INA209AIPWG4 datasheet by Texas Instruments

INA209AIPWG4 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 ±40V, but it's recommended to keep it within the supply voltage range (VCC) to ensure accurate measurements.
• How do I calculate the gain of the INA209?
  The gain of the INA209 is fixed at 20V/V. You can calculate the output voltage by multiplying the input voltage by the gain. For example, if the input voltage is 1V, the output voltage would be 20V.
• What is the purpose of the REF pin?
  The REF pin is used to set the reference voltage for the output. It's typically connected to a voltage reference or a voltage divider to set the output voltage range. The output voltage will be centered around the REF pin voltage.
• Can I use the INA209 with a single-supply voltage?
  Yes, the INA209 can be used with a single-supply voltage. However, the input common-mode voltage range is limited to VCC - 1.5V to VCC + 0.5V. Make sure to check the input voltage range and adjust the circuit accordingly.
• What is the bandwidth of the INA209?
  The bandwidth of the INA209 is 2.5MHz. It's suitable for most industrial and automotive applications, but may not be suitable for high-frequency applications.