INA126E/250 datasheet by Texas Instruments

INA126E/250 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 to ensure accurate measurements.
• How do I ensure accurate gain and offset calibration?
  To ensure accurate gain and offset calibration, it's recommended to use a high-precision voltage reference and a stable power supply. Additionally, the calibration process should be done at the operating temperature range of the device.
• What is the recommended layout and grounding technique for the INA126E/250?
  A good layout and grounding technique is crucial for the INA126E/250. It's recommended to use a star-grounding configuration, keep the input traces short and away from noise sources, and use a solid ground plane to minimize noise and electromagnetic interference (EMI).
• How do I handle electromagnetic interference (EMI) and radio-frequency interference (RFI) in my design?
  To handle EMI and RFI, it's recommended to use shielding, filtering, and grounding techniques. Additionally, the INA126E/250 has built-in EMI filters, but it's still important to follow good design practices to minimize noise and interference.
• What is the recommended power-up sequence for the INA126E/250?
  The recommended power-up sequence for the INA126E/250 is to apply the power supply voltage (VCC) before applying the input signal. This ensures that the device is properly biased and configured before the input signal is applied.