LM239APT datasheet by STMicroelectronics

LM239APT Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for the LM239APT?
  The LM239APT can operate from -40°C to 125°C, making it suitable for a wide range of applications.
• How do I ensure the stability of the LM239APT in my circuit?
  To ensure stability, make sure to decouple the power supply lines with a 10uF capacitor, and use a 1uF capacitor between the output and the inverting input. Also, keep the layout clean and avoid long traces.
• What is the maximum input voltage that the LM239APT can handle?
  The LM239APT can handle input voltages up to 36V, but it's recommended to keep the input voltage below 30V for optimal performance.
• Can I use the LM239APT as a comparator?
  Yes, the LM239APT can be used as a comparator. It has a built-in hysteresis of 1.5mV, which helps to prevent oscillations and ensures a clean output signal.
• How do I choose the right resistor values for the feedback network?
  Choose resistor values that provide a gain of 1-10 for the non-inverting amplifier configuration, and 1-100 for the inverting amplifier configuration. Also, consider the input impedance and output impedance of the circuit when selecting resistor values.