MAX31856

Part: Adafruit MAX31856 Universal Thermocouple Amplifier — Adafruit

Type: Universal Thermocouple Amplifier

Description: A thermocouple amplifier/converter that supports K, J, N, R, S, T, E, or B type thermocouples, providing -210°C to +1800°C output with 0.0078125°C resolution, and communicating over 4-wire SPI.

Operating Conditions:

• Supply voltage: 3–5VDC
• Logic level: 3–5V
• Interface: 4-wire SPI

Key Specs:

• Supported Thermocouple Types: K, J, N, R, S, T, E, B
• Temperature Measurement Range: -210°C to +1800°C
• Temperature Resolution: 0.0078125°C
• Internal Temperature Reading: Yes
• 3.3V Output Current: Up to 100mA
• Cold Junction Fault Thresholds: -127 to +127 °C
• Thermocouple Fault Thresholds: -4096 to +4096 °C with 0.0625 °C resolution

Features:

• Cold-compensation reference
• Non-linearity calculations
• Out-of-range and fault notifications
• Integrated 3.3V regulator
• Level shifting circuitry for 3-5V logic
• Onboard inline resistors and filter capacitor for stability
• Fault output pin (FLT)
• Data Ready pin (DRDY)

Package:

• 2 pin terminal block (for thermocouple connection)
• Pin header (to plug into any breadboard or perfboard)