MLX90640 Sensor: Datasheet, Pinout and Alternatives

UTMEL

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

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MLX90640ESF-BAA-000-TU

MLX90640ESF-BAA-000-TU

Melexis Technologies NV

Thermal Not Applicable 32H x 24V TO-205AD, TO-39-3 Metal Can 2.9V~3.6V -40°C~85°C Bulk

Purchase Guide

Thermal Not Applicable 32H x 24V TO-205AD, TO-39-3 Metal Can 2.9V~3.6V -40°C~85°C Bulk

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

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

Melexis Technologies NV MLX90640ESF-BAA-000-TU technical specifications, attributes, parameters and parts with similar specifications to Melexis Technologies NV MLX90640ESF-BAA-000-TU.
  • Type
    Parameter
  • Factory Lead Time
    24 Weeks
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    TO-205AD, TO-39-3 Metal Can
  • Surface Mount

    having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.

    NO
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    -40°C~85°C
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Bulk
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    Not Applicable
  • Number of Terminations
    4
  • Type
    Thermal
  • Voltage - Supply

    Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.

    2.9V~3.6V
  • Terminal Position

    In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.

    BOTTOM
  • Terminal Form

    Occurring at or forming the end of a series, succession, or the like; closing; concluding.

    WIRE
  • Number of Functions
    1
  • Supply Voltage

    Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.

    3.3V
  • Reach Compliance Code

    Reach Compliance Code refers to a designation indicating that electronic components meet the requirements set by the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation in the European Union. It signifies that the manufacturer has assessed and managed the chemical substances within the components to ensure safety and environmental protection. This code is vital for compliance with regulations aimed at minimizing risks associated with hazardous substances in electronic products.

    compliant
  • JESD-30 Code

    JESD-30 Code refers to a standardized descriptive designation system established by JEDEC for semiconductor-device packages. This system provides a systematic method for generating designators that convey essential information about the package's physical characteristics, such as size and shape, which aids in component identification and selection. By using JESD-30 codes, manufacturers and engineers can ensure consistency and clarity in the specification of semiconductor packages across various applications and industries.

    R-XBCY-W4
  • Supply Voltage-Max (Vsup)

    The parameter "Supply Voltage-Max (Vsup)" in electronic components refers to the maximum voltage that can be safely applied to the component without causing damage. It is an important specification to consider when designing or using electronic circuits to ensure the component operates within its safe operating limits. Exceeding the maximum supply voltage can lead to overheating, component failure, or even permanent damage. It is crucial to adhere to the specified maximum supply voltage to ensure the reliable and safe operation of the electronic component.

    3.6V
  • Supply Voltage-Min (Vsup)

    The parameter "Supply Voltage-Min (Vsup)" in electronic components refers to the minimum voltage level required for the component to operate within its specified performance range. This parameter indicates the lowest voltage that can be safely applied to the component without risking damage or malfunction. It is crucial to ensure that the supply voltage provided to the component meets or exceeds this minimum value to ensure proper functionality and reliability. Failure to adhere to the specified minimum supply voltage may result in erratic behavior, reduced performance, or even permanent damage to the component.

    3V
  • Active Pixel Array

    The term "Active Pixel Array" refers to the area within an electronic component, such as a camera sensor or display panel, where individual pixels are located and actively capture or display images. This array is made up of a grid of tiny light-sensitive or light-emitting elements that work together to form the overall image. The size and arrangement of the active pixel array directly impact the resolution and quality of the images produced by the electronic component. By controlling the properties of the active pixel array, manufacturers can enhance the performance and capabilities of the device in terms of image clarity, color accuracy, and overall functionality.

    32H x 24V
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    Non-RoHS Compliant
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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.
MLX90640ESF-BAA-000-TU

Melexis Technologies NV

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