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MAX31855TASA+T - Analog Devices

Description: Cold-Junction Compensated Thermocouple-to-Digital Converter Voltage,3.0 3.3 3.6 V,

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MAX31855TASA+T - Analog Devices - PCB symbol
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MAX31855TASA+T - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - S8+4
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MAX31855TASA+T - Analog Devices - 3D model - Small Outline Packages - S8+4
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MAX31855TASA+T Details

  • Manufacturer Part Number:

    MAX31855TASA+T

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    8-SOIC_N-150_MIL

  • Package Description:

    ROHS COMPLIANT, SOP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    8-SOIC_N-150_MIL

  • Country Of Origin:

    Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA

  • HTS Code:

    8542.39.00.01

  • Date Of Intro:

    2011-04-05

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    ANALOG CIRCUIT

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    1.5 mA

  • Supply Voltage-Max (Vsup):

    3.6 V

  • Supply Voltage-Min (Vsup):

    3 V

  • Supply Voltage-Nom (Vsup):

    3.3 V

  • Surface Mount:

    YES

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    3.9 mm

MAX31855TASA+T Frequently Asked Questions (FAQs)

  • A good PCB layout for the MAX31855TASA+T involves keeping the thermocouple traces as short as possible, using a dedicated ground plane, and avoiding running digital signals near the thermocouple inputs. Additionally, it's recommended to use a thermocouple connector with a built-in cold junction compensation (CJC) sensor.
  • The MAX31855TASA+T has an internal CJC sensor that measures the temperature of the IC. You can use this internal CJC reading to compensate for the cold junction temperature. Alternatively, you can use an external CJC sensor and connect it to the CJCIN pin. Make sure to follow the datasheet guidelines for CJC sensor selection and connection.
  • The maximum length of thermocouple wire that can be used with the MAX31855TASA+T depends on the type of thermocouple wire, the operating temperature range, and the desired accuracy. As a general rule, keep the thermocouple wire as short as possible (less than 10 feet) to minimize noise and errors. For longer wire lengths, consider using a thermocouple wire with a higher gauge size or a thermocouple extension cable with built-in noise filtering.
  • The MAX31855TASA+T has a built-in thermocouple type selection feature. You can select the thermocouple type using the TYPEx pins. For custom thermocouple types, you can use the internal calibration registers to adjust the gain and offset values. Refer to the datasheet for the calibration procedure and register settings.
  • The recommended power-up sequence for the MAX31855TASA+T is to apply the power supply voltage (VCC) first, followed by the logic input voltage (VLOGIC). This ensures that the internal voltage regulators and analog circuits are properly initialized. Avoid applying the thermocouple voltage before the power supply voltage is stable.

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MAX31855TASA+T Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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