A 4-layer PCB with a solid ground plane and a separate analog ground plane is recommended. Keep the analog and digital grounds separate and connect them at a single point. Use a star topology for the power supply and keep the power traces away from the analog signals.
Handle the device by the body, not the pins. Use an anti-static wrist strap or mat to prevent electrostatic discharge. Avoid bending or flexing the pins, and use a soldering iron with a temperature-controlled tip to prevent overheating.
The recommended input signal range is between 100 mV and 5 V. Signals outside this range may not be accurately amplified or may cause the device to saturate.
Use the gain setting formula provided in the datasheet to calculate the optimal gain for your application. Consider factors such as signal amplitude, noise floor, and desired output level. You may need to experiment with different gain settings to find the optimal value for your specific use case.
Use a 10 μF ceramic capacitor in parallel with a 100 nF ceramic capacitor, both connected between the power supply pins and ground. This will help to filter out noise and ensure stable operation.
PGA308AIDRKT datasheet
by Texas Instruments
