Overview
The MAX31855KASA+T, produced by Analog Devices Inc./Maxim Integrated, is a sophisticated thermocouple-to-digital converter designed to provide high accuracy and reliability in temperature measurement applications. This device integrates a 14-bit analog-to-digital converter (ADC), cold-junction compensation, and a digital controller, making it an ideal solution for various industrial, appliance, and HVAC applications.
Key Specifications
| Parameter | Value | Units | Conditions |
|---|---|---|---|
| Supply Voltage | 3.0V to 3.6V | V | |
| Temperature Resolution | 0.25°C | °C | |
| Temperature Range | -270°C to +1800°C | °C | |
| Thermocouple Accuracy (K-type, -200°C to +700°C) | ±2°C | °C | TA = -20°C to +85°C |
| ADC Resolution | 14-bit | ||
| Interface | SPI-compatible | ||
| Package Type | SO-8 | ||
| No. of Pins | 8 |
Key Features
- Integration of a 14-bit ADC, cold-junction compensation, and digital controller, reducing design time and system cost.
- Supports K-, J-, N-, T-, S-, R-, and E-type thermocouples.
- SPI-compatible interface for easy communication with external microcontrollers.
- High temperature resolution of 0.25°C and wide temperature range from -270°C to +1800°C.
- Thermocouple accuracy of ±2°C for temperatures ranging from -200°C to +700°C for K-type thermocouples.
- Fault detection for open or shorted thermocouple inputs.
Applications
- Industrial process control and monitoring.
- Appliance temperature control.
- HVAC systems.
- Thermostatic control systems.
Q & A
- What is the MAX31855KASA+T used for?
The MAX31855KASA+T is used as a thermocouple-to-digital converter, providing accurate temperature readings in various industrial, appliance, and HVAC applications.
- What types of thermocouples does the MAX31855KASA+T support?
The device supports K-, J-, N-, T-, S-, R-, and E-type thermocouples.
- What is the temperature resolution of the MAX31855KASA+T?
The temperature resolution is 0.25°C.
- What is the operating temperature range of the MAX31855KASA+T?
The operating temperature range is from -270°C to +1800°C.
- What is the accuracy of the MAX31855KASA+T for K-type thermocouples?
The accuracy is ±2°C for temperatures ranging from -200°C to +700°C.
- What interface does the MAX31855KASA+T use for communication?
The device uses an SPI-compatible interface.
- What package type is the MAX31855KASA+T available in?
The device is available in an SO-8 package.
- Does the MAX31855KASA+T have fault detection capabilities?
Yes, it has fault detection for open or shorted thermocouple inputs.
- What is the supply voltage range for the MAX31855KASA+T?
The supply voltage range is from 3.0V to 3.6V.
- What is the ADC resolution of the MAX31855KASA+T?
The ADC resolution is 14-bit.
