614 are a low noise amplifier, 17-bit ADC and powerful DSP unit thus achieving high accuracy and resolution of the thermometer.
  • The thermometer comes factory calibrated with a digital SMBus output giving full access to the measured temperature in the complete temperature range(s) with a resolution of 0.02°C.
  • The user can configure the digital output to be pulse width modulation (PWM). As a standard, the 10-bit PWM is configured to continuously transmit the measured temperature in range of -20 to 120°C, with an output resolution of 0.14°C.

Applications Examples:

  • High precision non-contact temperature measurements
  • Thermal Comfort sensor for Mobile Air Conditioning control system
  • Temperature sensing element for residential,commercial and industrial building airc onditioning Windshield defogging
  • Automotive blind angle detection
  • Industrial temperature control of moving parts
  • Temperature control in printers and copiers
  • Home appliances with temperature control
  • Healthcare
  • Livestock monitoring
  • Movement detection
  • Multiple zone temperature control – up to 127 sensors can be read via common 2 wires
  • Thermal relay / alert
  • Body temperature measurement