MLX90614 Contactless IR Infrared Thermometer Sensor Module

MLX90614 is an Infrared thermometer for non-contact temperature measurements. Both the IR sensitive thermopile detector chip and the signal conditioning ASSP are integrated in the same TO-39 can.
With low noise amplifier, 17-bit ADC and powerful DSP unit, high accuracy and resolution of the thermometer is achieved. The thermometer comes factory calibrated with a digital PWM and SMBus (System Management Bus) output. As a standard, the 10-bit PWM is configured to continuously transmit the measured temperature in the range of -20 to 120 ºC, with an output resolution of 0.14 ºC and the POR default is SMBus.
Applications:

Body temperature
Heating surface temperature detection
Non-contact temperature detector

Pin Definitions:
These are the main pinout of MLX90614.

Pin#
Type
Parameters

Pin#1
VSS
It is a ground pin.

Pin#2
SCL
It is Serial Clock input for a protocol of two wire. At this pin, there is a Zener diode of 5.7V to connect it with other Bipolar transistors.

Pin#3
PWM / SDA
It is digital input and output pin, the measured value of temperature can get by this pinout.

Pin#4
VDD
It is an external power supply.