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Digital plug & play infrared thermometer in a TO-can

The 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.

The 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.

Key features MLX90614

  • Small size and low cost
  • Easy to integrate
  • Factory calibrated in wide temperature range: -40 to 125°C for sensor temperature and -70 to 380°C for object temperature
  • High accuracy of 0.5°C over wide temperature range (0..+50 C for both Ta and To)
  • Medical accuracy of 0.1°C in a limited temperature range available on request
  • Measurement resolution of 0.02°C
  • Single and dual zone versions
  • SMBus compatible digital interface for fast temperature readings and building sensor networks
  • Customizable PWM output for continuous reading
  • Available in 3V and 5V versions
  • Simple adaptation for 8 to 16V applications
  • Power saving mode
  • Different package options for applications and measurements versatility
  • Automotive grade

Application areas

  • High-precision non-contact temperature measurement
  • Thermal comfort sensor for mobile air conditioning control
  • Windscreen fogging
  • Blind spot detection in cars
  • Temperature sensor for air conditioning in residential, commercial and industrial buildings
  • Presence detector
  • Fire/heat detection, alarm systems
  • Mobile telephones
  • Industrial temperature control
  • Temperature control in laser printers and copiers
  • Domestic appliances:
        -Microwave ovens
        -Cooker
        -Heaters
        -Hair dryers
  • Public health
  • Monitoring of livestock
  • Sensor grid for multi-zone temperature control
  • Thermal relay/alarm
Martin Wesseling
Martin Wesseling Line Manager Sense martin.wesseling@dacomwest.de
T: +49 (0) 2129 376-216

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