LM358AD datasheet by Texas Instruments

LM358AD Frequently Asked Questions (FAQs)

• What is the maximum power dissipation of the LM358AD?
  The maximum power dissipation of the LM358AD is 670mW, which is calculated based on the maximum junction temperature (Tj) of 150°C and the thermal resistance (RθJA) of 125°C/W.
• Can I use the LM358AD as a comparator?
  While the LM358AD can be used as a comparator, it's not the best choice due to its relatively slow slew rate (0.5V/μs) and limited bandwidth (1.2MHz). A dedicated comparator like the LM339 or LM2901 would be a better option.
• How do I ensure stability when using the LM358AD in a feedback loop?
  To ensure stability, make sure to add a capacitor (typically 10-100nF) between the output and the inverting input to compensate for the op-amp's internal capacitance. Additionally, ensure the feedback loop has a gain of less than 1 at the frequency of oscillation.
• What is the input impedance of the LM358AD?
  The input impedance of the LM358AD is typically around 2MΩ, but it can vary depending on the specific application and operating conditions. This is relatively high, making it suitable for high-impedance sources.
• Can I use the LM358AD in a single-supply configuration?
  Yes, the LM358AD can be used in a single-supply configuration, but you'll need to ensure the input common-mode voltage is within the specified range (typically VCC-1.5V to VCC+0.5V). You may also need to add a voltage divider or level shifter to adjust the input voltage.