The MAX31855 is a sophisticated thermocouple-to-digital converter with a built-in 14-bit analog-to-digital converter (ADC). The device also contains cold-junction compensation sensing and correction, a digital controller, an SPI-compatible interface, and associated control logic. The M31855K is designed to work in conjunction with an external microcontroller (μC) in thermostatic, process-control, or monitoring applications. The device is available in several versions, each optimized and trimmed for a specific thermocouple type (K, J, N, T, S, R, or E.). The thermocouple type is indicated in the suffix of the part number (e.g., MAX31855K). This converter resolves temperatures to 0.25°C, allows readings as high as +1800°C and as low as -270°C, and exhibits thermocouple accuracy of ±2°C for temperatures ranging from -200°C to +700°C for K-type thermocouples.Features Of MAX31855 Drive IC:
Integration Reduces Design Time and Lowers System Cost
14-Bit, 0.25°C Resolution Converter
Integrated Cold-Junction Compensation
Versions Available for Most Common Thermocouple Types: K-, J-, N-, T-, S-, R-, and E-Type
Detects Thermocouple Shorts to GND or VCC
Detects Open Thermocouple
Interfaces to Most Microcontrollers
Simple SPI-Compatible Interface (Read-Only)
Specifications Of Cold Junction Compensated Thermocouple to Digital Converter:
Model: M31855K
ADC: 14-bit analog-to-digital converter
Supply Voltage Range (VCC to GND): -0.3V to +4.0V
Operating Temperature Range: -40°C to +125°C
Thermocouple: K-type thermocouples.
Thermocouple Accuracy: ±2°C
Pins Configuration:
Datasheet:
MAX31855K
Package Include:
1x MAX31855K
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