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MLX90640 Sensor: Datasheet, Pinout and Alternatives

Q: What is MLX90640 used for?

MLX90640 is used t to monitor the temperature of your CPU or coffee pot or to build your own heat-seeking night vision camera.

Q: How does MLX90640 work?

It uses an array of infrared detectors (and likely filters) to detect the radiation given off by objects. Along with a Raspberry Pi computer, the MLX90640 will be used to map and record fairly high-resolution temperature maps.

UTMEL

Published: 26 August 2021 | Last Updated: 26 August 2021

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datasheet pdf and product details from stock available at Utmel

Purchase Guide

The MLX90640 is a fully calibrated 32x24 pixels thermal IR array in an industry-standard 4-lead TO39 package with a digital interface. This article mainly covers datasheet, pinout, alternatives, applications, and other details about MLX90640.

The Melexis MLX90640 addresses growing demands seen across numerous applications for thermal analysis. The sensor provides enhanced resolution while still occupying an attractive price point. During this demo Joris Roels, Marketing Manager Temperature Sensors, gives more technical details on the thermal infrared sensor and explains its primary applications, including people detection, fire prevention, building automation, lighting control, surveillance and air conditioning systems.

Melexis MLX90640, The Far Infrared (IR) Thermal Sensor Array 32x24 RES

Catalog

MLX90640 Pinout

MLX90640 PINOUT.png

MLX90640 pin description.png

MLX90640 CAD Model

Symbol

MLX90640 symbol.png

Footprint

MLX90640 footprint.png

MLX90640 Description

The MLX90640 is a fully calibrated 32x24 pixels thermal IR array in an industry-standard 4-lead TO39 package with a digital interface. The MLX90640 contains 768 FIR pixels. An ambient sensor is integrated to measure the ambient temperature of the chip and a supply sensor to measure the VDD. T

Specifications

technical specifications, attributes, parameters and parts with similar specifications to .

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MLX90640 Block Diagram

MLX90640 block diagram.png

MLX90640 Features

Small size, low cost 32x24 pixels IR array
Easy to integrate
Industry standard four lead TO39 package
Factory calibrated
Noise Equivalent Temperature Difference (NETD) 0.1K RMS @1Hz refresh rate
I2C compatible digital interface
Programmable refresh rate 0.5Hz…64Hz
3.3V supply voltage
Current consumption less than 23mA
2 FOV options – 55°x35° and 110°x75°
Operating temperature -40°C ÷ 85°C
Target temperature -40°C ÷ 300°C
Complies with RoHS regulations

MLX90640 Applications

High precision non-contact temperature measurements
Intrusion / Movement detection
Presence detection / Person localization
The temperature sensing element for intelligent building air conditioning
Thermal Comfort sensor in automotive Air Conditioning control system
Microwave ovens
Industrial temperature control of moving parts
Visual IR thermometers

MLX90640 Circuit

MLX90640 circuit.png

MLX90640 Alternatives

MLX90640 alternatives.png

AMG8833 vs. MLX90640

The MLX90640 has a resolution of 32x24 for about $70 and the AMG8833 has a resolution of 8x8 for about $40. Both sensors can be used with methods like find_blobs() to make thermal vision tracking applications. For a demonstration (shot with the OpenMV Cam M7) see the video below.

MLX90640 Manufacturer

Melexis is a global supplier of micro-electronic semiconductor solutions and stands for engineering that enables the best imaginable future - a future that is safe, clean, comfortable, and healthy. All of these aspects are reflected in the applications that our technology empowers.

Datasheet PDF"

Frequently Asked Questions

What is MLX90640?

The MLX90640 is a fully calibrated 32x24 pixels thermal IR array in an industry-standard 4-lead TO39 package with a digital interface. The MLX90640 contains 768 FIR pixels. An ambient sensor is integrated to measure the ambient temperature of the chip and a supply sensor to measure the VDD.

What is MLX90640 used for?

MLX90640 is used t to monitor the temperature of your CPU or coffee pot or to build your own heat-seeking night vision camera.

How does MLX90640 work?

It uses an array of infrared detectors (and likely filters) to detect the radiation given off by objects. Along with a Raspberry Pi computer, the MLX90640 will be used to map and record fairly high-resolution temperature maps.

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