INA199B2RSWR datasheet by Texas Instruments

INA199B2RSWR Frequently Asked Questions (FAQs)

• What is the maximum voltage that can be applied to the input pins of the INA199?
  The maximum voltage that can be applied to the input pins of the INA199 is ±40V, but it's recommended to keep it within the supply voltage range to ensure accurate measurements.
• How do I calculate the gain of the INA199?
  The gain of the INA199 is determined by the ratio of the input resistors (R1 and R2) and the feedback resistor (Rgain). The gain can be calculated using the formula: Gain = (Rgain / R1) * (R2 / R1).
• What is the purpose of the CAP pin on the INA199?
  The CAP pin is used to connect a capacitor to filter out high-frequency noise and improve the accuracy of the measurements. A 10nF to 100nF capacitor is recommended.
• Can I use the INA199 to measure AC currents?
  Yes, the INA199 can be used to measure AC currents, but it's recommended to use a suitable filter or rectifier circuit to convert the AC signal to a DC signal before applying it to the INA199.
• What is the maximum current that can be measured by the INA199?
  The maximum current that can be measured by the INA199 depends on the gain setting and the input resistors used. With the maximum gain setting and 1kΩ input resistors, the INA199 can measure up to ±50A.