MAX31856 Digital Converter: Datasheet, Pinout and Schematic

UTMEL

Published: 12 August 2021 | Last Updated: 12 August 2021

6129

MAX31856MUD

MAX31856MUD

Maxim Integrated

10 Weeks weeks 14-TSSOP (0.173, 4.40mm Width) Tube Active Sensor & Detector Interface ICs Thermocouple to Digital Converter Surface Mount 1 (Unlimited) ROHS3 Compliant

Purchase Guide

10 Weeks weeks 14-TSSOP (0.173, 4.40mm Width) Tube Active Sensor & Detector Interface ICs Thermocouple to Digital Converter Surface Mount 1 (Unlimited) ROHS3 Compliant

The MAX31856 is a precision thermocouple to digital converter with linearization. This article enforces datasheet, pinout, schematic, applications, and other details about MAX31856.

This video is about how to measure temperature with a thermocouple using the max31856

How to Measure Temperature with a Thermocouple Using the MAX31856

MAX31856 Pinout

max31856 Pinout.jpg

max31856 pin configuration.png

MAX31856 Description

The MAX31856 performs cold-junction compensation and digitizes the signal from any type of thermocouple. The output data is formatted in degrees Celsius. This converter resolves temperatures to 0.0078125°C, allows readings as high as +1800°C and as low as -210°C (depending on thermocouple type), and exhibits thermocouple voltage measurement accuracy of ±0.15%. The thermocouple inputs are protected against overvoltage conditions up to ±45V.


MAX31856 CAD Model

Symbol

MAX31856 symbol.png

Footprint

MAX31856 footprint.png

Specifications

Maxim Integrated MAX31856MUD technical specifications, attributes, parameters and parts with similar specifications to Maxim Integrated MAX31856MUD .
  • Type
    Parameter
  • Factory Lead Time
    10 Weeks
  • Mount

    In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.

    Surface Mount
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Surface Mount
  • Package / Case

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

    14-TSSOP (0.173, 4.40mm Width)
  • Number of Pins
    14
  • 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.

    -55°C~125°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.

    Tube
  • Published
    2015
  • 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

    1 (Unlimited)
  • Number of Terminations
    14
  • Type
    Thermocouple to Digital Converter
  • HTS Code

    HTS (Harmonized Tariff Schedule) codes are product classification codes between 8-1 digits. The first six digits are an HS code, and the countries of import assign the subsequent digits to provide additional classification. U.S. HTS codes are 1 digits and are administered by the U.S. International Trade Commission.

    8542.39.00.01
  • 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.

    DUAL
  • Terminal Form

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

    GULL WING
  • 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
  • Terminal Pitch

    The center distance from one pole to the next.

    0.65mm
  • Base Part Number

    The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.

    MAX31856
  • Qualification Status

    An indicator of formal certification of qualifications.

    Not Qualified
  • Output Type

    The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.

    Digital
  • Interface

    In electronic components, the term "Interface" refers to the point at which two different systems, devices, or components connect and interact with each other. It can involve physical connections such as ports, connectors, or cables, as well as communication protocols and standards that facilitate the exchange of data or signals between the connected entities. The interface serves as a bridge that enables seamless communication and interoperability between different parts of a system or between different systems altogether. Designing a reliable and efficient interface is crucial in ensuring proper functionality and performance of electronic components and systems.

    SPI
  • Max Supply Voltage

    In general, the absolute maximum common-mode voltage is VEE-0.3V and VCC+0.3V, but for products without a protection element at the VCC side, voltages up to the absolute maximum rated supply voltage (i.e. VEE+36V) can be supplied, regardless of supply voltage.

    3.6V
  • Min Supply Voltage

    The minimum supply voltage (V min ) is explored for sequential logic circuits by statistically simulating the impact of within-die process variations and gate-dielectric soft breakdown on data retention and hold time.

    3V
  • Operating Supply Current

    Operating Supply Current, also known as supply current or quiescent current, is a crucial parameter in electronic components that indicates the amount of current required for the device to operate under normal conditions. It represents the current drawn by the component from the power supply while it is functioning. This parameter is important for determining the power consumption of the component and is typically specified in datasheets to help designers calculate the overall power requirements of their circuits. Understanding the operating supply current is essential for ensuring proper functionality and efficiency of electronic systems.

    1.2mA
  • Input Type

    Input type in electronic components refers to the classification of the signal or data that a component can accept for processing or conversion. It indicates whether the input is analog, digital, or a specific format such as TTL or CMOS. Understanding input type is crucial for ensuring compatibility between different electronic devices and circuits, as it determines how signals are interpreted and interacted with.

    Thermocouple
  • Length
    5mm
  • Height Seated (Max)

    Height Seated (Max) is a parameter in electronic components that refers to the maximum allowable height of the component when it is properly seated or installed on a circuit board or within an enclosure. This specification is crucial for ensuring proper fit and alignment within the overall system design. Exceeding the maximum seated height can lead to mechanical interference, electrical shorts, or other issues that may impact the performance and reliability of the electronic device. Manufacturers provide this information to help designers and engineers select components that will fit within the designated space and function correctly in the intended application.

    1.1mm
  • Width
    4.4mm
  • REACH SVHC

    The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.

    Unknown
  • RoHS Status

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

    ROHS3 Compliant
0 Similar Products Remaining

MAX31856 Benefits and Features

  • Provides High-Accuracy Thermocouple Temperature Readings

  1. Includes Automatic Linearization Correction for 8 Thermocouple Types

  2. ±0.15% (max, -20°C to +85°C) Thermocouple FullScale and Linearity Error

  3. 19-Bit, 0.0078125°C Thermocouple Temperature Resolution

  • Internal Cold-Junction Compensation Minimizes System Components

  1. ±0.7°C (max, -20°C to +85°C) Cold-Junction Accuracy

  • ±45V Input Protection Provides Robust System Performance

  • Simplifies System Fault Management and Troubleshooting

  1. Detects Open Thermocouples

  2. Over- and Undertemperature Fault Detection

  • 50Hz/60Hz Noise Rejection Filtering Improves System Performance

  • 14-Pin TSSOP Package


MAX31856 Block Diagram

The MAX31856 is a sophisticated thermocouple-to-digital converter with a built-in 19-bit analog-to-digital converter (ADC). Internal functions include correction for thermocouple nonlinearity, input protection, cold-junction compensation sensing and correction, a digital controller, an SPI-compatible interface, and associated control logic.

max31856 block diagram.png

MAX31856 Applications

  • Temperature Controllers

  • Industrial Ovens, Furnaces, and Environmental

  • Chambers

  • Industrial Equipment


MAX31856 Application Circuit

MAX31856 applications circuit.png

MAX31856 vs. MAX31855

Going through the MAX datasheets, the main difference between the MAX31855 and MAX31856 is that the latter supports B-type thermocouples while the former does not. Both say they support K, J, N, R, S, T, and E types.


MAX31856 Manufacturer

The market is evolving. The rules are changing. To keep your time to market short, you need integration at every level—from silicon to the supply chain. Count on Maxim Integrated to help you overcome design and architectural challenges, with integrated solutions for the industrial, medical, consumer, automotive, energy, computing, and communications realms. Maxim Integrated is also your source for power, interface, and even digital products that work in the analog world. And they’re glad to support you with reference designs, tools, technical documents, packaging, and more. We invite you to explore their latest analog integration offerings.


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Datasheet PDF

Download datasheets and manufacturer documentation for Maxim Integrated MAX31856MUD .
Frequently Asked Questions

What is MAX31856?

The MAX31856 performs cold-junction compensation and digitizes the signal from any type of thermocouple. This converter resolves temperatures to 0.0078125°C, allows readings as high as +1800°C and as low as -210°C (depending on thermocouple type), and exhibits thermocouple voltage measurement accuracy of ±0.15%.

How does MAX31856 work?

The MAX31856 performs cold-junction compensation and digitizes the signal from any type of thermocouple. The output data is formatted in degrees Celsius. ... A SPI-compatible interface allows the selection of thermocouple type and setup of the conversion and fault detection processes.
MAX31856MUD

Maxim Integrated

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