LM119H/NOPB datasheet by Texas Instruments

LM119H/NOPB Frequently Asked Questions (FAQs)

• What is the maximum voltage that can be applied to the input pins?
  The maximum voltage that can be applied to the input pins is the supply voltage (Vcc) + 0.3V, but not exceeding 36V.
• How do I ensure the comparator output is stable and not oscillating?
  To ensure a stable output, add a small capacitor (e.g., 10nF) between the output and ground, and a small resistor (e.g., 1kΩ) in series with the output.
• What is the minimum input voltage differential required for a valid comparison?
  The minimum input voltage differential required for a valid comparison is typically around 1-2mV, but this can vary depending on the specific application and noise conditions.
• Can I use the LM119H/NOPB as a zero-crossing detector?
  Yes, the LM119H/NOPB can be used as a zero-crossing detector, but you may need to add external hysteresis to prevent oscillations.
• How do I reduce the power consumption of the LM119H/NOPB?
  To reduce power consumption, consider using a lower supply voltage, reducing the input impedance, or using a lower-power comparator like the LMV119.