INA197AIDBVRG4 datasheet by Texas Instruments

INA197AIDBVRG4 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 ±20V for optimal performance and to prevent damage to the device.
• How do I calculate the gain of the INA197?
  The gain of the INA197 can be calculated using the formula: Gain = 28.2 / (Rgain x Rsense), where Rgain is the gain resistor and Rsense is the sense resistor. The gain resistor value can be chosen based on the desired gain and sense resistor value.
• What is the purpose of the REF pin?
  The REF pin is used to set the reference voltage for the internal amplifier. It can be connected to a voltage reference or a resistive divider to set the desired reference voltage. The REF pin should be decoupled with a capacitor to reduce noise and improve performance.
• How do I handle the common-mode voltage range of the INA197?
  The INA197 has a common-mode voltage range of ±12V. To handle this, ensure that the input signals are within this range, and use a common-mode filter or a voltage divider to shift the input signals to within the acceptable range if necessary.
• What is the effect of temperature on the INA197's performance?
  The INA197's performance is affected by temperature, with the gain and offset voltage varying with temperature. The device is specified to operate from -40°C to 125°C, and the user should consider the temperature coefficient of the device when designing the application.