ADIMAX31865ATP+
Overview
The MAX31865ATP+ is a specialized RTD-to-digital converter designed to simplify the interface between Platinum Resistance Temperature Detectors (RTDs) and microcontrollers. It integrates a 15-bit sigma-delta ADC, a register bank, and a 4-wire SPI interface to provide accurate temperature monitoring with built-in fault detection. The device supports 2-wire, 3-wire, and 4-wire RTD configurations, making it highly versatile for precise thermal sensing.
Why Choose This Part
This converter eliminates the need for complex analog front-end design by integrating input protection and fault detection for open or shorted RTD elements. Its 15-bit resolution and support for various RTD wire configurations allow engineers to achieve high precision while minimizing the impact of cable resistance.
Applications
Key Specifications
Getting Started
To evaluate this IC, engineers typically use the MAX31865EVKIT evaluation board, which includes a graphical user interface for configuring registers and monitoring conversions. For firmware development, ensure the SPI controller is configured for 3.3V logic as the device operates between 3.0V and 3.6V.
