MAX31850JATB+ by Analog Devices

Cold-Junction Compensated, 1-Wire Thermocouple-to-Digital Converters


The MAX31850/MAX31851 cold-junction compensated, 1-Wire® thermocouple-to-digital converters perform cold-junction compensation and digitize the signal from a K-, J-, N-, T-, S-, R-, or E-type thermocouple. The converters resolve temperatures to 0.25°C, allow readings as high as +1768°C and as low as -270°C, and exhibit thermocouple accuracy of 8 LSBs (2°C) for temperatures ranging from -200°C to +700°C. Communication with the master microcontroller is over a 1-Wire bus that by definition requires only one data line (and ground) for communication. Operating power can be obtained directly from the data line (“parasite power”), eliminating the need for an external power supply. Each device has a unique 64-bit serial code, which allows multiple units to function on the same 1-Wire bus. Therefore, it is simple to use one microcontroller (the master device) to monitor temperature from many thermocouples distributed over a large area. Four location address inputs simplify mapping of individual units to specific locations.

Where to Buy

Prices starting from US$3.64

Distributor Stock
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Farnell
from US$6.08
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Analog Devices
from US$4.08
2,540
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element14
from US$3.64
-
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Features

Integration Reduces Design Time and Lowers System Cost 14-Bit, 0.25°C Resolution Integrated Cold-Junction Compensation Available for Multiple Thermocouples Types: Supports K-, J-, N-, T-, and E-Type (MAX31850); S- and R-Type (MAX31851) Detects Thermocouple Shorts to GND or VDD Detects Open Thermocouple
14-Bit, 0.25°C Resolution
Integrated Cold-Junction Compensation
Available for Multiple Thermocouples Types: Supports K-, J-, N-, T-, and E-Type (MAX31850); S- and R-Type (MAX31851)
Detects Thermocouple Shorts to GND or VDD
Detects Open Thermocouple
1-Wire Multiddrop Capability Simplifies Multisensor Systems 1-Wire Interface (Read-Only); Power Can Be Obtained from Interface (Parasite-Powered Mode)
1-Wire Interface (Read-Only); Power Can Be Obtained from Interface (Parasite-Powered Mode)

Specifications

Sensor Type Remote
# Channels One
Interface 1-Wire
Functions Thermocouple-to-Digital Converter
Accuracy (±°C) 2
Parasite Pwr. Yes
Temp. Resolution (bits) 14
Oper. Temp. (°C) -40 to +125
Package/Pins TDFN/10
BudgetaryPrice (See Notes) 3.81


MAX31850JATB+ Sensors & Transducers by Analog Devices

TEMPERATURE SENSOR 4DEG C TDFN-10

Status: Unknown
Series: -
RoHS: Unknown
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Specifications

IC Output Type Digital
Sensing Accuracy Range ± 4°C
Sensing Temperature Min -210°C
Sensing Temperature Max 1200°C
Sensor Case Style TDFN
No. of Pins 10Pins
Supply Voltage Min 3V
Supply Voltage Max 3.7V
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

1-WIRE THRMOCPLE TO DIG CONV J | Analog Devices
TEMPERATURE SENSOR, 4DEG C, TDFN-10 | Farnell

Frequently Asked Questions

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Is the MAX31850JATB+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, element14 and Farnell have stock available or on a lead time for MAX31850JATB+ .

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