A good PCB layout for OPA350UA/2K5G4 involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing decoupling capacitors close to the device. TI provides a recommended layout in the datasheet and application notes.
The gain resistor values depend on the desired gain, input impedance, and output impedance. TI provides a gain resistor calculator tool and application notes to help with the selection. Additionally, the datasheet provides a table with recommended gain resistor values for common gains.
The maximum power dissipation of OPA350UA/2K5G4 is dependent on the ambient temperature and the thermal resistance of the package. The datasheet provides a power dissipation curve and thermal resistance values to help calculate the maximum power dissipation for a given application.
OPA350UA/2K5G4 is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. TI provides guidance on high-temperature operation in the datasheet and application notes.
To protect OPA350UA/2K5G4 from EMI, use a shielded enclosure, keep the device away from high-frequency sources, and use filtering and shielding on the input and output lines. TI provides EMI protection guidelines in the datasheet and application notes.
OPA350UA/2K5G4 datasheet
by Texas Instruments
