The maximum power dissipation of LP324M is 670mW when the device is operated at a junction temperature of 150°C and a free-air temperature of 25°C.
To ensure stability in the LP324M op-amp, it is recommended to use a bypass capacitor of 0.1μF to 1μF between the VCC pin and the GND pin, and to minimize the length of the input traces to reduce noise and oscillations.
While LP324M can be used as a comparator, it is not recommended due to its limited slew rate and bandwidth. Texas Instruments recommends using a dedicated comparator like the LM339 or LM2901 for comparator applications.
The input impedance of LP324M is typically around 1MΩ, but it can vary depending on the specific application and operating conditions.
LP324M is rated for operation up to 125°C, but its performance may degrade at higher temperatures. If you need to operate the device at higher temperatures, consider using a more temperature-stable op-amp like the OPA333 or OPA4340.