The maximum power supply voltage that can be applied to the LM324ADT is ±18V. Exceeding this voltage can cause damage to the device.
While the LM324ADT can be used as a comparator, it's not the best choice. The LM324ADT is an op-amp designed for linear applications, and its output stage is not optimized for high-speed switching. For comparator applications, a dedicated comparator like the LM339 or LM2901 is a better choice.
To ensure stability, make sure to follow proper PCB layout practices, use a low-ESR capacitor for decoupling, and avoid using long wires or traces that can introduce parasitic inductance. Additionally, consider adding a compensation capacitor (e.g., 10-100 pF) between the output and the inverting input to improve stability.
The LM324ADT can supply up to 40 mA of output current. However, the output current should be limited to 20 mA or less to ensure reliable operation and prevent overheating.
The LM324ADT is rated for operation up to 125°C (TJ). However, the device's performance and reliability may degrade at high temperatures. If your application requires operation above 85°C, consider using a more temperature-resistant op-amp or taking additional thermal management measures.
LM324ADT datasheet
by STMicroelectronics
