INA152EA/2K5 datasheet by Texas Instruments

INA152EA/2K5 Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the INA152EA/2K5 can handle?
  The INA152EA/2K5 can handle input voltages up to ±650mV, but it's recommended to keep the input voltage within ±500mV to ensure accurate measurements.
• How do I choose the correct gain resistor for my application?
  The gain resistor (Rg) should be chosen based on the desired gain and the input voltage range. A higher gain resistor value results in higher gain, but also increases noise and offset voltage. A good starting point is to use the recommended Rg value from the datasheet and adjust as needed for your specific application.
• What is the purpose of the capacitor on the REF pin?
  The capacitor on the REF pin is used to filter out noise and provide a stable reference voltage. A 10nF to 100nF capacitor is recommended, but the exact value depends on the specific application and noise requirements.
• How do I layout the PCB to minimize noise and ensure accurate measurements?
  To minimize noise and ensure accurate measurements, keep the input traces as short as possible, use a ground plane, and separate the analog and digital sections of the board. Also, avoid running digital signals near the analog input traces.
• What is the typical settling time of the INA152EA/2K5?
  The typical settling time of the INA152EA/2K5 is around 10µs to 20µs, depending on the gain and input voltage. This is the time it takes for the output voltage to settle within 1% of its final value after a step change in the input voltage.