INA114AU datasheet by Texas Instruments

INA114AU Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the INA114AU can handle?
  The INA114AU can handle input voltages up to ±40V, but it's recommended to keep the input voltage within ±20V for optimal performance.
• How do I ensure the INA114AU is operating within its common-mode voltage range?
  The INA114AU's common-mode voltage range is ±200mV. To ensure operation within this range, use a voltage divider or an op-amp to level-shift the input signal to be within ±200mV of the supply voltage.
• What is the purpose of the REF pin on the INA114AU?
  The REF pin is a reference voltage output that can be used as a voltage reference for the system. It is internally connected to the midpoint of the supply voltage and can be used to bias the input signal or as a reference for an ADC.
• How do I calculate the gain of the INA114AU?
  The gain of the INA114AU is determined by the ratio of the resistors used in the feedback network. The gain can be calculated using the formula: Gain = (R2/R1) + 1, where R1 and R2 are the resistors in the feedback network.
• What is the bandwidth of the INA114AU?
  The bandwidth of the INA114AU is approximately 1.2MHz, but it can be affected by the gain setting and the input capacitance. The bandwidth can be calculated using the formula: Bandwidth = (1.2MHz) / (Gain + 1).