Thermocouple sensor AD8495 - How it works
The AD8495 is an instrumentation amplifier with thermocouple cold junction compensation built on an integrated circuit by Analog Devices.
Datasheet
For an in-depth look at technical specifications, refer to the official AD8495 Datasheet:
AD8495 Datasheet
Detailed technical documentation for the AD8495 sensor
How the sensor works
The AD8495 is a precision thermocouple amplifier designed for accurate temperature measurement with K-type thermocouples. It integrates a cold junction compensation circuit and an instrumentation amplifier to output a high-level voltage directly proportional to temperature.
The amplifier operates based on the thermoelectric effect, where a voltage is generated at the junction of two dissimilar metals when subjected to a temperature gradient. This voltage—typically in the microvolt range—is amplified by the AD8495 to provide a clean, linear output of 5 mV/°C, eliminating the need for complex signal conditioning.
