MAX31865ATP+T Analog Devices

The MAX31865ATP+T is an Analog Devices specialized RTD to Digital Converter that is designed to take a remote temperature rheostat (RTD) and convert it to a digital output. The device features an onboard low-noise, low-drift amplifier that amplifies and filters the small signal generated by the RTD input. It then utilizes differential analog-to-digital conversion to determine the temperature across the RTD. The temperature-to-digital design further eliminates the traditional external offset and span adjustments to complete the signal processing.The device features integrated cold junction compensation, an SPI/Microwire compatible serial interface for easy communication with external microcontrollers, an on-chip voltage reference, and a selectable 12-bit or 14-bit resolution. The MAX31865ATP+T also comes with several protection features such as short-circuit, over temperature, and open circuit fault detection. This data acquisition component is ideal for applications where accuracy, stability, and cost are key design consideration.