A good PCB layout for the OPA830 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. A 4-layer PCB with a dedicated ground plane is recommended.
The choice of gain resistors depends on the desired gain and bandwidth of the amplifier. A good starting point is to use the gain resistor values recommended in the datasheet, and then adjust them based on the specific requirements of your application.
The maximum power dissipation of the OPA830 is dependent on the ambient temperature and the thermal resistance of the package. According to the datasheet, the maximum power dissipation is 1.4W at 25°C ambient temperature.
Yes, the OPA830 can be used as a unity-gain buffer by connecting the output directly to the inverting input and using a gain resistor of 0Ω. However, this configuration may not provide the best noise performance.
The OPA830 has a high bandwidth, which can make it susceptible to high-frequency noise. To filter out high-frequency noise, you can add a low-pass filter at the input or output of the amplifier, or use a ferrite bead or inductor in series with the input or output.
OPA830IDBVR datasheet
by Texas Instruments
