The circuit shown in Figure 1 is a complete thermocouple signal
conditioning circuit with cold junction compensation followed
by a 16-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC).
The AD8495 thermocouple amplifier provides a simple, low cost
solution for measuring K type thermocouple temperatures,
including cold junction compensation.
Thermocouple temperature measurement system with cold junction compensation 2013-11-20
Thermocouple measurement with amp controlled Cold Junction Compensation