http://www.analog.com/media/en/techn...ets/2983fc.pdf
Multi-Sensor High Accuracy Digital Temperature Measurement System

Directly Digitize RTDs, Thermocouples, Thermistors
and Diodes
Single 2.85V to 5.25V Supply
Results Reported in °C or °F
20 Flexible Inputs Allow Interchanging Sensors
Automatic Thermocouple Cold Junction Compensation
Built-In Standard and User-Programmable Coefficients
for Thermocouples, RTDs and Thermistors
Configurable 2-, 3- or 4-Wire RTD Configurations
Measures Negative Thermocouple Voltages
Automatic Burn Out, Short-Circuit and Fault Detection
Buffered Inputs Allow External Protection
Simultaneous 50Hz/60Hz Rejection
Includes 15ppm/°C (Max) Reference (I-Grade)