The maximum power dissipation of the TL082BCDR is 670mW, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (RθJA) of 125°C/W.
While the TL082BCDR is rated for operation up to 125°C, it's not recommended to use it in high-temperature environments above 85°C without proper heat sinking and thermal management, as this can affect its reliability and lifespan.
To ensure stability, make sure to follow proper PCB layout practices, use a stable power supply, and add decoupling capacitors (e.g., 100nF) close to the op-amp's power pins. Additionally, consider adding a compensation capacitor (e.g., 10pF) between the output and inverting input pins if you're using the op-amp in a unity-gain configuration.
The recommended input impedance for the TL082BCDR is between 1kΩ and 100kΩ. This ensures that the op-amp's input stage is properly biased and that the input signal is not attenuated.
While the TL082BCDR can be used as a comparator, it's not the most suitable op-amp for this application due to its relatively slow slew rate (13V/μs) and limited bandwidth (3MHz). Consider using a dedicated comparator IC or a faster op-amp like the TLV247x for comparator applications.