Solutions Search - LTC2449 - 24-Bit High Speed 8-/16-Channel Delta Sigma ADCs with Selectable Speed/Resolution

RTD and Thermocouple Remote Temperature Digitizer

Apr 1st 2004
The LTC2449 is commonly used with thermocouples and RTDs as shown in this circuit. Thermocouple outputs produce very small changes (tens of microvolts per degree C) and the output will be negative if the thermocouple is colder than the “cold junction” connection from the thermocouple to the copper traces on the PCB. The ...