The maximum voltage that can be applied to the input pins is 26.4V, which is the absolute maximum rating. However, for normal operation, the recommended maximum input voltage is 24V.
The gain of the INA211 can be calculated using the formula: Gain = 5V / (Rgain x Vref), where Rgain is the gain resistor value and Vref is the reference voltage. The default gain resistor value is 200kΩ, and the default reference voltage is 2.048V.
The CAP pin is used to connect a capacitor to filter out high-frequency noise and oscillations. A 10nF to 100nF capacitor is recommended to be connected between the CAP pin and GND.
To configure the INA211 for a differential input, connect the positive input signal to the IN+ pin and the negative input signal to the IN- pin. Make sure to also connect the COM pin to the analog ground (AGND) or a quiet analog ground point.
The INA211 can sink or source up to 10mA of current. However, it's recommended to limit the output current to 5mA or less to ensure accurate and stable operation.
INA211AIDCKRG4 datasheet
by Texas Instruments
Findchips
