Product Information
The Melexis MLX90614ESF-AAA is a high-accuracy, high-resolution, non-contact thermometer with a 90-degree field of view. It has a measurement resolution of 0.02°C and is factory calibrated for a wide -70 to 380°C object temperature range. The sensor uses an SMBus (I²C-compatible) digital interface and can be configured to output a customizable 10-bit PWM output for continuous readings. Application Examples - Fire detector on a firefighting robot - Movement detector - Thermal relay with a programmable threshold (e.g. for use in a thermostat) Body temperature measurement - Monitoring of component temperatures, such as motor drivers - Multi-zone temperature control—up to 100 sensors can be read via two common wires Using the Sensor The sensor supports two possible interfaces: SMBus (default) and 10-bit PWM output. The SMBus is completely compatible with I²C (also called TWI) buses for frequencies below 100 kHz and can be used to configure and enable the PWM output if so desired. In addition to the sensor’s datasheet, Melexis’s application note on MLX90614 SMBus communication (589k pdf) and our application note on interfacing Orangutans with the MLX90614 help demonstrate how to use this sensor.
Please note that accurate readings can only be achieved if the sensor is in thermal equilibrium and under isothermal conditions (i.e. there are no temperature differences across the sensor package). The measured object temperature is the average of all objects in the sensor’s field of view. Information Support - MLX90614 Family - MLX90614 Flyer
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