LM358ST datasheet by STMicroelectronics

LM358ST Frequently Asked Questions (FAQs)

• What is the maximum power dissipation of the LM358ST?
  The maximum power dissipation of the LM358ST is 670mW, which is calculated based on the package thermal resistance and the maximum junction temperature.
• Can I use the LM358ST as a comparator?
  While the LM358ST is an op-amp, it can be used as a comparator in a pinch. However, it's not ideal for this application due to its limited slew rate and bandwidth. A dedicated comparator like the LM339 would be a better choice.
• How do I ensure stability when using the LM358ST in a feedback loop?
  To ensure stability, make sure to add a capacitor (typically 10-100nF) between the output and the inverting input to prevent oscillations. Additionally, ensure that the feedback loop has a sufficient phase margin and gain margin.
• What is the input impedance of the LM358ST?
  The input impedance of the LM358ST is typically around 2MΩ, which is relatively high. This makes it suitable for use with high-impedance sources.
• Can I use the LM358ST in a single-supply configuration?
  Yes, the LM358ST can be used in a single-supply configuration. However, the input common-mode voltage range is limited to VCC-1.5V to VCC+0.5V, so ensure that your input signals are within this range.