The maximum power dissipation of the TL082CDT is 670mW, which is calculated based on the maximum junction temperature (TJ) of 150°C and the thermal resistance (RthJA) of 125°C/W.
While the TL082CDT is an op-amp, it's not recommended to use it as a comparator. The TL082CDT is designed for linear applications, and its output stage is not optimized for high-speed switching. Using it as a comparator may lead to oscillations, instability, or incorrect output states.
To ensure stability, make sure to follow proper compensation techniques, such as adding a capacitor in parallel with the feedback resistor to reduce the gain-bandwidth product. Additionally, ensure that the feedback loop has a sufficient phase margin (>45°) to prevent oscillations.
For optimal performance, keep the input and output traces short and symmetrical, and use a ground plane to reduce noise. Place decoupling capacitors (e.g., 100nF) close to the power pins, and use a low-ESR capacitor (e.g., 10uF) for power supply filtering.
The TL082CDT is rated for operation up to 125°C, but its performance may degrade at high temperatures. If you need to operate the device in a high-temperature environment, ensure that you follow proper thermal management and derate the device's power dissipation accordingly.
TL082CDT datasheet
by STMicroelectronics
